djmax2 psp下载:select * from [wq_user] where useremail='"&trim(request("useremail"))为什么要用[ ]号啊?谁能帮我
来源:百度文库 编辑:查人人中国名人网 时间:2024/09/21 09:27:42
不明白啊
完全可以不用。用[]是当你的表名或字段名与SQL关键字一样时需要加上。
select from where like
select *from 部系表
select sum(*) from...where.....
select count(*) from 学生
select * from table1 where id in (select id from table2),
SELECT SUM(工资) FROM 职工
select * from v$bgprocess 是什么意思
select * from (select a.*,b.kczwmc kcmc from (select kcdm,max(McjN) Mcj,Max(kcxz) kcxz from (select
selece *from table1,table2与select*from table1 union select*from table2的区别
"select count(*) Mycount from books "