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哪位大侠知道怎么写orAClE sql 循环语句

循环结构 简单循环【经常使用】:loop……end loop 语法格式: loop plsql语句; [exit when 条件;] end loop; 说明:exit when 条件,表示当条件成立时退出。 范例:求1~100的和。 declare i number; sum1 number; begin i:=1; sum1:=0; loop exit ...

SELECT TO_CHAR('24343455677888.45','FM999,999,999,999,990.00') FROM DUAL;

declare sql_tem Varchar2(4000); a number; b number; i number; begin a := 1; for i in 1 .. 3 loop b := a + 4; sql_tem := 'insert into A2 (ID,NAME) (select ID,NAME from A1 WHERE ROWNUM between :1 and :2)'; EXECUTE IMMEDIATE sql_t...

这种sql网上可以找到很多,给你举个例子: select * from (select e.* ,rownum rn from (select * from emp) e) where rn>=5 and rn

咦,刚有回答你一个问题。你这个是只判断table1.number>table2.number情况下才update。其他情况不考虑。 update table1 t3 set t3.number = (select number from (select t1.id, t1.number - t2.number number from table1 t1, table2 t2 where ...

首先你要明确你要删什么东西 如果是删除一个表里面的数据,那你要明确是全表删除还是只删除某一部分数据 表删除语句: delete from 表名where 要删除的条件; 如果是全表删除可以这样写:delete from 表名,或者直接裁剪表 truncate table 表名;

可以使用 execute immediate --FYI --execute immediate不支持多行返回,如果需要可新建临时表 declare v_source_sql varchar2(1000); v_union_sql varchar2(1000); begin select column_name into v_source_sql from table_name ;--get source ...

insert into tonglu.tb_putoutconfirm(transfer_type,package_num,handledby,username,tms_service_code,batch,weight)values(?,?,?,?,?,tonglu.batch_seq.nextval,?); 按位置对应一下,batch在段在倒数第二位,所以那个地方直接引用序列 其他你...

select t.sid,t.hobby from (select row_number() over (partition by sid order by hobby desc ) as num,sid,hobby from info) t where t.num

试试这个: select t.* from emp t where t.id like case when id_val is null then '%' else '%id_val%' end and t.name like case when name_val is null then '%' else '%name_val%' end and t.job like case when job_val is null then '%' ...

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