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Focal Point Forums WebFOCUS/FOCUS Forum on Focal Point Maintain: Reading a specific record
Focal Point Forums WebFOCUS/FOCUS Forum on Focal Point Maintain: Reading a specific record Read-Only TopicGo | Search | Notify | Tools |
| Maintain: Reading a specific record | Login/Join |
| Member |
Hello, Everyone. My SQL table has an identity (auto-number) field that has been set up as a key. Once I've included the new record to the table from my Maintain procedure, is there a way to efficiently pull back the value of the new identity so I can populate it into other tables? I've been able to pull all records back from the table into a stack, sort it 'by highest', and then pull the first record, but as my table grows I don't see this working efficiently. Any suggestions would be appreciated. Kelly WF 7.6.6, Win 2K3 SP2, Tomcat | ||
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| Master |
Kelly Any chance of using a second key field that you can control and keep as unique? This way you could query THAT key instead of the dynamically incremended one. Mark | |||
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| Member |
It's possible but seems like quite a lot of overhead. Where the table I'm needing to update is going to have thousands of records, I would at some point have to load in all the unique values I control anyway to ensure that the next is unique. Using the following SQL, it does return the last identity created: SELECT IDENT_CURRENT('tablename') Perhaps there is a way to pass this SQL directly from Maintain and store the result in a variable? Kelly WF 7.6.6, Win 2K3 SP2, Tomcat | |||
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| Virtuoso |
Kelly Could you use SYS_MGR, I've never used it, but there may be something in there, look at your 761 course or help for the syntax. Otherwise, why not EXEC a focexec with your SQL in and return the answer into a stack. I have often found that quicker when retrieving single values for a known index, or similar circumstances. Alan. WF 7.705/8.007 | |||
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| Member |
Good idea, Alan. I'll give it a shot. I'll let you know the results. Kelly WF 7.6.6, Win 2K3 SP2, Tomcat | |||
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| Virtuoso |
Kelly It occurred to me that if this is a multi-user system, the approach is flawed. If a second user adds an item before you retrieve the ident_current then your data will be out of line. You will need to ensure that the value you retrieve belongs to the correct user not someone else. Alan. WF 7.705/8.007 | |||
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| Expert |
As far as I know SYSMGR will not return values just error codes, successful or not. Waz...
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| Member |
Alan, A couple of things: 1) pulling the 'ident_current' via a WF procedure worked just fine. I never could get the sys_mgr working correctly. 2) You're absolutely correct about the multi-user system. For part of this app it should be ok, for another part I will be accomodating for this and using a different unique identifier. I appreciate the thought. Kelly WF 7.6.6, Win 2K3 SP2, Tomcat | |||
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