2022年1月21日
Is a GUID unique 100% of the time?
摘要： Is a GUID unique 100% of the time? 回答1 While each generated GUID is not guaranteed to be unique, the total number of unique keys (2128 or 3.4×1038) is 阅读全文
posted @ 2022-01-21 22:04 ChuckLu 阅读(34) 评论(0) 推荐(0)
SQL Server discarding SPACE during GROUP BY
摘要： SQL Server discarding SPACE during GROUP BY 问题 Looks like SQL Server (tried on 2008 R2) is doing an RTRIM on columns in GROUP BY clause. Did anyone no 阅读全文
posted @ 2022-01-21 19:40 ChuckLu 阅读(35) 评论(0) 推荐(0)