纸上得来终觉浅,绝知此事要躬行。

 

什么是 BULK INSERT

MSDN的解释:

在 SQL Server 中以用户指定的格式将数据文件导入到数据库表或视图中。

语法:

BULK INSERT 
   [ database_name . [ schema_name ] . | schema_name . ] [ table_name | view_name ] 
      FROM 'data_file' 
     [ WITH 
    ( 
   [ [ , ] BATCHSIZE = batch_size ] 
   [ [ , ] CHECK_CONSTRAINTS ] 
   [ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ] 
   [ [ , ] DATAFILETYPE = 
      { 'char' | 'native'| 'widechar' | 'widenative' } ] 
   [ [ , ] FIELDTERMINATOR = 'field_terminator' ] 
   [ [ , ] FIRSTROW = first_row ] 
   [ [ , ] FIRE_TRIGGERS ] 
   [ [ , ] FORMATFILE = 'format_file_path' ] 
   [ [ , ] KEEPIDENTITY ] 
   [ [ , ] KEEPNULLS ] 
   [ [ , ] KILOBYTES_PER_BATCH = kilobytes_per_batch ] 
   [ [ , ] LASTROW = last_row ] 
   [ [ , ] MAXERRORS = max_errors ] 
   [ [ , ] ORDER ( { column [ ASC | DESC ] } [ ,...n ] ) ] 
   [ [ , ] ROWS_PER_BATCH = rows_per_batch ] 
   [ [ , ] ROWTERMINATOR = 'row_terminator' ] 
   [ [ , ] TABLOCK ] 
   [ [ , ] ERRORFILE = 'file_name' ] 
    )]

简单应用:

表结构如下:

CREATE TABLE [dbo].[Types] (
    [Id]        INT          IDENTITY (1, 1) NOT NULL,
    [TypeName]  VARCHAR (50) DEFAULT ('') NULL,
    [TypeValue] INT          DEFAULT ((0)) NULL,
    PRIMARY KEY CLUSTERED ([Id] ASC)
);

要导入的文本文件(D:\a.txt)内容如下:

1,Add,1
2,Modify,2
3,Delete,4

导入命令:

BULK INSERT dbo.Types FROM 'D:a.txt' WITH(FIELDTERMINATOR=',')

FIELDTERMINATOR : 表示字段之间的分隔符(默认值为 \t 制表符);

ROWTERMINATOR : 表示行之间的分隔符(默认值为 \r\n 换行符)。

其它参数请参考 MSDN 注解。

 

posted on 2014-08-12 11:34  JRoger  阅读(651)  评论(0编辑  收藏  举报

导航