INSERT INTO .. .SELECT...FROM复制不完全记录

INSERT INTO .. .SELECT...FROM复制不完全记录

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作者: mckobe23(http://mckobe23.itpub.net)
发表于:2007.04.10 13:51
分类: Oracle
出处：http://mckobe23.itpub.net/post/29123/279056
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users表

SQL > select * from users;
ID NAME ADDRESS FLAG
--- ----------- --------------- ------
1 aaaaa aaaaaaaa123 1
2 bbbbb bbbbbbbb456 1
3 ccccc cccccbbb789 1

复制第一条记录到user表中

1.创建临时表

SQL> CREATE TABLE tmp_user AS select * from user where 1=2;
Table created.

2.复制第一条记录到临时表

SQL> INSERT INTO tmp_user SELECT * FROM user where id=1;
1 row inserted.

SQL > commit;

3.修改临时表记录[id字段为主键唯一标识]

SQL> update tmp_user set id=8;
1 row updated.

SQL > commit;

4.查看临时表

SQL > select * from tmp_user;

ID NAME ADDRESS FLAG
---- ----------- --------------- ------
8 aaaaa aaaaaaaa123 1

5.将临时表记录复制到原表中

SQL > INSERT INTO user SELECT * FROM tmp_user;
1 row inserted.

SQL > commit;

6.查看原表验证数据是否插入

SQL > select * from users;

ID NAME ADDRESS FLAG
---- ----------- --------------- ------
1 aaaaa aaaaaaaa123 1
2 bbbbb bbbbbbbb456 1
3 ccccc cccccbbb789 1
8 aaaaa aaaaaaaa123 1