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How to SEEK in SQL Server
Message
From
02/05/2005 18:21:39
 
General information
Forum:
Microsoft SQL Server
Category:
Other
Miscellaneous
Thread ID:
01010327
Message ID:
01010330
Views:
19
>>>Not knowing much at all about SQL Server, I was wondering if there is a way to find a record for the next field value.
>>>
>>>Here is how I would do it in VFP:
>>>
>>>Say I have field ORDER_NO, I, 4
>>>
>>>Say I want to find a record after the record with ORDER_NO 100 (where I don't know if 101 exists):
>>>
>>>
>>>set near on
>>>seek 100 + 1
>>>
>>>
>>>How would you do that in SQL Server?
>>>
>>>Thank you.
>>>
>>>P.S. On a related subject, why in VFP SEEK respects SET NEAR ON and SEEK() does not?
>>
>>SELECT TOP 1 * FROM SQLTable WHERE ORDER_NO>100
>
>I thought that this could be the answer. But TOP (at least in VFP) is a fairly slow. I think it is due to the fact that SQL Select has to go through all records before finding the TOP so many. Does TOP work differently in SQL Server?

That's correct. I'm not sure VFP9 still works that way, but that is the way it had to do it in the past. TOP works very differently in SQL Server.
Fred
Microsoft Visual FoxPro MVP

foxcentral.net
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