删除数据库表的语句,SQL语句执行太慢,怎么优化?
答案:1 悬赏:50 手机版
解决时间 2021-05-23 15:08
- 提问者网友:像風在裏
- 2021-05-23 05:01
删除数据库表的语句,SQL语句执行太慢,怎么优化?
最佳答案
- 五星知识达人网友:患得患失的劫
- 2021-05-23 05:12
billsale
where billsale.prodcode = storage;
from storage;已销售数量',
sum(billsale.prod_number) as 'select billsale.prodcode.prodcode
group by billsale
where billsale.prodcode = storage;
from storage;已销售数量',
sum(billsale.prod_number) as 'select billsale.prodcode.prodcode
group by billsale
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