通过日志恢复SQL Server的历史数据
通过日志还原
方案一：
前提条件
1.必须有一个完整的备份，且这个备份必须是在修改、删除数据之前做的。
2.在更新、删除数据之后，做日志备份，该log备份将用于还原之前的数据
建议使用备份数据库进行还原操作，确认无误再对原库进行操作，或同步数据
开始还原操作：
此处使用SQL management界面操作
“右键数据库” - “任务” - “还原” - “数据库”，
在“常规”选择页中的设备后面选择我们之前的完整备份及目标数据库
在“选项” - “恢复状态” 下选择第2项“不对数据库执行任何操作，不回滚提交的事务。。”（RESTOR WITH RECOVERY），点确定后，可以看到数据库的状态变成“正在还原。。”
最后：在数据库上点右键–还原–事务日志，选择刚刚我们删除表后备份的事务日志，
在下面选择时间点，这个时间是上面我们记住的删除表之前的时间，点击确定后，还原成功。可以看到被删除的表又回来了。
方案二：
前提条件
1.完整的日志文件
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1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 | CREATE PROCEDURE Recover_Deleted_Data_BylogBackup_Proc @Database_Name NVARCHAR(MAX) , @SchemaName_n_TableName NVARCHAR(MAX) , @Backuppath NVARCHAR(2000), @Date_From DATETIME = '1900/01/01' , @Date_To DATETIME = '9999/12/31' AS DECLARE @RowLogContents VARBINARY(8000) DECLARE @TransactionID NVARCHAR(MAX) DECLARE @AllocUnitID BIGINT DECLARE @AllocUnitName NVARCHAR(MAX) DECLARE @SQL NVARCHAR(MAX) DECLARE @Compatibility_Level INT IF ( @Backuppath IS NULL OR @Backuppath = '' ) BEGIN RAISERROR('The parameter @Backuppath can not be null!',16,1) RETURN END SELECT @Compatibility_Level = dtb.compatibility_level FROM master.sys.databases AS dtb WHERE dtb.name = @Database_Name IF ISNULL(@Compatibility_Level, 0) <= 80 BEGIN RAISERROR('The compatibility level should be equal to or greater SQL SERVER 2005 (90)',16,1) RETURN END IF ( SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE [TABLE_SCHEMA] + '.' + [TABLE_NAME] = @SchemaName_n_TableName ) = 0 BEGIN RAISERROR('Could not found the table in the defined database',16,1) RETURN END DECLARE @bitTable TABLE ( [ID] INT , [Bitvalue] INT )--Create table to set the bit position of one byte. INSERT INTO @bitTable SELECT 0 , 2 UNION ALL SELECT 1 , 2 UNION ALL SELECT 2 , 4 UNION ALL SELECT 3 , 8 UNION ALL SELECT 4 , 16 UNION ALL SELECT 5 , 32 UNION ALL SELECT 6 , 64 UNION ALL SELECT 7 , 128 --Create table to collect the row data. DECLARE @DeletedRecords TABLE ( [Row ID] INT IDENTITY(1, 1) , [RowLogContents] VARBINARY(8000) , [AllocUnitID] BIGINT , [Transaction ID] NVARCHAR(MAX) , [FixedLengthData] SMALLINT , [TotalNoOfCols] SMALLINT , [NullBitMapLength] SMALLINT , [NullBytes] VARBINARY(8000) , [TotalNoofVarCols] SMALLINT , [ColumnOffsetArray] VARBINARY(8000) , [VarColumnStart] SMALLINT , [Slot ID] INT , [NullBitMap] VARCHAR(MAX) )--Create a common table expression to get all the row data plus how many bytes we have for each row.; WITH RowData AS ( SELECT [RowLog Contents 0] AS [RowLogContents] , [AllocUnitID] AS [AllocUnitID] , [Transaction ID] AS [Transaction ID] --[Fixed Length Data] = Substring (RowLog content 0, Status Bit A+ Status Bit B + 1,2 bytes) , CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) AS [FixedLengthData] --@FixedLengthData -- [TotalnoOfCols] = Substring (RowLog content 0, [Fixed Length Data] + 1,2 bytes) , CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) AS [TotalNoOfCols] --[NullBitMapLength]=ceiling([Total No of Columns] /8.0) , CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)) AS [NullBitMapLength] --[Null Bytes] = Substring (RowLog content 0, Status Bit A+ Status Bit B + [Fixed Length Data] +1, [NullBitMapLength] ) , SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 3, CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0))) AS [NullBytes] --[TotalNoofVarCols] = Substring (RowLog content 0, Status Bit A+ Status Bit B + [Fixed Length Data] +1, [Null Bitmap length] + 2 ) , ( CASE WHEN SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 3 + CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)), 2)))) ELSE NULL END ) AS [TotalNoofVarCols] --[ColumnOffsetArray]= Substring (RowLog content 0, Status Bit A+ Status Bit B + [Fixed Length Data] +1, [Null Bitmap length] + 2 , [TotalNoofVarCols]*2 ) , ( CASE WHEN SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) THEN SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 3 + CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)) + 