例子一
1 SELECT COUNT(*) FROM 2 ( 3 SELECT [PersonID] 4 FROM [tbiz_AssScore] 5 WHERE [ProjectID]=65 6 GROUP BY PersonID 7 ) M
语法说明: 1).FROM后面跟小括号; 2)第7行小括号后面"空格"写上一字母标识
zhuji 2016-11-29 10:03 原文
1 SELECT COUNT(*) FROM 2 ( 3 SELECT [PersonID] 4 FROM [tbiz_AssScore] 5 WHERE [ProjectID]=65 6 GROUP BY PersonID 7 ) M
语法说明: 1).FROM后面跟小括号; 2)第7行小括号后面"空格"写上一字母标识