SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2
SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2
sql根据已有的表建新表:create table tab_new as select col1,col2… from
SQL 语句 "SELECT * FROM {{table}} WHERE `fleet_end_time`
create table party_centification_bak as select * from party_
sql 语句中 select * from table where 2=1 的where2=1有什么意思和作用
ms sql :select * from (select *from b) as xxx where 和 select
SQL语句理解 select * from B where (select count(1) as num from A
String sql = "select * from tb_consumer where account='" + a
SQL >select count(*) from Teacher where teacherCode=? and te
sql="select discount_value from shop_discount where discount
请教sql语句,像select …from wsdy_zb t where t.id =:id order by no
$sql="SELECT count(*) as pcount FROM news" 和$sql = "UPDATE a