insert into a select * from b 和select * into a from b 这两个语句是

insert into a select * from b 和select * into a from b 这两个语句是 select * into b from a where 11 insert into a (select * from b)和把记录取出来然后分别insert那个的效率高? 数据库中select into from 和 insert into select的区别 select Insert into和Insert into select的区别 select * from a union select * from b 能详细说下么 SQL语句理解 select * from B where (select count(1) as num from A insert into REC_OVER(ORG_ID) select '1' from dual where not PLSQL中复制表select * into b from a where 11这句话中where 11在这里怎么理解 select * into dept2 from dept insert into select 语句,需要多insert一个字段怎么办 select * into a from a..a 请问,这句中的a....有什么用