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UDF transmutation
Message
From
10/09/2015 15:10:14
Mike Yearwood
Toronto, Ontario, Canada
 
 
To
10/09/2015 14:29:47
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Germany
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Miscellaneous
Thread ID:
01623094
Message ID:
01624488
Views:
65
;) was just showing the relevant bits.
>Wouldn't
>
>>IF DBUSED("DATABASENAME")
>>  IF SET("DATABASE")#""DATABASENAME"
>>    SET DATABASE TO DATABASENAME
>>  ENDIF
>ELSE
> OPEN DATABASE DATABASENAME
>>ENDIF
>
>be a bit better?
>[gdr]
>
>
>>I just had occasion to change a small udf that did an unconditional OPEN DATABASE to this...
>>
>>IF DBUSED("DATABASENAME")
>> IF SET("DATABASE")#""DATABASENAME"
>> SET DATABASE TO DATABASENAME
>> ENDIF
>>ENDIF
>>
>>and guess what - the app starts visibly faster and things seem snappier overall. Maybe most programmers and most clients don't care about snappy, but I do. dbused is over 600 times faster than open database. I'll gladly take that.
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