批量插入语句
Mysql:
INSERT into logininfo(username,password,state,userType)values ('kenho','123456',1,2),('kenho','123456',1,2)
Oracle:
insert all
into logininfo values(1,'kenho','123456',1,2)
into logininfo values(2,'kenho','123456',1,2)
into logininfo values(3,'kenho','123456',1,2)
select 1 from dual
日期格式化
Mysql:
SELECT DATE_FORMAT('2011-09-20 08:30:45', '%Y-%d-%m')
Oracle:
SELECT to_date('2011-09-20 08:30:45', 'yyyy-MM-dd hh24:mi:ss') FROM dual;
空判断
Mysql:
select ifnull(max(cast(${CoulmnValueName} as unsigned int)),0) from ${tableName}
Oracle:
select nvl(max(to_number(${CoulmnValueName})),0) from ${tableName}