求翻译下面的内容select from the four choices of each item the one that best answers the question or completes the statement. mark your choice by blackening the corresponding letter A. , B. , C. , or D. on the answer sheet.

求翻译下面的内容select from the four choices of each item the one that best answers the question or completes the statement. mark your choice by blackening the corresponding letter A. , B. , C. , or D. on the answer sheet. 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? Please select an option from the menu below:请翻译 ms sql :select * from (select *from b) as xxx where 和 select * from (select *from b) xxx where区select * from (select *from b) as xxx where…… 和 select * from (select *from b) xxx where……的区别别告诉我是一样的.因为我有一 求大神注释下面的一段代码 以及说明其功能alter proc prc_getallscoreasbeginupdate studentinfoset lastscore =0declare @sno char(10)declare @score int declare sno_cursor CurSor for select sno from studentinfoopen sno_cursor fetch next f select * from book limit , 数据库中select into from 和 insert into select的区别 求单表查询的hql语句怎么写sqL如下：select * from aaa20 where aaae2001 = '11111111';求hql语句写法 Select all cus_name city from customer; Select all cus_name,city from customer; 有何不同?Select all cus_name city from customer; Select all cus_name,city from customer;这两条语句查询的结果为什么不一样?第二句的逗号有什么 insert into a select * from b 和select * into a from b 这两个语句是不是一样的? select Customer from(SELECT CustomerName AS Customer FROM Customers) cus;请问这里的cus起什么作用 求达人 帮解释一下下面句子的用法,特别是问号的意思 $sql_mobile=$mobile?'OR email_mobile=?' :' ';$sql='SELECT * from dtb_customer WHERE (email=?' .$sql_mobile.')'; select a from dbo.A where c=1 intersect selcet b from dbo.B where d=1求它的行个数怎么附加count函数 英语翻译whataya want from me歌曲内容的翻译 delete from A where a_id in (select id from B where b_id in (select id from C where c_id = ?))请问这句SQL语句怎么优化? 我的意思万一in语句里面的内容过多会出问题的,怎么用连接表的形式去delete? select * from a union select * from b 能详细说下么 select from 表 和select from [表]有什么不同? 英语翻译select 如何翻译