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SQL Avoiding duplicates
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
01392542
Message ID:
01392549
Vues:
55
>Dear All,
>
>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

Not sure, what do you mean here, "duplicates". For instance, why #1, not #2? What is the logic behind "I would like" to return "Dupuis | 200817", but not " Durand | 200817" ? Why to return both, #6, and #7 having the same REF ?
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