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abc
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 Posted - 2002-02-07 : 22:29:35
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| Hi all,I'm going to use contrains for my db, there are some contrains: Primary key, Index, Unique contrains used to ensure that a particular column in a table cannot have values duplicated and speed up database access. So what is the deferrent between these contrains ? Can someone tell me more detail...Thanks for your attention |
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Nazim
A custom title
1408 Posts |
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using contrains