2, ( CASE WHEN SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 3 + CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)), 2)))) ELSE NULL END ) * 2) ELSE NULL END ) AS [ColumnOffsetArray] -- Variable column Start = Status Bit A+ Status Bit B + [Fixed Length Data] + [Null Bitmap length] + 2+([TotalNoofVarCols]*2) , CASE WHEN SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) THEN ( CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 4 + CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)) + ( ( CASE WHEN SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 3 + CONVERT(INT, CEILING(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(SUBSTRING([RowLog Contents 0], 2 + 1, 2)))) + 1, 2)))) / 8.0)), 2)))) ELSE NULL END ) * 2 ) ) ELSE NULL END AS [VarColumnStart] , [Slot ID] FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE AllocUnitId IN ( SELECT [Allocation_unit_id] FROM sys.allocation_units allocunits INNER JOIN sys.partitions partitions ON ( allocunits.type IN ( 1, 3 ) AND partitions.hobt_id = allocunits.container_id ) OR ( allocunits.type = 2 AND partitions.partition_id = allocunits.container_id ) WHERE object_id = OBJECT_ID('' + @SchemaName_n_TableName + '') ) AND Context IN ( 'LCX_MARK_AS_GHOST', 'LCX_HEAP' ) AND Operation IN ( 'LOP_DELETE_ROWS' ) AND SUBSTRING([RowLog Contents 0], 1, 1) IN ( 0x10, 0x30, 0x70 ) /*Use this subquery to filter the date*/ AND [TRANSACTION ID] IN ( SELECT DISTINCT [TRANSACTION ID] FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE Context IN ( 'LCX_NULL' ) AND Operation IN ( 'LOP_BEGIN_XACT' ) AND [Transaction Name] IN ( 'DELETE', 'user_transaction' ) AND CONVERT(NVARCHAR(11), [Begin Time]) BETWEEN @Date_From AND @Date_To ) ), --Use this technique to repeate the row till the no of bytes of the row. N1 ( n ) AS ( SELECT 1 UNION ALL SELECT 1 ), N2 ( n ) AS ( SELECT 1 FROM N1 AS X , N1 AS Y ), N3 ( n ) AS ( SELECT 1 FROM N2 AS X , N2 AS Y ), N4 ( n ) AS ( SELECT ROW_NUMBER() OVER ( ORDER BY X.n ) FROM N3 AS X , N3 AS Y ) INSERT INTO @DeletedRecords SELECT RowLogContents , [AllocUnitID] , [Transaction ID] , [FixedLengthData] , [TotalNoOfCols] , [NullBitMapLength] , [NullBytes] , [TotalNoofVarCols] , [ColumnOffsetArray] , [VarColumnStart] , [Slot ID] ---Get the Null value against each column (1 means null zero means not null) , [NullBitMap] = ( REPLACE(STUFF(( SELECT ',' + ( CASE WHEN [ID] = 0 THEN CONVERT(NVARCHAR(1), ( SUBSTRING(NullBytes, n, 1) % 2 )) ELSE CONVERT(NVARCHAR(1), ( ( SUBSTRING(NullBytes, n, 1) / [Bitvalue] ) % 2 )) END ) --as [nullBitMap] FROM N4 AS Nums JOIN RowData AS C ON n <= NullBitMapLength CROSS JOIN @bitTable WHERE C.[RowLogContents] = D.[RowLogContents] ORDER BY [RowLogContents] , n ASC FOR XML PATH('') ), 1, 1, ''), ',', '') ) FROM RowData D IF ( SELECT COUNT(*) FROM @DeletedRecords ) = 0 BEGIN RAISERROR('There is no data in the log as per the search criteria',16,1) RETURN END DECLARE @ColumnNameAndData TABLE ( [Row ID] INT , [Rowlogcontents] VARBINARY(MAX) , [NAME] SYSNAME , [nullbit] SMALLINT , [leaf_offset] SMALLINT , [length] SMALLINT , [system_type_id] TINYINT , [bitpos] TINYINT , [xprec] TINYINT , [xscale] TINYINT , [is_null] INT , [Column value Size] INT , [Column Length] INT , [hex_Value] VARBINARY(MAX) , [Slot ID] INT , [Update] INT ) --Create common table expression and join it with the rowdata table-- to get each column details/*This part is for variable data columns*/--@RowLogContents, --(col.columnOffValue - col.columnLength) + 1,--col.columnLength--) INSERT INTO @ColumnNameAndData SELECT [Row ID] , Rowlogcontents , NAME , cols.leaf_null_bit AS nullbit , leaf_offset , ISNULL(syscolumns.length, cols.max_length) AS [length] , cols.system_type_id , cols.leaf_bit_position AS bitpos , ISNULL(syscolumns.xprec, cols.precision) AS xprec , ISNULL(syscolumns.xscale, cols.scale) AS xscale , SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) AS is_null , ( CASE WHEN leaf_offset < 1 AND SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) = 0 THEN ( CASE WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - POWER(2, 15) ELSE CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) END ) END ) AS [Column value Size] , ( CASE WHEN leaf_offset < 1 AND SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) = 0 THEN ( CASE WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) --24 WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN ( CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) ) WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN POWER(2, 15) + CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) END ) END ) AS [Column Length] , ( CASE WHEN SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) = 1 THEN NULL ELSE SUBSTRING(Rowlogcontents, ( ( CASE WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - POWER(2, 15) ELSE CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) END ) - ( CASE WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) --24 WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) --24 WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN POWER(2, 15) + CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) END ) ) + 1, ( CASE WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) --24 WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) > 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN ( CASE WHEN [System_type_id] IN ( 35, 34, 99 ) THEN 16 ELSE 24 END ) --24 WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) < 30000 THEN ABS(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart])) WHEN CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) < 30000 AND ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) > 30000 THEN POWER(2, 15) + CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * leaf_offset * -1 ) - 1, 2)))) - ISNULL(NULLIF(CONVERT(INT, CONVERT(BINARY(2), REVERSE(SUBSTRING([ColumnOffsetArray], ( 2 * ( ( leaf_offset * -1 ) - 1 ) ) - 1, 2)))), 0), [varColumnStart]) END )) END ) AS hex_Value , [Slot ID] , 0 FROM @DeletedRecords A INNER JOIN sys.allocation_units allocunits ON A.[AllocUnitId] = allocunits.[Allocation_Unit_Id] INNER JOIN sys.partitions partitions ON ( allocunits.type IN ( 1, 3 ) AND partitions.hobt_id = allocunits.container_id ) OR ( allocunits.type = 2 AND partitions.partition_id = allocunits.container_id ) INNER JOIN sys.system_internals_partition_columns cols ON cols.partition_id = partitions.partition_id LEFT OUTER JOIN syscolumns ON syscolumns.id = partitions.object_id AND syscolumns.colid = cols.partition_column_id WHERE leaf_offset < 0 UNION/*This part is for fixed data columns*/ SELECT [Row ID] , Rowlogcontents , NAME , cols.leaf_null_bit AS nullbit , leaf_offset , ISNULL(syscolumns.length, cols.max_length) AS [length] , cols.system_type_id , cols.leaf_bit_position AS bitpos , ISNULL(syscolumns.xprec, cols.precision) AS xprec , ISNULL(syscolumns.xscale, cols.scale) AS xscale , SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) AS is_null , ( SELECT TOP 1 ISNULL(SUM(CASE WHEN C.leaf_offset > 1 THEN max_length ELSE 0 END), 0) FROM sys.system_internals_partition_columns C WHERE cols.partition_id = C.partition_id AND C.leaf_null_bit < cols.leaf_null_bit ) + 5 AS [Column value Size] , syscolumns.length AS [Column Length] , CASE WHEN SUBSTRING([nullBitMap], cols.leaf_null_bit, 1) = 1 THEN NULL ELSE SUBSTRING(Rowlogcontents, ( SELECT TOP 1 ISNULL(SUM(CASE WHEN C.leaf_offset > 1 AND C.leaf_bit_position = 0 THEN max_length ELSE 0 END), 0) FROM sys.system_internals_partition_columns C WHERE cols.partition_id = C.partition_id AND C.leaf_null_bit < cols.leaf_null_bit ) + 5, syscolumns.length) END AS hex_Value , [Slot ID] , 0 FROM @DeletedRecords A INNER JOIN sys.allocation_units allocunits ON A.[AllocUnitId] = allocunits.