Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Primary tag with !DELETED as filter expression
Message
From
26/03/1999 04:57:26
 
 
To
All
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Primary tag with !DELETED as filter expression
Miscellaneous
Thread ID:
00202278
Message ID:
00202278
Views:
66
Hello.

I have a question regarding Index on DELETED() and a primary tag with !DELETED() as a filter expresion.

Let's assume that I have a customer table with cust_id as PK.
I remove a customer and add another customer with the same cust_id (cust_id is not a generated PK). This will generate a duplicate error message. So to solve this problem I add a filter expression on the cust_id PK: !DELETED(). Should I have an Index tag on DELETED() to optimize perfomance?

And there also seems to be a problem with connection with ODBC to this table when I have the filter condition !DELETED(). It says there is not deleted field. Anyone seen this before?
Magnus Nordin
VFP MCP

"We have tested the GUI on 5-year olds. Why? Beacuse they aren't braindead!"
Michael Spindler, Apple

Next
Reply
Map
View

Click here to load this message in the networking platform