Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Equivalent selects
Message
 
To
17/09/2008 16:47:45
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Vista
Network:
Windows 2008 Server
Database:
MS SQL Server
Miscellaneous
Thread ID:
01348392
Message ID:
01348408
Views:
12
>>>>>>>I am assuming these 2 statements are functionally equivalent. Am I correct?
>>>>>>>Thanks
>>>>>>>
>>>>>>>select * ;
>>>>>>>from test_financing ;
>>>>>>>inner join tip on test_financing.tip_id = tip.tip_id ;
>>>>>>>where between(_year,tipyear,tipyear+4) ;
>>>>>>>order by lead, st_name, _year 
>>>>>>>
>>>>>>>select * ;
>>>>>>>from tip ;
>>>>>>>inner join test_financing on test_financing.tip_id = tip.tip_id ;
>>>>>>>where between(_year,tipyear,tipyear+4) ;
>>>>>>>order by lead, st_name, _year 
>>>>>>>
>>>>>>
>>>>>>Yes. You will get the same result from both.
>>>>>>But abouth to speed you should check Actual Execution Plan.
>>>>>
>>>>>What is AEP?
>>>>
>>>>Run both queries in SSMS (SQL Server Management Studio)
>>>>Before you run them just click on "Include Actual Execution Plan" button from the toolbar.
>>>
>>>Is that a VFP tool or is this some additional software I will have to install?
>>
>>SQL Server Management Studio is included with SQL Server Standard edition and higher.
>
>Ahh. . . then I don't have it available.
>Thanks

Don,
In VFP 8 or 9 you could use SYS(3054) to check how your query is executed, but because used database here is SQL Server that is why I suggested to use SSMS :-)
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.
Previous
Next
Reply
Map
View

Click here to load this message in the networking platform