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Where is the data stored until ApplyUpdates is called

Posted on 2011-02-14
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Last Modified: 2013-11-23
I need to read data that has been posted to a table before ApplyUpdates is called.  Using Delphi 3 and Guptas SQLBase database.  When the data is posted, the records are not visible in the table until ApplyUpdates is called.  
Does anyone know where the cached records are stored?

Thanks!

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Question by:TheMatrixDuck
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6 Comments
 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 34888445

To check if records have changed
Dataset.ChangeCount > 0

To get a fields new value
Dataset.FieldByName('yourfiled').Newvalue    

To get the fields old value
Dataset.FieldByName('yourfiled').OldValue
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Author Comment

by:TheMatrixDuck
ID: 34888780
Thanks for  your answer.  I have tried Dataset.Recordcount after inserting 3 records.  The count always returns 0.
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LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 34888837

What components are you using for your datasets

ADO or BDE.

Note unidirectional datasets will not return the RecordCount nor will they allow you to use First, or Prior
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Author Comment

by:TheMatrixDuck
ID: 34889400
sqlDirect data access components (TSqlQuery).
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LVL 32

Accepted Solution

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Ephraim Wangoya earned 1000 total points
ID: 34908767

Sorry I'm not familiar with sqlDirect components, but the principle should be the same

If you are adding data directly to the dataset, there is no reason the data should not be displayed as you type it in otherwise how do you know what you are typing in.
Unless you are adding data to a temporary dataset or object and a different function adds the records to the dataset before calling ApplyUpdates

I would very much like to see the code for this if you can post it here
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Author Closing Comment

by:TheMatrixDuck
ID: 34910092
I did not clarify my question accurately enough.  I was attempting to access the records from a dll where the recoredset is not visible.

If I had worded the question correctly, I'm sure I would have received a more contextually accurate answer.
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