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Select TOP 1 on two fields
Message
From
01/02/2023 14:47:52
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01686062
Message ID:
01686064
Views:
48
>Hi,
>
>I am creating a SQL Select that will select ONE record based on two fields. The two fields are DATE_FLD and ORDER_NO field. There could be more than one records with the same DATE_FLD value (e.g. "01/01/2023) but the ORDER_NO will be different for each record. I need to select a record with the largest value in the ORDER_NO field.
>
>Here is my test:
>
>select TOP 1 CONVERT(VARCHAR(10),DATE_FLD,101) + STR(ORDER_NO), FIELD2, FIELD3 from MyTable order by DATE_FLD, ORDER_NO DESC
>
>
>Will the above give me what I am looking for?
>

That's overkill. Use:
SELECT DATE_FLD, MAX(ORDER_NO) FROM MyTable GROUP BY DATE_FLD 
Tamar
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