SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2

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SQL>CREATETABLEYASSELECT*FROMXWHEREno=2SQL>CREATETABLEYASSELECT*FROMXWHEREno=2SQL>CREATETABLEYASSELE

SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2
SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2

SQL> CREATE TABLE Y AS SELECT * FROM X WHERE no=2
1、取出X表里面no等于2的所有记录;
2、新建一个Y表,把刚刚取出来的数据方进去.
注:操作完成后,X表和Y表的数据字段相同.

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