IF OBJECT_ID('DataAsInsCommand') IS NOT NULL DROP PROC DataAsInsCommand
GO
SET QUOTED_IDENTIFIER OFF
GO
CREATE PROC DataAsInsCommand (
@TableList varchar (200))
AS
SET NOCOUNT ON
DECLARE @position int, @exec_str varchar (2000), @TableName varchar (30)
DECLARE @name varchar(128), @xtype int, @status tinyint, @IsIdentity tinyint
SELECT @TableList = @TableList + ','
SELECT @IsIdentity = 0
SELECT @position = PATINDEX('%,%', @TableList)
WHILE (@position <> 0)
BEGIN
SELECT @TableName = SUBSTRING(@TableList, 1, @position - 1)
SELECT @TableList = STUFF(@TableList, 1, PATINDEX('%,%', @TableList), '')
SELECT @position = PATINDEX('%,%', @TableList)
SELECT @exec_str = 'DECLARE fetch_cursor CURSOR FOR '
+ 'SELECT name, xtype, status FROM syscolumns WHERE id = object_id("'
+ @TableName + '")'
EXEC (@exec_str)
OPEN fetch_cursor
FETCH fetch_cursor INTO @name, @xtype, @status
IF (@status & 0x80) <> 0
BEGIN
SELECT @IsIdentity = 1
SELECT 'SET IDENTITY_INSERT ' + @TableName + ' ON'
SELECT 'GO'
END
SELECT @exec_str = "SELECT 'INSERT INTO " + @TableName + " VALUES (' + "
--text or ntext
IF (@xtype = 35) OR (@xtype = 99)
SELECT @exec_str = @exec_str + '''"None yet"'''
ELSE
--image
IF (@xtype = 34)
SELECT @exec_str = @exec_str + '"' + '0xFFFFFFFF' + '"'
ELSE
--smalldatetime or datetime
IF (@xtype = 58) OR (@xtype = 61)
SELECT @exec_str = @exec_str + ' + ''"'' + ' + ' + CONVERT(varchar,' + @name + ',101)' + ' + ''"'''
ELSE
--varchar or char or nvarchar or nchar
IF (@xtype = 167) OR (@xtype = 175) OR (@xtype = 231) OR (@xtype = 239)
SELECT @exec_str = @exec_str + '''"'' + ' + @name + ' + ''"'''
ELSE
--uniqueidentifier
IF (@xtype = 36)
SELECT @exec_str = @exec_str + ' + ''"'' + ' + ' + CONVERT(varchar(255),' + @name + ')' + ' + ''"'''
ELSE
--binary or varbinary
IF (@xtype = 173) OR (@xtype = 165)
SELECT @exec_str = @exec_str + '"' + '0x0' + '"'
ELSE
SELECT @exec_str = @exec_str + 'ISNULL(CONVERT(varchar,' + @name + '), "null")'
WHILE @@FETCH_STATUS <> -1
BEGIN
FETCH fetch_cursor INTO @name, @xtype, @status
IF (@@FETCH_STATUS = -1) BREAK
IF (@status & 0x80) <> 0
BEGIN
SELECT @IsIdentity = 1
SELECT 'SET IDENTITY_INSERT ' + @TableName + ' ON'
SELECT 'GO'
END
--text or ntext
IF (@xtype = 35) OR (@xtype = 99)
SELECT @exec_str = @exec_str + ' + '',''' + ' + ''"None yet"'''
ELSE
--image
IF (@xtype = 34)
SELECT @exec_str = @exec_str + ' + "," + ' + '"' + '0xFFFFFFFF' + '"'
ELSE
--smalldatetime or datetime
IF (@xtype = 58) OR (@xtype = 61)
SELECT @exec_str = @exec_str + ' + ","' + ' + ''"'' + ' + ' + CONVERT(varchar,' + @name + ',101)' + ' + ''"'''
ELSE
--varchar or char or nvarchar or nchar
IF (@xtype = 167) OR (@xtype = 175) OR (@xtype = 231) OR (@xtype = 239)
SELECT @exec_str = @exec_str + ' + '',''' + ' + ''"'' + ' + @name + ' + ''"'''
ELSE
--uniqueidentifier
IF (@xtype = 36)
SELECT @exec_str = @exec_str + ' + ","' + ' + ''"'' + ' + ' + CONVERT(varchar(255),' + @name + ')' + ' + ''"'''
ELSE
--binary or varbinary
IF (@xtype = 173) OR (@xtype = 165)
SELECT @exec_str = @exec_str + ' + "," + ' + '"' + '0x0' + '"'
ELSE
SELECT @exec_str = @exec_str + ' + ","' + ' + ISNULL(CONVERT(varchar,' + @name + '), "null")'
END
CLOSE fetch_cursor
DEALLOCATE fetch_cursor
SELECT @exec_str = @exec_str + '+ ")" FROM ' + @TableName
SELECT @exec_str
EXEC(@exec_str)
SELECT 'GO'
IF @IsIdentity = 1
BEGIN
SELECT @IsIdentity = 0
SELECT 'SET IDENTITY_INSERT ' + @TableName + ' OFF'
SELECT 'GO'
END
END
GO
研究生成SQL脚本
本文介绍了一种使用SQL脚本动态生成批量插入语句的方法。通过存储过程解析传入的表名列表,并针对每张表创建对应的INSERT语句。该方法支持多种数据类型,并考虑了标识字段的处理。

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