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SQL Avoiding duplicates
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To
01/04/2009 09:25:50
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01392542
Message ID:
01392565
Views:
50
You're welcome.

>
>Million thanks ... it works as a charm!
>
>Pat
>>You want the first record in the ID order for the same Ref, right? Try
>>
>>SELECT * FROM myatble mt1 ;
>>	WHERE NOT EXISTS (SELECT 1 FROM mytable WHERE ref = mt1.ref AND id < mt1.id)
>>
>>>
>>>Can someone help me find the correct syntax of a SQL statement would eliminate the duplicates?
>>>
>>>I have a table: 'mytable'. It has 3 fields: ID, NAME and REF
>>>
>>>ID | NAME | REF
>>>1 | Dupuis | 200817 *
>>>2 | Durand | 200817
>>>3 | Michiels | 200818 *
>>>4 | Dulome | 200819
>>>5 | Pernut | 200820 *
>>>6 | Bloquier | 200820
>>>7 | Moureau | 200820
>>>8 | Pirotte | 200821 *
>>>9 | Marchand | 200821
>>>
>>>
>>>I would like the SQL statement to return only the records that are tagged (all fields).
>>>
>>>How can I do this?
>>>
>>>Thanks to all,
>>>Pat
--sb--
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