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1.´´½¨±íT²¢³õʼ»¯²âÊÔÊý¾Ý£¬´Ë±í×÷ΪÊý¾ÝÔ´¡£
sec@ora10g> create table t (x number(10), y varchar2(10));
sec@ora10g> insert into t values (1,'a');
sec@ora10g> insert into t values (2,'b');
sec@ora10g> insert into t values (3,'c');
sec@ora10g> insert into t values (4,'d');
sec@ora10g> insert into t values (5,'e');
sec@ora10g> insert into t values (6,'f');
sec@ora10g> commit;
2.²é¿´±íTµÄÊý¾Ý
sec@ora10g> select * from t;
X Y
---------- ----------
1 a
2 b
3 c
4 d
5 e
6 f
6 rows selected.
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sec@ora10g> create table t1 as select * from t where 0=1;
Table created.
sec@ora10g> create table t2 as select * from t where 0=1;
Table created.
4.µÚÒ»ÖÖ¶à±í²åÈë·½·¨INSERT ALL
1£©Íê³ÉINSERT ALL²åÈë
sec@ora10g> insert all into t1 into t2 select * from t;
12 rows created.
ÕâÀïÖ®ËùÒÔÏÔʾ²åÈëÁË12ÌõÊý¾Ý£¬Êµ¼ÊÉϱíʾÔÚT1±íÖвåÈëÁË6Ìõ£¬T2±í²åÈëÁË6Ìõ£¬Ò»¹²ÊÇ12ÌõÊý¾Ý¡£
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sec@ora10g> select * from t1;
X Y
---------- ----------
1 a
2 b
3 c
4 d
5 e
6 f
6 rows selected.
3£©ÑéÖ¤T2±íÖб»²åÈëµÄÊý¾Ý¡£
sec@ora10g> select * from t2;
X Y
-
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