[Allocation_Unit_Id] INNER JOIN sys.partitions partitions ON ( allocunits.type IN ( 1, 3 ) AND partitions.hobt_id = allocunits.container_id ) OR ( allocunits.type = 2 AND partitions.partition_id = allocunits.container_id ) INNER JOIN sys.system_internals_partition_columns cols ON cols.partition_id = partitions.partition_id LEFT OUTER JOIN syscolumns ON syscolumns.id = partitions.object_id AND syscolumns.colid = cols.partition_column_id WHERE leaf_offset > 0 ORDER BY nullbit DECLARE @BitColumnByte AS INT SELECT @BitColumnByte = CONVERT(INT, CEILING(COUNT(*) / 8.0)) FROM @ColumnNameAndData WHERE [System_Type_id] = 104; WITH N1 ( n ) AS ( SELECT 1 UNION ALL SELECT 1 ), N2 ( n ) AS ( SELECT 1 FROM N1 AS X , N1 AS Y ), N3 ( n ) AS ( SELECT 1 FROM N2 AS X , N2 AS Y ), N4 ( n ) AS ( SELECT ROW_NUMBER() OVER ( ORDER BY X.n ) FROM N3 AS X , N3 AS Y ), CTE AS ( SELECT RowLogContents , [nullbit] , [BitMap] = CONVERT(VARBINARY(1), CONVERT(INT, SUBSTRING(( REPLACE(STUFF(( SELECT ',' + ( CASE WHEN [ID] = 0 THEN CONVERT(NVARCHAR(1), ( SUBSTRING(hex_Value, n, 1) % 2 )) ELSE CONVERT(NVARCHAR(1), ( ( SUBSTRING(hex_Value, n, 1) / [Bitvalue] ) % 2 )) END ) --as [nullBitMap] FROM N4 AS Nums JOIN @ColumnNameAndData AS C ON n <= @BitColumnByte AND [System_Type_id] = 104 AND bitpos = 0 CROSS JOIN @bitTable WHERE C.[RowLogContents] = D.[RowLogContents] ORDER BY [RowLogContents] , n ASC FOR XML PATH('') ), 1, 1, ''), ',', '') ), bitpos + 1, 1))) FROM @ColumnNameAndData D WHERE [System_Type_id] = 104 ) UPDATE A SET [hex_Value] = [BitMap] FROM @ColumnNameAndData A INNER JOIN CTE B ON A.[RowLogContents] = B.[RowLogContents] AND A.[nullbit] = B.[nullbit] /**************Check for BLOB DATA TYPES******************************/ DECLARE @Fileid INT DECLARE @Pageid INT DECLARE @Slotid INT DECLARE @CurrentLSN INT DECLARE @LinkID INT DECLARE @Context VARCHAR(50) DECLARE @ConsolidatedPageID VARCHAR(MAX) DECLARE @LCX_TEXT_MIX VARBINARY(MAX) DECLARE @temppagedata TABLE ( [ParentObject] SYSNAME , [Object] SYSNAME , [Field] SYSNAME , [Value] SYSNAME ) DECLARE @pagedata TABLE ( [Page ID] SYSNAME , [File IDS] INT , [Page IDS] INT , [AllocUnitId] BIGINT , [ParentObject] SYSNAME , [Object] SYSNAME , [Field] SYSNAME , [Value] SYSNAME ) DECLARE @ModifiedRawData TABLE ( [ID] INT IDENTITY(1, 1) , [PAGE ID] VARCHAR(MAX) , [FILE IDS] INT , [PAGE IDS] INT , [Slot ID] INT , [AllocUnitId] BIGINT , [RowLog Contents 0_var] VARCHAR(MAX) , [RowLog Length] VARCHAR(50) , [RowLog Len] INT , [RowLog Contents 0] VARBINARY(MAX) , [Link ID] INT DEFAULT ( 0 ) , [Update] INT ) DECLARE Page_Data_Cursor CURSOR FOR /*We need to filter LOP_MODIFY_ROW,LOP_MODIFY_COLUMNS from log for deleted records of BLOB data type& Get its Slot No, Page ID & AllocUnit ID*/ SELECT LTRIM(RTRIM(REPLACE([Description], 'Deallocated', ''))) AS [PAGE ID] , [Slot ID] , [AllocUnitId] , NULL AS [RowLog Contents 0] , NULL AS [RowLog Contents 0] , Context FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE AllocUnitId IN ( SELECT [Allocation_unit_id] FROM sys.allocation_units allocunits INNER JOIN sys.partitions partitions ON ( allocunits.type IN ( 1, 3 ) AND partitions.hobt_id = allocunits.container_id ) OR ( allocunits.type = 2 AND partitions.partition_id = allocunits.container_id ) WHERE object_id = OBJECT_ID('' + @SchemaName_n_TableName + '') ) AND Operation IN ( 'LOP_MODIFY_ROW' ) AND [Context] IN ( 'LCX_PFS' ) AND Description LIKE '%Deallocated%' /*Use this subquery to filter the date*/ AND [TRANSACTION ID] IN ( SELECT DISTINCT [TRANSACTION ID] FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE Context IN ( 'LCX_NULL' ) AND Operation IN ( 'LOP_BEGIN_XACT' ) AND [Transaction Name] = 'DELETE' AND CONVERT(NVARCHAR(11), [Begin Time]) BETWEEN @Date_From AND @Date_To ) GROUP BY [Description] , [Slot ID] , [AllocUnitId] , Context UNION SELECT [PAGE ID] , [Slot ID] , [AllocUnitId] , SUBSTRING([RowLog Contents 0], 15, LEN([RowLog Contents 0])) AS [RowLog Contents 0] , CONVERT(INT, SUBSTRING([RowLog Contents 0], 7, 2)) , Context --,CAST(RIGHT([Current LSN],4) AS INT) AS [Current LSN] FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE AllocUnitId IN ( SELECT [Allocation_unit_id] FROM