BEGIN
WITH tx AS
(
SELECT a.object_id
,b.name AS schema_name
,a.name AS table_name
,c.name as ix_name
,c.is_unique AS ix_unique
,c.type_desc AS ix_type_desc
,d.index_column_id
,d.is_included_column
,e.name AS column_name
,f.name AS fg_name
,d.is_descending_key AS is_descending_key
,c.is_primary_key
,c.is_unique_constraint
FROM sys.tables AS a
INNER JOIN sys.schemas AS b ON a.schema_id = b.schema_id AND a.is_ms_shipped = 0
INNER JOIN sys.indexes AS c ON a.object_id = c.object_id
INNER JOIN sys.index_columns AS d ON d.object_id = c.object_id AND d.index_id = c.index_id
INNER JOIN sys.columns AS e ON e.object_id = d.object_id AND e.column_id = d.column_id
INNER JOIN sys.data_spaces AS f ON f.data_space_id = c.data_space_id
)
SELECT
Drop_Index = CASE WHEN (a.is_primary_key = 1 OR a.is_unique_constraint = 1)
THEN 'ALTER TABLE ' + a.table_name + ' DROP CONSTRAINT ' + a.ix_name
ELSE 'DROP INDEX ' + a.ix_name collate SQL_Latin1_General_CP1_CI_AS + ' ON ' + a.schema_name + '.' + a.table_name END
,Create_Index = CASE WHEN (a.is_primary_key = 1 OR a.is_unique_constraint = 1)
THEN 'ALTER TABLE ' + a.table_name + ' ADD CONSTRAINT ' + a.ix_name
+ CASE WHEN a.is_primary_key = 1 THEN ' PRIMARY KEY' ELSE ' UNIQUE' END + '(' + indexColumns.ix_index_column_name + ')'
ELSE 'CREATE ' + CASE WHEN a.ix_unique = 1 THEN 'UNIQUE ' ELSE '' END
+ a.ix_type_desc + ' INDEX ' + a.ix_name collate SQL_Latin1_General_CP1_CI_AS + ' ON ' + a.schema_name
+ '.' + a.table_name + '(' + indexColumns.ix_index_column_name + ')'
+ CASE WHEN IncludeIndex.ix_included_column_name IS NOT NULL THEN ' INCLUDE (' + IncludeIndex.ix_included_column_name + ')' ELSE '' END
+ ' ON [' + a.fg_name +']' END
,CASE WHEN a.ix_unique = 1 THEN 'UNIQUE' END AS ix_unique
,a.ix_type_desc
,a.ix_name
,a.schema_name
,a.table_name
,indexColumns.ix_index_column_name
,IncludeIndex.ix_included_column_name
,a.fg_name
,a.is_primary_key
,a.is_unique_constraint
FROM
(
SELECT DISTINCT
ix_unique
,ix_type_desc
,ix_name
,schema_name
,table_name
,fg_name
,is_primary_key
,is_unique_constraint
FROM tx
) AS a
OUTER APPLY
(
SELECT ix_index_column_name
= STUFF((
SELECT ',' + column_name + CASE WHEN is_descending_key = 1 THEN ' DESC' ELSE '' END
FROM tx AS b
WHERE schema_name = a.schema_name
AND table_name=a.table_name
AND ix_name=a.ix_name
AND ix_type_desc=a.ix_type_desc
AND fg_name=a.fg_name
AND is_included_column=0
ORDER BY index_column_id
FOR XML PATH('')
),1,1,'')
)IndexColumns
OUTER APPLY
(
SELECT ix_included_column_name
= STUFF((
SELECT ',' + column_name
FROM tx AS b
WHERE schema_name = a.schema_name
AND table_name=a.table_name
AND ix_name=a.ix_name
AND ix_type_desc=a.ix_type_desc
AND fg_name=a.fg_name
AND is_included_column=1
ORDER BY index_column_id
FOR XML PATH('')
), 1,1,'')
)IncludeIndex
ORDER BY a.schema_name,a.table_name,a.ix_name;
END
