mysql關聯表更改表多個字段值

關聯表更改某乙個字段值：更改部分資料，外層where條件控制更改記錄的數量

begin

;update sturgeon_summary s set s.set_date = (select set_date from sturgeon_set_pay p where s.set_no = p.set_no ) where s.merchant_no ="300900100390
" ;select
*from sturgeon_summary where merchant_no ="300900100390
";rollback;--
commit;

關聯表更改某乙個字段值：更改全部記錄

begin

;update sturgeon_summary s set s.merchant_no = (select merchant_no from sturgeon_set_pay p where s.set_no = p.set_no );
select
*from
sturgeon_summary;
rollback;--
commit;

關聯表更改多個字段值：

begin

;update sturgeon_summary s set s.set_date = (select set_date from sturgeon_set_pay p where s.set_no = p.set_no ),s.merchant_no = (select merchant_no from sturgeon_set_pay p where s.set_no = p.set_no )  where s.set_no =
"m2201904290100100010039093733702";
select
*from
sturgeon_summary;
rollback;--
commit;

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