sys.allocation_units allocunits INNER JOIN sys.partitions partitions ON ( allocunits.type IN ( 1, 3 ) AND partitions.hobt_id = allocunits.container_id ) OR ( allocunits.type = 2 AND partitions.partition_id = allocunits.container_id ) WHERE object_id = OBJECT_ID('' + @SchemaName_n_TableName + '') ) AND Context IN ( 'LCX_TEXT_MIX' ) AND Operation IN ( 'LOP_DELETE_ROWS' ) /*Use this subquery to filter the date*/ AND [TRANSACTION ID] IN ( SELECT DISTINCT [TRANSACTION ID] FROM fn_dump_dblog(NULL, NULL, N'DISK', 1, @Backuppath, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT, DEFAULT) WHERE Context IN ( 'LCX_NULL' ) AND Operation IN ( 'LOP_BEGIN_XACT' ) AND [Transaction Name] = 'DELETE' AND CONVERT(NVARCHAR(11), [Begin Time]) BETWEEN @Date_From AND @Date_To ) /****************************************/ OPEN Page_Data_Cursor FETCH NEXT FROM Page_Data_Cursor INTO @ConsolidatedPageID, @Slotid, @AllocUnitID, @LCX_TEXT_MIX, @LinkID, @Context WHILE @@FETCH_STATUS = 0 BEGIN DECLARE @hex_pageid AS VARCHAR(MAX) /*Page ID contains File Number and page number It looks like 0001:00000130. In this example 0001 is file Number & 00000130 is Page Number & These numbers are in Hex format*/ SET @Fileid = SUBSTRING(@ConsolidatedPageID, 0, CHARINDEX(':', @ConsolidatedPageID)) -- Seperate File ID from Page ID SET @hex_pageid = '0x' + SUBSTRING(@ConsolidatedPageID, CHARINDEX(':', @ConsolidatedPageID) + 1, LEN(@ConsolidatedPageID)) ---Seperate the page ID SELECT @Pageid = CONVERT(INT, CAST('' AS XML).value('xs:hexBinary(substring(sql:variable("@hex_pageid"),sql:column("t.pos")) )', 'varbinary(max)')) -- Convert Page ID from hex to integer FROM ( SELECT CASE SUBSTRING(@hex_pageid, 1, 2) WHEN '0x' THEN 3 ELSE 0 END ) AS t ( pos ) IF @Context = 'LCX_PFS' BEGIN DELETE @temppagedata INSERT INTO @temppagedata EXEC ( 'DBCC PAGE(' + @DataBase_Name + ', ' + @fileid + ', ' + @pageid + ', 1) with tableresults,no_infomsgs;' ); INSERT INTO @pagedata SELECT @ConsolidatedPageID , @fileid , @pageid , @AllocUnitID , [ParentObject] , [Object] , [Field] , [Value] FROM @temppagedata END ELSE IF @Context = 'LCX_TEXT_MIX' BEGIN INSERT INTO @ModifiedRawData SELECT @ConsolidatedPageID , @fileid , @pageid , @Slotid , @AllocUnitID , NULL , 0 , CONVERT(INT, CONVERT(VARBINARY, REVERSE(SUBSTRING(@LCX_TEXT_MIX, 11, 2)))) , @LCX_TEXT_MIX , @LinkID , 0 END FETCH NEXT FROM Page_Data_Cursor INTO @ConsolidatedPageID, @Slotid, @AllocUnitID, @LCX_TEXT_MIX, @LinkID, @Context END CLOSE Page_Data_Cursor DEALLOCATE Page_Data_Cursor DECLARE @Newhexstring VARCHAR(MAX); --The data is in multiple rows in the page, so we need to convert it into one row as a single hex value. --This hex value is in string format INSERT INTO @ModifiedRawData ( [PAGE ID] , [FILE IDS] , [PAGE IDS] , [Slot ID] , [AllocUnitId] , [RowLog Contents 0_var] , [RowLog Length] ) SELECT [Page ID] , [FILE IDS] , [PAGE IDS] , SUBSTRING([ParentObject], CHARINDEX('Slot', [ParentObject]) + 4, ( CHARINDEX('Offset', [ParentObject]) - ( CHARINDEX('Slot', [ParentObject]) + 4 ) ) - 2) AS [Slot ID] , [AllocUnitId] , SUBSTRING(( SELECT REPLACE(STUFF(( SELECT REPLACE(SUBSTRING([Value], CHARINDEX(':', [Value]) + 1, CHARINDEX('?', [Value]) - CHARINDEX(':', [Value])), '?', '') FROM @pagedata C WHERE B.[Page ID] = C.[Page ID] AND SUBSTRING(B.[ParentObject], CHARINDEX('Slot', B.[ParentObject]) + 4, ( CHARINDEX('Offset', B.[ParentObject]) - ( CHARINDEX('Slot', B.[ParentObject]) + 4 ) )) = SUBSTRING(C.[ParentObject], CHARINDEX('Slot', C.[ParentObject]) + 4, ( CHARINDEX('Offset', C.[ParentObject]) - ( CHARINDEX('Slot', C.[ParentObject]) + 4 ) )) AND [Object] LIKE '%Memory Dump%' ORDER BY '0x' + LEFT([Value], CHARINDEX(':', [Value]) - 1) FOR XML PATH('') ), 1, 1, ''), ' ', '') ), 1, 20000) AS [Value] , SUBSTRING(( SELECT '0x' + REPLACE(STUFF(( SELECT REPLACE(SUBSTRING([Value], CHARINDEX(':', [Value]) + 1, CHARINDEX('?', [Value]) - CHARINDEX(':', [Value])), '?', '') FROM @pagedata C WHERE B.[Page ID] = C.