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oracle怎么把查询结果插入到另一表中?

PHPz
Release: 2020-09-05 09:56:20
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方法:1、使用“create table B as select * from A”语句将A表的查询结果直接生成并导入到新表B中;2、使用“insert into B select * from A”语句将A表查询结果插入到B表中。

oracle怎么把查询结果插入到另一表中?

oracle 把查询结果插入到表中几种方式

一、Oracle数据库中,把一张表的查询结果直接生成并导入一张新表中。 

例如:现有只有A表,查询A表,并且把结果导入B表中。使用如下SQL语句: 

create table B as select * from A
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二、Oracle数据库中支持把查询结果导入到另外一张表中。

例如:有两个表A和B

1)、如果两个表的表结构是否相同,但要插入的字段类型相同:

I、把A表的全部字段数据插入到B表中:

insert into B select * from A;
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II 把A表中某些字段的数据插入B表中:

insert into B(字段名)(select 字段名 from A)
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2)如果不在同一个schema下请在表名前加上schema,例如有schema a和b:

insert into b.B select * from a.A
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