Question

我使用SUM＆amp ;;进行MYSQL查询CROSS JOIN，工作正常。

MYSQL QUERY：

SELECT SUM(totexec/(pass_count+fail_count))/d.total  COUNT FROM test_schedule CROSS JOIN ( SELECT COUNT(*) total FROM test_schedule WHERE project='JupiterQA' ) d WHERE project='JupiterQA'

但是我试图在MSSQL中执行相同的查询，显示“列'd.total'在选择列表中无效，因为它不包含在聚合函数或GROUP BY子句中。”

之后我在查询结尾处添加了GROUP BY a.total，错误是：除以遇到的零错误。

我在所有表中都有记录，查询是错误的吗？

Answer 1

我不问你为什么使用交叉连接：D 只需在查询中添加group by子句

SELECT SUM(totexec(pass_count+fail_count))d.total  COUNT FROM test_schedule CROSS JOIN ( SELECT COUNT(*) total FROM test_schedule WHERE project='JupiterQA' ) d WHERE project='JupiterQA' GROUP BY d.total

Answer 2

这应该等同于MYSQL查询：

SELECT tSum / dTotal AS COUNT
FROM (
   SELECT SUM(totexec / (pass_count+fail_count)) AS tSum, d.total AS dTotal 
   FROM test_schedule 
   CROSS JOIN ( SELECT COUNT(*) total 
                FROM test_schedule 
                WHERE project='JupiterQA' ) d 
   WHERE project='JupiterQA' ) t

我认为不需要CROSS JOIN。这也应该做的工作：

SELECT tSum / ( SELECT COUNT(*) 
                FROM test_schedule 
                WHERE project='JupiterQA' ) AS COUNT
FROM (
   SELECT SUM(totexec / (pass_count+fail_count)) AS tSum 
   FROM test_schedule 
   WHERE project='JupiterQA' ) t

SUM（），CROSS JOIN查询

2 个答案: