10 2014 档案

T-SQL 位运算 sum 写法
摘要：select cast(sum(sheettype & 8) as bit) * 8 + cast(sum(sheettype & 4) as bit) * 4 + cast(sum(sheettype & 2) as bit) * 2 + cast(sum(sheettype & 1) as bi... 阅读全文
posted @ 2014-10-23 13:13 Tom.汤 阅读(281) 评论(0) 推荐(0) 编辑

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