[Page ID] AND SUBSTRING(B.[ParentObject], CHARINDEX('Slot', B.[ParentObject]) + 4, ( CHARINDEX('Offset', B.[ParentObject]) - ( CHARINDEX('Slot', B.[ParentObject]) + 4 ) )) = SUBSTRING(C.[ParentObject], CHARINDEX('Slot', C.[ParentObject]) + 4, ( CHARINDEX('Offset', C.[ParentObject]) - ( CHARINDEX('Slot', C.[ParentObject]) + 4 ) )) AND [Object] LIKE '%Memory Dump%' ORDER BY '0x' + LEFT([Value], CHARINDEX(':', [Value]) - 1) FOR XML PATH('') ), 1, 1, ''), ' ', '') ), 7, 4) AS [Length] FROM @pagedata B WHERE [Object] LIKE '%Memory Dump%' GROUP BY [Page ID] , [FILE IDS] , [PAGE IDS] , [ParentObject] , [AllocUnitId]--,[Current LSN] ORDER BY [Slot ID] UPDATE @ModifiedRawData SET [RowLog Len] = CONVERT(VARBINARY(8000), REVERSE(CAST('' AS XML).value('xs:hexBinary(substring(sql:column("[RowLog Length]"),0))', 'varbinary(Max)'))) FROM @ModifiedRawData WHERE [LINK ID] = 0 UPDATE @ModifiedRawData SET [RowLog Contents 0] = CAST('' AS XML).value('xs:hexBinary(substring(sql:column("[RowLog Contents 0_var]"),0))', 'varbinary(Max)') FROM @ModifiedRawData WHERE [LINK ID] = 0 UPDATE B SET B.[RowLog Contents 0] = ( CASE WHEN A.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NOT NULL THEN A.[RowLog Contents 0] + C.[RowLog Contents 0] WHEN A.[RowLog Contents 0] IS NULL AND C.[RowLog Contents 0] IS NOT NULL THEN C.[RowLog Contents 0] WHEN A.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NULL THEN A.[RowLog Contents 0] END ) , B.[Update] = ISNULL(B.[Update], 0) + 1 FROM @ModifiedRawData B LEFT JOIN @ModifiedRawData A ON A.[Page IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 15 + 14, 2)))) AND A.[File IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 19 + 14, 2)))) AND A.[Link ID] = B.[Link ID] LEFT JOIN @ModifiedRawData C ON C.[Page IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 27 + 14, 2)))) AND C.[File IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 31 + 14, 2)))) AND C.[Link ID] = B.[Link ID] WHERE ( A.[RowLog Contents 0] IS NOT NULL OR C.[RowLog Contents 0] IS NOT NULL ) UPDATE B SET B.[RowLog Contents 0] = ( CASE WHEN A.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NOT NULL THEN A.[RowLog Contents 0] + C.[RowLog Contents 0] WHEN A.[RowLog Contents 0] IS NULL AND C.[RowLog Contents 0] IS NOT NULL THEN C.[RowLog Contents 0] WHEN A.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NULL THEN A.[RowLog Contents 0] END ) --,B.[Update]=ISNULL(B.[Update],0)+1 FROM @ModifiedRawData B LEFT JOIN @ModifiedRawData A ON A.[Page IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 15 + 14, 2)))) AND A.[File IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 19 + 14, 2)))) AND A.[Link ID] <> B.[Link ID] AND B.[Update] = 0 LEFT JOIN @ModifiedRawData C ON C.[Page IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 27 + 14, 2)))) AND C.[File IDS] = CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING(B.[RowLog Contents 0], 31 + 14, 2)))) AND C.[Link ID] <> B.[Link ID] AND B.[Update] = 0 WHERE ( A.[RowLog Contents 0] IS NOT NULL OR C.[RowLog Contents 0] IS NOT NULL ) UPDATE @ModifiedRawData SET [RowLog Contents 0] = ( CASE WHEN [RowLog Len] >= 8000 THEN SUBSTRING([RowLog Contents 0], 15, [RowLog Len]) WHEN [RowLog Len] < 8000 THEN SUBSTRING([RowLog Contents 0], 15 + 6, CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([RowLog Contents 0], 15, 6))))) END ) FROM @ModifiedRawData WHERE [LINK ID] = 0 UPDATE @ColumnNameAndData SET [hex_Value] = [RowLog Contents 0] --,A.[Update]=A.[Update]+1 FROM @ColumnNameAndData A INNER JOIN @ModifiedRawData B ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 17, 4)))) = [PAGE IDS] AND CONVERT(INT, SUBSTRING([hex_value], 9, 2)) = B.[Link ID] WHERE [System_Type_Id] IN ( 99, 167, 175, 231, 239, 241, 165, 98 ) AND [Link ID] <> 0 UPDATE @ColumnNameAndData SET [hex_Value] = ( CASE WHEN B.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NOT NULL THEN B.[RowLog Contents 0] + C.[RowLog Contents 0] WHEN B.[RowLog Contents 0] IS NULL AND C.