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Sun, Oct 10 2010 6:49 PM | Permanent Link |
Jan Ferguson Data Software Solutions, Inc. ![]() | Hi Tim,
I need to be able to set a unique constraint on a table but I also need one of the fields (multi-field constraint) to be sorted in descending order. EDB Manager automatically makes each field an ASC sort. This can't be done currently (unless I am missing something) either programmatically or via the EDB Manager, Meanwhile, I can't create an index to do the same thing as I cannot make the index UNIQUE, which is also necessary for this particular table. Could this option, either being able to select the sort order of a field -and/or- being able to create a UNIQUE index, be included in ElevateDB (especially in the EDB Manager)? Thanks for a great product! -- Jan Ferguson |
Sun, Oct 10 2010 6:57 PM | Permanent Link |
Jan Ferguson Data Software Solutions, Inc. ![]() | Oops...sorry. Using EDB v2.03 build 4.
-- J.B. Ferguson wrote: > Hi Tim, > > I need to be able to set a unique constraint on a table but I also > need one of the fields (multi-field constraint) to be sorted in > descending order. EDB Manager automatically makes each field an ASC > sort. This can't be done currently (unless I am missing something) > either programmatically or via the EDB Manager, > > Meanwhile, I can't create an index to do the same thing as I cannot > make the index UNIQUE, which is also necessary for this particular > table. > > Could this option, either being able to select the sort order of a > field -and/or- being able to create a UNIQUE index, be included in > ElevateDB (especially in the EDB Manager)? > > Thanks for a great product! |
Sun, Oct 10 2010 7:00 PM | Permanent Link |
Jan Ferguson Data Software Solutions, Inc. ![]() | Dang...I can't get my fingers to work right. I *MEANT* v2.04 build 4
(in other words, the most recent version!) -- J.B. Ferguson wrote: > Hi Tim, > > I need to be able to set a unique constraint on a table but I also > need one of the fields (multi-field constraint) to be sorted in > descending order. EDB Manager automatically makes each field an ASC > sort. This can't be done currently (unless I am missing something) > either programmatically or via the EDB Manager, > > Meanwhile, I can't create an index to do the same thing as I cannot > make the index UNIQUE, which is also necessary for this particular > table. > > Could this option, either being able to select the sort order of a > field -and/or- being able to create a UNIQUE index, be included in > ElevateDB (especially in the EDB Manager)? > > Thanks for a great product! |
Mon, Oct 11 2010 2:19 AM | Permanent Link |
Roy Lambert NLH Associates ![]() | Jan
What about using a check constraint and then you can use SQL, if necessary via a custom function. Roy Lambert [Team Elevate] |
Tue, Oct 12 2010 6:02 AM | Permanent Link |
Jan Ferguson Data Software Solutions, Inc. ![]() | Roy,
Thanks... I could look into doing something like that but I was hoping for a crisp and clean solution (just a mouse click or so.) They (constraints and indices) each have part of what I need to do...just hoping Tim could allow either one to do the "other part". -- Jan Roy Lambert wrote: > What about using a check constraint and then you can use SQL, if > necessary via a custom function. |
Tue, Oct 12 2010 6:43 AM | Permanent Link |
Roy Lambert NLH Associates ![]() | Jan
Just a thought. There's nothing to stop you having a UNIQUE constraint and a separate index with the descending field. Roy Lambert [Team Elevate] |
Tue, Oct 12 2010 5:03 PM | Permanent Link |
Jan Ferguson Data Software Solutions, Inc. ![]() | Roy,
Duh! I couldn't see the forest through the trees. Of course! I don't know why I was thinking that the index was relying on the sort order of the data for uniqueness. Of course it isn't. Sometimes you just get too close to a problem to see the obvious. Thanks for the kick in the right direction. -- Jan Roy Lambert wrote: > There's nothing to stop you having a UNIQUE constraint and a separate > index with the descending field. |
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