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2025-03-30 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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Sec@ora10g > create table test1 (a number primary key, b number not null)
Table created.
Sec@ora10g > desc test1
Name Null? Type
A NOT NULL NUMBER
B NOT NULL NUMBER
Sec@ora10g > insert into test1 values (1Pol 1)
1 row created.
Sec@ora10g > insert into test1 values (2jue 2)
1 row created.
Sec@ora10g > COMMIT
Commit complete.
Sec@ora10g > create table test2 as select * from test1
Table created.
Sec@ora10g > desc test2
Name Null? Type
A NUMBER
B NOT NULL NUMBER
Sec@ora10g > select * from test1
A B
--
1 1
2 2
Sec@ora10g > select * from test2
A B
--
1 1
2 2
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