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根据基本表结构及其数据生成 INSERT ... 的 SQL

王朝mssql·作者佚名  2006-01-08
窄屏简体版  字體: |||超大  

create proc spGenInsertSQL

@TableName as varchar(100)

as

--declare @TableName varchar(100)

--set @TableName = 'orders'

--set @TableName = 'eeducation'

DECLARE xCursor CURSOR FOR

SELECT name,xusertype

FROM syscolumns

WHERE (id = OBJECT_ID(@TableName))

declare @F1 varchar(100)

declare @F2 integer

declare @SQL varchar(8000)

set @sql ='SELECT ''INSERT INTO ' + @TableName + ' VALUES('''

OPEN xCursor

FETCH xCursor into @F1,@F2

WHILE @@FETCH_STATUS = 0

BEGIN

set @sql =@sql +

+ case when @F2 IN (35,58,99,167,175,231,239,61) then ' + case when ' + @F1 + ' IS NULL then '''' else '''''''' end + ' else '+' end

+ 'replace(ISNULL(cast(' + @F1 + ' as varchar),''NULL''),'''''''','''''''''''')'

+ case when @F2 IN (35,58,99,167,175,231,239,61) then ' + case when ' + @F1 + ' IS NULL then '''' else '''''''' end + ' else '+' end

+ char(13) + ''','''

FETCH NEXT FROM xCursor into @F1,@F2

END

CLOSE xCursor

DEALLOCATE xCursor

set @sql = left(@sql,len(@sql) - 5) + ' + '')'' FROM ' + @TableName

print @sql

exec (@sql)

第二版:2003.03.08

alter proc SPGenInsertSQL (@tablename varchar(256))

as

begin

declare @sql varchar(8000)

declare @sqlValues varchar(8000)

set @sql =' ('

set @sqlValues = 'values (''+'

select @sqlValues = @sqlValues + cols + ' + '','' + ' ,@sql = @sql + '[' + name + '],'

from

(select case

when xtype in (48,52,56,59,60,62,104,106,108,122,127)

then 'case when '+ name +' is null then ''NULL'' else ' + 'cast('+ name + ' as varchar)'+' end'

when xtype in (58,61)

then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast('+ name +' as varchar)'+ '+'''''''''+' end'

when xtype in (167)

then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'

when xtype in (231)

then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'

when xtype in (175)

then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end'

when xtype in (239)

then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end'

else '''NULL'''

end as Cols,name

from syscolumns

where id = object_id(@tablename)

) T

set @sql ='select ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename

--print @sql

exec (@sql)

end

第三版: 2003.3.9

ALTER proc SPGenInsertSQL (@tablename varchar(256))

as

begin

declare @sql varchar(8000)

declare @sqlValues varchar(8000)

set @sql =' ('

set @sqlValues = 'values (''+'

select @sqlValues = @sqlValues + cols + ' + '','' + ' ,@sql = @sql + '[' + name + '],'

from

(select case

when xtype in (48,52,56,59,60,62,104,106,108,122,127)

then 'case when '+ name +' is null then ''NULL'' else ' + 'cast('+ name + ' as varchar)'+' end'

when xtype in (58,61)

then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast('+ name +' as varchar)'+ '+'''''''''+' end'

when xtype in (167,175)

then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+''''''''' + ' end'

when xtype in (231,239)

then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+''''''''' + ' end'

else '''NULL'''

end as Cols,name

from syscolumns

where id = object_id(@tablename) and autoval is null

) T

set @sql ='select ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename

print @sql

exec (@sql)

/*

select *

from syscolumns

where id = object_id('test') and autoval is null

*/

end

 
 
 
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