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在单一查询中查阅400个表格
原标题:Accessing 400 tables in a single query
  • 时间:2011-10-16 05:33:26
  •  标签:
  • sql

我想从多个表格中删除有条件的内容。

DELETE
FROM table_1
WHERE lst_mod_ymdt =  2011-01-01 

The problem is that, the number of table is 400, from table_1 to table_400. Can I apply the query to all the tables in a single query?

问题回答

如果你重新使用2005年服务器,然后你可以尝试像这样的东西(其他版本和RDMS也有类似的办法这样做):

DECLARE @sql VARCHAR(MAX)

SET @sql = (SELECT  DELETE FROM [  + REPLACE(Name,     ,      ) +  ] WHERE lst_mod_ymdt =     + @lst_mod_ymdt +    ;  FROM sys.tables WHERE Name LIKE  table_%  FOR XML PATH(  ))

--PRINT @sql;
EXEC ( @sql );

和总是有活力的缩略语一样,记住要躲避<条码>>。

如果你说的是表341,其中tt有lst_mod_ymdt栏,则这很可能被搁置。





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