関連ワード:  how to use aggregate function in sql    how to use aggregate function in sql without group by    how to use aggregate function in sql where clause    how to use aggregate function in sql server    how to use sum function in sql    how to use sum function in sql with inner join    how to use sum function in sql for multiple columns    how to use sum function in sql for multiple rows    how to use sum function in sql server    how to use sum function in sql query