自動生成INSERT語句的SQL存儲過程
在SQL Server數(shù)據(jù)庫中,如果需要讓INSERT語句自動生成,應(yīng)該采用何種方法呢?下面就將為您介紹自動生成INSERT語句的SQL存儲過程,供您參考。
這是建立一個存儲過程,通過執(zhí)行這個存儲過程,將指定的數(shù)據(jù)表中的數(shù)據(jù)導(dǎo)成Insert語句形式
--這是一個可以將表中的數(shù)據(jù)自動生成INSERT語句的存儲過程
--有個BUG,如果是自動增長列,數(shù)據(jù)也會被插入
--在查詢分析器中執(zhí)行完成后,可以從執(zhí)行結(jié)果中自制出SQL腳本。
IF OBJECT_ID('spGenInsertSQL','P') IS NOT NULL
DROP PROC spGenInsertSQL
GO
CREATE 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
GO
執(zhí)行如下語句測試結(jié)果:
exec spGenInsertSQL test
【編輯推薦】
通過執(zhí)行多條SQL語句實現(xiàn)數(shù)據(jù)庫事務(wù)