select * into ##TmpPosTotR142013386297 from ##TmpPosTotR242013386297 where 1=2这个句子1肯定不等于2啊,为什么要说where 1=2?一定不一样啊
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 00:24:14
![select * into ##TmpPosTotR142013386297 from ##TmpPosTotR242013386297 where 1=2这个句子1肯定不等于2啊,为什么要说where 1=2?一定不一样啊](/uploads/image/z/7976772-36-2.jpg?t=select+%2A+into+%23%23TmpPosTotR142013386297+from+%23%23TmpPosTotR242013386297+where+1%3D2%E8%BF%99%E4%B8%AA%E5%8F%A5%E5%AD%901%E8%82%AF%E5%AE%9A%E4%B8%8D%E7%AD%89%E4%BA%8E2%E5%95%8A%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E8%AF%B4where+1%3D2%3F%E4%B8%80%E5%AE%9A%E4%B8%8D%E4%B8%80%E6%A0%B7%E5%95%8A)
select * into ##TmpPosTotR142013386297 from ##TmpPosTotR242013386297 where 1=2这个句子1肯定不等于2啊,为什么要说where 1=2?一定不一样啊
select * into ##TmpPosTotR142013386297 from ##TmpPosTotR242013386297 where 1=2
这个句子1肯定不等于2啊,为什么要说where 1=2?一定不一样啊
select * into ##TmpPosTotR142013386297 from ##TmpPosTotR242013386297 where 1=2这个句子1肯定不等于2啊,为什么要说where 1=2?一定不一样啊
→_→对,这意思就是不管你是什么样的数据都不会查询出东西来.
select * into dept2 from dept
select * into b from a where 11
数据库中select into from 和 insert into select的区别
SELECT
abap 中 select.into 和 move.to 的区别!
insert into a select * from b 和select * into a from b 这两个语句是不是一样的?
oracle 中select into是什么意思把一个表里面的内容复制到另一个吗 还是别的 是不是还要先创建一个表啊create table aaa as select * from bbb 这样的效果 用select into 能做到么?
select count (1)V_COUNT := 0;SELECT COUNT(1) INTO V_COUNT FROM CUST WHERE CUST_ID = ARG_CUST_ID;IF V_COUNT = 0 THEN我是个初学者,今有如上这么一段程序,里面select count(1)是什么意思?
insert into REC_OVER(ORG_ID) select '1' from dual where not exists (select ORG_ID from REC_OVER )insert into REC_OVER(ORG_ID) select '1' from dual where not exists (select ORG_ID from REC_OVER ) 请问oracle里这样的语句,为什么在sql/plus可
select count() into :r_count from zw_kmyeb where km_code like '5%' and qcye0;messagebox('r_count',r_count)like 5%是什么?
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
insert into a (select * from b)和把记录取出来然后分别insert那个的效率高?
select * into a from a..a 请问,这句中的a....有什么用a..是另一个库吗
select hkont from bseg into table itab_bseg where ( hkont like '1001%' or hkont like '1002%' ).中%是什么意思
英语翻译x=.value a= select .into table t + x&a(+x a=为什么要加引号?)
piease.select
select()是什么?
select your