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Old November 22nd, 2003, 07:23 AM
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Default How to write in SQL language for auto running numb


I would like to know how to write in SQL if my table need a auto runing number for each record? let say

auto ID item code qty
1 A100 10
2 A101 5
3 A102 13

how to write in SQL language to get a auto running number on my table?

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Old November 22nd, 2003, 12:37 PM
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What is your database platform? There are certain ways that make this completely automatically and less prone to problems if you have a db platform that supports it (MS Access, MS-SQL Server).

Here is one way you could do this:

INSERT INTO myTable(autoIDColumn,...) VALUES(
    (SELECT MAX(autoIDColumn)+1 FROM myTable)
    , ...)

Work smarter, not harder.
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