文章继续 桦仔兄的文章 将表里的数据批量生成INSERT语句的存储过程 增强版 继续增强...
本来打算将该内容回复于桦仔兄的文章的下面的，但是不知为何博客园就是不让提交！....
所以在这里贴出来吧，算作继续增加文章中解决的：根据查询条件自动生成插入脚本的需求，其实这种需求还是蛮常见的。
本文着重解决了文中的脚本的schema问题，给调整了下，现在脚本能自动识别出不同的schema下同名的表的语句
修改后脚本如下：
-- Author: <桦仔>-- Blog: <http://www.cnblogs.com/lyhabc/>-- Create date: <2014/10/18>-- Description: <根据查询条件导出表数据的insert脚本>-- =============================================ALTER PROCEDURE InsertGenerator ( @tableName NVARCHAR(MAX), @whereClause NVARCHAR(MAX) )AS --Then it includes a cursor to fetch column specific information (column name and the data type thereof) --from information_schema.columns pseudo entity and loop through for building the INSERT and VALUES clauses --of an INSERT DML statement. DECLARE @string NVARCHAR(MAX) --for storing the first half of INSERT statement DECLARE @stringData NVARCHAR(MAX) --for storing the data (VALUES) related statement DECLARE @dataType NVARCHAR(MAX) --data types returned for respective columns DECLARE @schemaName NVARCHAR(MAX) --schema name returned from sys.schemas DECLARE @schemaNameCount int--shema count DECLARE @QueryString NVARCHAR(MAX) -- provide for the whole query, set @QueryString=' ' --如果有多个schema，选择其中一个schema SELECT @schemaNameCount=COUNT(*) FROM sys.tables t INNER JOIN sys.schemas s ON t.schema_id = s.schema_id WHERE t.name = @tableName WHILE(@schemaNameCount>0) BEGIN --如果有多个schema，依次指定 select @schemaName = name from ( SELECT ROW_NUMBER() over(order by s.schema_id) RowID,s.name FROM sys.tables t INNER JOIN sys.schemas s ON t.schema_id = s.schema_id WHERE t.name = @tableName ) as v where RowID=@schemaNameCount --Declare a cursor to retrieve column specific information --for the specified table DECLARE cursCol CURSOR FAST_FORWARD FOR SELECT column_name , data_type FROM information_schema.columns WHERE table_name = @tableName AND table_schema = @schemaName OPEN cursCol SET @string = 'INSERT INTO [' + @schemaName + '].[' + @tableName + '](' SET @stringData = '' DECLARE @colName NVARCHAR(500) FETCH NEXT FROM cursCol INTO @colName, @dataType PRINT @schemaName PRINT @colName IF @@fetch_status <> 0 BEGIN PRINT 'Table ' + @tableName + ' not found, processing skipped.' CLOSE curscol DEALLOCATE curscol RETURN END WHILE @@FETCH_STATUS = 0 BEGIN IF @dataType IN ( 'varchar', 'char', 'nchar', 'nvarchar' ) BEGIN SET @stringData = @stringData + '''''''''+ isnull(' + @colName + ','''')+'''''',''+' END ELSE IF @dataType IN ( 'text', 'ntext' ) --if the datatype --is text or something else BEGIN SET @stringData = @stringData + '''''''''+ isnull(cast(' + @colName + ' as nvarchar(max)),'''')+'''''',''+' END ELSE IF @dataType = 'money' --because money doesn't get converted --from varchar implicitly BEGIN SET @stringData = @stringData + '''convert(money,''''''+ isnull(cast(' + @colName + ' as nvarchar(max)),''0.0000'')+''''''),''+' END ELSE IF @dataType = 'datetime' BEGIN SET @stringData = @stringData + '''convert(datetime,''''''+ isnull(cast(' + @colName + ' as nvarchar(max)),''0'')+''''''),''+' END ELSE IF @dataType = 'image' BEGIN SET @stringData = @stringData + '''''''''+ isnull(cast(convert(varbinary,' + @colName + ') as varchar(6)),''0'')+'''''',''+' END ELSE --presuming the data type is int,bit,numeric,decimal BEGIN SET @stringData = @stringData + '''''''''+ isnull(cast(' + @colName + ' as nvarchar(max)),''0'')+'''''',''+' END SET @string = @string + '[' + @colName + ']' + ',' FETCH NEXT FROM cursCol INTO @colName, @dataType END--After both of the clauses are built, the VALUES clause contains a trailing comma which needs to be replaced with a single quote. The prefixed clause will only face removal of the trailing comma. DECLARE @Query NVARCHAR(MAX) -- provide for the whole query, -- you may increase the size PRINT @whereClause IF ( @whereClause IS NOT NULL AND @whereClause <> '' ) BEGIN SET @query = 'SELECT ''' + SUBSTRING(@string, 0, LEN(@string)) + ') VALUES(''+ ' + SUBSTRING(@stringData, 0, LEN(@stringData) - 2) + '''+'')'' FROM ' +@schemaName+'.'+ @tableName + ' WHERE ' + @whereClause PRINT @query -- EXEC sp_executesql @query --load and run the built query--Eventually, close and de-allocate the cursor created for columns information. END ELSE BEGIN SET @query = 'SELECT ''' + SUBSTRING(@string, 0, LEN(@string)) + ') VALUES(''+ ' + SUBSTRING(@stringData, 0, LEN(@stringData) - 2) + '''+'')'' FROM ' + @schemaName+'.'+ @tableName END CLOSE cursCol DEALLOCATE cursCol SET @schemaNameCount=@schemaNameCount-1 IF(@schemaNameCount=0) BEGIN SET @QueryString=@QueryString+@query END ELSE BEGIN SET @QueryString=@QueryString+@query+' UNION ALL ' END PRINT convert(varchar(max),@schemaNameCount)+'---'+@QueryString END EXEC sp_executesql @QueryString --load and run the built query--Eventually, close and de-allocate the cursor created for columns information.
1、测试脚本如下：
INSERT INTO test1.[customer]([city],[region]) VALUES('2','3')InsertGenerator 'customer', null
效果如下：
2、增加筛选条件
InsertGenerator 'customer', 'city=1'
其它内容可以参照桦仔兄的原文章地址。