Normal Topic Understanding an Error msg. (Read 1035 times)
BOBSCOTT
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Understanding an Error msg.
Jul 28th, 2005 at 3:25pm
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Can you please explain the following errors and the seriousness of such errors and what the best method to identify the cause is?

Get Limbo Value Failed Due to NULL Record

Limbo Failure Setting a Field.


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Hammer
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Re: Understanding an Error msg.
Reply #1 - Jul 28th, 2005 at 3:36pm
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Where are you seeing these messages?

Is there an error number with them, like S_ENG 510130?
  

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BOBSCOTT
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Re: Understanding an Error msg.
Reply #2 - Jul 28th, 2005 at 3:55pm
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I get these in Error Messages in various places without numbers.
I can get the numbers from the Admin Log

Get Limbo Value Failed Due to NULL Record  = S_Eng 510500

Limbo Failure Setting a Field S_Eng = 510130


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The Cow
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Re: Understanding an Error msg.
Reply #3 - Jul 28th, 2005 at 4:24pm
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Can you describe the structure of your application (subforms, etc...) and the operation under which you see this error?
  

Mark Lasersohn&&Programmer&&Lantica Software, LLC
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BOBSCOTT
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Re: Understanding an Error msg.
Reply #4 - Jul 28th, 2005 at 4:41pm
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Quote:
Can you describe the structure of your application


The structure is convoluted and apparently screwed up.

I thought I was building it fairly basic but..

It has a parent database that has a few child databases on subforms and a number of grandchild databases in subforms. all databases are linked together with natural links and has logic to create a shared key amongst the databases also.

The short explanation is:
The database consists of a parent Named firm. The firm has a child named firm address that allows multiple address locations for the firm to be associated with the firm. The Firm also has a child named Contact that holds multiple contacts associated with the firm.

The contact database has a child database called property. The contact can have multiple properties associated with each contact.

The property database has a child database called paymentst. Each property has many payments associated to the property.

The property database has many tabs that stores data such as employer info, financial info etc. There are a number of process that happen when the record is entered one for example is it goes out and looks to see if a specific form has been received, if it has it places a checkmark in a element and turns it green. There are numerous other assorted features.

Seeing it might explain it better then my words. If you like I can send it your way.

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The Cow
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Re: Understanding an Error msg.
Reply #5 - Jul 28th, 2005 at 5:13pm
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Are there any table subforms, especially among the grandchildren?
  

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BOBSCOTT
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Re: Understanding an Error msg.
Reply #6 - Jul 28th, 2005 at 5:25pm
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Yes numerous. I have both table and form views.

Is that bad Sad
  

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The Cow
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Re: Understanding an Error msg.
Reply #7 - Jul 28th, 2005 at 6:07pm
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No its not bad. The problem (which I believe is now fixed) has to do with the way subrecords are handled. Sesame's engine keeps the result set. Any record that is being viewed on the client, is kept in an index into the result set that we call "limbo". We call it limbo because the user may choose to save the record or abandon the changes to the record, or delete the record, etc...

When you are viewing records in a table, you can see, and rapidly alter many records at once. That make limbo management difficult, because, in a sense, all of the records are in limbo. To take care of this, during table view the client sends the engine (on the server) a number of commands to shuffle records in and out of limbo rapidly. The bug you are seeing is likely due to an usual sequence of these commands.

It is probably harmless, but I would recommend that you do some experiments, to see if there are any simple things you can do that might avoid the error message. That message is not typical of normal operation, so it must be something that your app is doing that would not be considered generally typical.
  

Mark Lasersohn&&Programmer&&Lantica Software, LLC
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BOBSCOTT
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Re: Understanding an Error msg.
Reply #8 - Jul 28th, 2005 at 6:14pm
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Thanks.

I will keep playing.
  

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