文章目录

GROUP BY 语法

数据库结构

SQL GROUP BY 用法-园艺资材批发美乐棵,奥绿肥,花多多,赤玉土,品式泥炭

SQL GROUP BY with COUNT() function

SQL GROUP BY with SUM() function

SQL GROUP BY 用法-园艺资材批发美乐棵,奥绿肥,花多多,赤玉土,品式泥炭

SQL GROUP BY with COUNT() and SUM() function

SQL GROUP BY 用法-园艺资材批发美乐棵,奥绿肥,花多多,赤玉土,品式泥炭

SQL GROUP BY on more than one columns

SQL GROUP BY 用法-园艺资材批发美乐棵,奥绿肥,花多多,赤玉土,品式泥炭

SQL GROUP BY with WHERE clause

SQL GROUP BY with HAVING clause

SQL GROUP BY 用法-园艺资材批发美乐棵,奥绿肥,花多多,赤玉土,品式泥炭

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