Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
LEFT JOIN and complex criteria
Message
From
25/09/2006 13:12:12
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Environment versions
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01156530
Message ID:
01156981
Views:
21
>Fabio,
>
>This select is quite slow. Do you know if it is possible to make it quicker?
>
>select curTemp.cTrans_pk, TI.cInsurances_fk ;	
>		from curTemp inner join Trans_Insurances TI ;
>		on curTemp.cTrans_pk = TI.cTrans_fk ;	
>		where TI.iSequence_Number = (select max(iSequence_Number) ;
>		from Trans_Insurances X ;
>		where X.cTrans_fk = TI.cTrans_fk) ;
>		into cursor curTemp1
with VFP it is hard

before posting 10 solutions,
you could furnish me these information:

- reccounT(curTemp)/reccount(Trans_Insurances) ratio
- is curTemp.cTrans_pk a pk
- is TI.cTrans_fk a pk or for every curTemp.cTrans_pk the join has many TI.cTrans_fk
Previous
Next
Reply
Map
View

Click here to load this message in the networking platform