[RowLog Contents 0] IS NOT NULL THEN C.[RowLog Contents 0] WHEN B.[RowLog Contents 0] IS NOT NULL AND C.[RowLog Contents 0] IS NULL THEN B.[RowLog Contents 0] END ) --,A.[Update]=A.[Update]+1 FROM @ColumnNameAndData A LEFT JOIN @ModifiedRawData B ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 5, 4)))) = B.[PAGE IDS] AND B.[Link ID] = 0 LEFT JOIN @ModifiedRawData C ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 17, 4)))) = C.[PAGE IDS] AND C.[Link ID] = 0 WHERE [System_Type_Id] IN ( 99, 167, 175, 231, 239, 241, 165, 98 ) AND ( B.[RowLog Contents 0] IS NOT NULL OR C.[RowLog Contents 0] IS NOT NULL ) UPDATE @ColumnNameAndData SET [hex_Value] = [RowLog Contents 0] --,A.[Update]=A.[Update]+1 FROM @ColumnNameAndData A INNER JOIN @ModifiedRawData B ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 9, 4)))) = [PAGE IDS] AND CONVERT(INT, SUBSTRING([hex_value], 3, 2)) = [Link ID] WHERE [System_Type_Id] IN ( 35, 34, 99 ) AND [Link ID] <> 0 UPDATE @ColumnNameAndData SET [hex_Value] = [RowLog Contents 0] --,A.[Update]=A.[Update]+10 FROM @ColumnNameAndData A INNER JOIN @ModifiedRawData B ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 9, 4)))) = [PAGE IDS] WHERE [System_Type_Id] IN ( 35, 34, 99 ) AND [Link ID] = 0 UPDATE @ColumnNameAndData SET [hex_Value] = [RowLog Contents 0] --,A.[Update]=A.[Update]+1 FROM @ColumnNameAndData A INNER JOIN @ModifiedRawData B ON CONVERT(INT, CONVERT(VARBINARY(MAX), REVERSE(SUBSTRING([hex_value], 15, 4)))) = [PAGE IDS] WHERE [System_Type_Id] IN ( 35, 34, 99 ) AND [Link ID] = 0 UPDATE @ColumnNameAndData SET [hex_value] = 0xFFFE + SUBSTRING([hex_value], 9, LEN([hex_value])) --,[Update]=[Update]+1 WHERE [system_type_id] = 241 CREATE TABLE [#temp_Data] ( [FieldName] VARCHAR(MAX) , [FieldValue] NVARCHAR(MAX) , [Rowlogcontents] VARBINARY(8000) , [Row ID] INT ) INSERT INTO #temp_Data SELECT NAME , CASE WHEN system_type_id IN ( 231, 239 ) THEN LTRIM(RTRIM(CONVERT(NVARCHAR(MAX), hex_Value))) --NVARCHAR ,NCHAR WHEN system_type_id IN ( 167, 175 ) THEN LTRIM(RTRIM(CONVERT(VARCHAR(MAX), hex_Value))) --VARCHAR,CHAR WHEN system_type_id IN ( 35 ) THEN LTRIM(RTRIM(CONVERT(VARCHAR(MAX), hex_Value))) --Text WHEN system_type_id IN ( 99 ) THEN LTRIM(RTRIM(CONVERT(NVARCHAR(MAX), hex_Value))) --nText WHEN system_type_id = 48 THEN CONVERT(VARCHAR(MAX), CONVERT(TINYINT, CONVERT(BINARY(1), REVERSE(hex_Value)))) --TINY INTEGER WHEN system_type_id = 52 THEN CONVERT(VARCHAR(MAX), CONVERT(SMALLINT, CONVERT(BINARY(2), REVERSE(hex_Value)))) --SMALL INTEGER WHEN system_type_id = 56 THEN CONVERT(VARCHAR(MAX), CONVERT(INT, CONVERT(BINARY(4), REVERSE(hex_Value)))) -- INTEGER WHEN system_type_id = 127 THEN CONVERT(VARCHAR(MAX), CONVERT(BIGINT, CONVERT(BINARY(8), REVERSE(hex_Value))))-- BIG INTEGER WHEN system_type_id = 61 THEN CONVERT(VARCHAR(MAX), CONVERT(DATETIME, CONVERT(VARBINARY(8000), REVERSE(hex_Value))), 100) --DATETIME WHEN system_type_id = 58 THEN CONVERT(VARCHAR(MAX), CONVERT(SMALLDATETIME, CONVERT(VARBINARY(8000), REVERSE(hex_Value))), 100) --SMALL DATETIME WHEN system_type_id = 108 THEN CONVERT(VARCHAR(MAX), CONVERT(NUMERIC(38, 20), CONVERT(VARBINARY, CONVERT(VARBINARY(1), xprec) + CONVERT(VARBINARY(1), xscale)) + CONVERT(VARBINARY(1), 0) + hex_Value)) --- NUMERIC WHEN system_type_id = 106 THEN CONVERT(VARCHAR(MAX), CONVERT(DECIMAL(38, 20), CONVERT(VARBINARY, CONVERT(VARBINARY(1), xprec) + CONVERT(VARBINARY(1), xscale)) + CONVERT(VARBINARY(1), 0) + hex_Value)) --- DECIMAL WHEN system_type_id IN ( 60, 122 ) THEN CONVERT(VARCHAR(MAX), CONVERT(MONEY, CONVERT(VARBINARY(8000), REVERSE(hex_Value))), 2) --MONEY,SMALLMONEY WHEN system_type_id = 104 THEN CONVERT(VARCHAR(MAX), CONVERT (BIT, CONVERT(BINARY(1), hex_Value) % 2)) -- BIT WHEN system_type_id = 62 THEN RTRIM(LTRIM(STR(CONVERT(FLOAT, SIGN(CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS BIGINT)) * ( 1.0 + ( CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS BIGINT) & 0x000FFFFFFFFFFFFF ) * POWER(CAST(2 AS FLOAT), -52) ) * POWER(CAST(2 AS