摘要:
select sum(field1) as r from table1r is null如何让r变成0select isnull(sum(field1),0) as r from table1r 不在是null,而是0 阅读全文
posted @ 2008-08-26 17:08 刘政道 阅读(788) 评论(1) 推荐(0) 编辑
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摘要:
select sum(field1) as r from table1r is null如何让r变成0select isnull(sum(field1),0) as r from table1r 不在是null,而是0 阅读全文
posted @ 2008-08-26 17:08 刘政道 阅读(788) 评论(1) 推荐(0) 编辑 |
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