在SQL SELECT语句中将查询结果存放在一个表中应该使用什么子句? 在SQL SELECT语句中将查询结果存放在一个表中应该使用...

VFP\u91cc\u4f7f\u7528SQL\u7684SELECT\u8bed\u53e5\u5c06\u67e5\u8be2\u7ed3\u679c\u5b58\u50a8\u5728\u4e00\u4e2a\u4e34\u65f6\u8868\u4e2d\uff0c\u5e94\u4f7f\u7528\u4ec0\u4e48\u5b50\u53e5\uff1f

sqlexec(con,cSql,'temp')


con \u4e3a\u8fde\u63a5\u6570\u636e\u5e93\u7684\u53e5\u67c4
cSql \u4e3a\u8981\u5728sql\u6570\u636e\u4e2d\u6267\u884c\u7684\u8bed\u53e5
temp\u4e3asql\u8bed\u53e5\u6267\u884c\u7684\u7ed3\u679c\uff0c\u5728vfp\u4e2d\u7684\u4e34\u65f6\u8868

\u7528insert into \u6216\u8005into\u8bed\u53e5\u3002
\u5982\u679c\u63d2\u5165\u5df2\u6709\u7684\u8868:
insert into A(col1,col2)
select c1, c2 from B

\u751f\u6210\u4e00\u4e2a\u65b0\u8868\uff1a
select c1, c2 into A from B

用insert into 或者into语句。
如果插入已有的表:
insert into A(col1,col2)
select c1, c2 from B

生成一个新表:
select c1, c2 into A from B

创建两个表,Students 为A表,Students _Temp为B表,从A表取ID,UserName插入到B表中。第一,A表--Students CREATE TABLE [Students] (
[ID] [int] NOT NULL ,
[UserName] [varchar] (20) COLLATE Chinese_PRC_CI_AS NULL ,
[Age] [int] NULL ,
[Sex] [char] (10) COLLATE Chinese_PRC_CI_AS NULL ,
CONSTRAINT [PK_Students] PRIMARY KEY CLUSTERED
(
[ID]
) ON [PRIMARY]
) ON [PRIMARY] --B表CREATE TABLE [Students_Temp] (
[ID] [int] NOT NULL ,
[UserName] [varchar] (20) COLLATE Chinese_PRC_CI_AS NULL ,
[Age] [int] NULL ,
[Sex] [char] (10) COLLATE Chinese_PRC_CI_AS NULL ,
CONSTRAINT [PK_Students2] PRIMARY KEY CLUSTERED
(
[ID]
) ON [PRIMARY]
) ON [PRIMARY] 第二,A表插入实验数据insert into Students values (1,'zhangsan1',19,'man')
insert into Students values (2,'zhangsan2',19,'man')
insert into Students values (3,'zhangsan3',19,'man')
insert into Students values (4,'zhangsan4',19,'man')
insert into Students values (5,'zhangsan5',19,'man')
insert into Students values (6,'zhangsan6',19,'man')
insert into Students values (7,'zhangsan7',19,'man')
insert into Students values (8,'zhangsan8',19,'man') 第三,执行A表取数据插到B表中操作insert into Students_Temp(ID,UserName) select ID,UserName from Students 最后,查看B表Students_Temp中的数据select * from students_Temp

insert into 表1 select * from 表2 //表1存在的 select * from 表2 into 表1 //表1不存在的,新建一个表1

sqlserver中SELECT COL1,COL2,COL3 INTO NEWTABLE FROM TABLE WHERE ......oracle中CREATE TABLE NEWTABLE AS SELECT COL1,COL2,COL3 FROM TABLE WHERE ....

第一个答案是正确的。第二个瞎扯

本站交流只代表网友个人观点,与本站立场无关
欢迎反馈与建议,请联系电邮
2024© 车视网