FLOAT), ( ( CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS BIGINT) & 0x7ff0000000000000 ) / EXP(52 * LOG(2)) - 1023 ))), 53, LEN(hex_Value)))) --- FLOAT WHEN system_type_id = 59 THEN LEFT(LTRIM(STR(CAST(SIGN(CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS BIGINT)) * ( 1.0 + ( CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS BIGINT) & 0x007FFFFF ) * POWER(CAST(2 AS REAL), -23) ) * POWER(CAST(2 AS REAL), ( ( ( CAST(CONVERT(VARBINARY(8000), REVERSE(hex_Value)) AS INT) ) & 0x7f800000 ) / EXP(23 * LOG(2)) - 127 )) AS REAL), 23, 23)), 8) --Real WHEN system_type_id IN ( 165, 173 ) THEN ( CASE WHEN CHARINDEX(0x, CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'VARBINARY(8000)')) = 0 THEN '0x' ELSE '' END ) + CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'varchar(max)') -- BINARY,VARBINARY WHEN system_type_id = 34 THEN ( CASE WHEN CHARINDEX(0x, CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'VARBINARY(8000)')) = 0 THEN '0x' ELSE '' END ) + CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'varchar(max)') --IMAGE WHEN system_type_id = 36 THEN CONVERT(VARCHAR(MAX), CONVERT(UNIQUEIDENTIFIER, hex_Value)) --UNIQUEIDENTIFIER WHEN system_type_id = 231 THEN CONVERT(VARCHAR(MAX), CONVERT(SYSNAME, hex_Value)) --SYSNAME WHEN system_type_id = 241 THEN CONVERT(VARCHAR(MAX), CONVERT(XML, hex_Value)) --XML WHEN system_type_id = 189 THEN ( CASE WHEN CHARINDEX(0x, CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'VARBINARY(8000)')) = 0 THEN '0x' ELSE '' END ) + CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'varchar(max)') --TIMESTAMP WHEN system_type_id = 98 THEN ( CASE WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 56 THEN CONVERT(VARCHAR(MAX), CONVERT(INT, CONVERT(BINARY(4), REVERSE(SUBSTRING(hex_Value, 3, LEN(hex_Value)))))) -- INTEGER WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 108 THEN CONVERT(VARCHAR(MAX), CONVERT(NUMERIC(38, 20), CONVERT(VARBINARY(1), SUBSTRING(hex_Value, 3, 1)) + CONVERT(VARBINARY(1), SUBSTRING(hex_Value, 4, 1)) + CONVERT(VARBINARY(1), 0) + SUBSTRING(hex_Value, 5, LEN(hex_Value)))) --- NUMERIC WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 167 THEN LTRIM(RTRIM(CONVERT(VARCHAR(MAX), SUBSTRING(hex_Value, 9, LEN(hex_Value))))) --VARCHAR,CHAR WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 36 THEN CONVERT(VARCHAR(MAX), CONVERT(UNIQUEIDENTIFIER, SUBSTRING(( hex_Value ), 3, 20))) --UNIQUEIDENTIFIER WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 61 THEN CONVERT(VARCHAR(MAX), CONVERT(DATETIME, CONVERT(VARBINARY(8000), REVERSE(SUBSTRING(hex_Value, 3, LEN(hex_Value))))), 100) --DATETIME WHEN CONVERT(INT, SUBSTRING(hex_Value, 1, 1)) = 165 THEN '0x' + SUBSTRING(( CASE WHEN CHARINDEX(0x, CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'VARBINARY(8000)')) = 0 THEN '0x' ELSE '' END ) + CAST('' AS XML).value('xs:hexBinary(sql:column("hex_Value"))', 'varchar(max)'), 11, LEN(hex_Value)) -- BINARY,VARBINARY END ) END AS FieldValue , [Rowlogcontents] , [Row ID] FROM @ColumnNameAndData ORDER BY nullbit --Create the column name in the same order to do pivot table. DECLARE @FieldName VARCHAR(MAX) SET @FieldName = STUFF(( SELECT ',' + CAST(QUOTENAME([Name]) AS VARCHAR(MAX)) FROM syscolumns WHERE id = OBJECT_ID('' + @SchemaName_n_TableName + '') FOR XML PATH('') ), 1, 1, '') --Finally did pivot table and get the data back in the same format. SET @sql = 'SELECT ' + @FieldName + ' FROM #temp_Data PIVOT (Min([FieldValue]) FOR FieldName IN (' + @FieldName + ')) AS pvt' EXEC sp_executesql @sql GO |
调用的两种方式
EXEC Recover_Deleted_Data_BylogBackup_Proc '库名','dbo.表名',N'备份文件' --存储过程依然保持着两种调用方式（带日期与不带日期） EXEC Recover_Deleted_Data_BylogBackup_Proc 'sss','dbo.testdelete',N'C:\sss_logBackup_2015_07_04_150756.BAK' GO EXEC Recover_Deleted_Data_BylogBackup_Proc 'sss','dbo.testdelete',N'C:\sss_logBackup_2015_07_04_150756.BAK','2012-06-01','2016-06-30' GO
吾乃代码搬运工，侵联删
分类:
sql / sqlserver
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