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How to prevent the Duplicate Record screen?
Started by Jose Maldonado, Oct., 10 2017 3:51 PM - 4 replies
#1
Posted on October, 10 2017 - 3:51 PM
I am importing data from an Excel file into my database.
In the process I encounter duplicates that I want to ignore.
I am using the following code (after assigning the values):

IF HAdd(BVS_BOSS_LOAD) = False THEN
IF HErrorDuplicates() = True THEN
CONTINUE
END
ELSE
CONTINUE
END

All I need is that the process to ignore the duplicate record and
continue with the next record but it pops up a duplicate record
screen.

THNX !!
JoeMaldo
#2
Posted on October, 10 2017 - 4:16 PM
Hi Jose,

I'm doing this all the time! No such messages ...

The trick is to take a peek into the file before saving anything to the file.

MyPosition is 4-byte int . . MyPosition = HSavePosition(MyFile) IF HReadSeekFirst(MyFile, MyKey, MyUniqueKeyValueToBeSavedinFile) THEN // this is the potentially dangerous point, the key value to be saved is already there! IF MyPosition > -1 THEN HRestorePosition(MyPosition) // That's it. No save occurs ELSE HAdd(MyFile) // depending on the logic, you could insert a HRestorePosition(MyPosition) here END

Of course, if the record to insert is identical to that you already have in the file and an update doesn't hurt, then a simple HSave(MyFile) is sufficient!
#3
Posted on October, 10 2017 - 4:52 PM
Hi

you can either :
- do a hreadseek first and do the hadd only if not there
- or DEACTIVATE the automatic error handling of HF before using your existing code. Right now, you are testing for the duplicates error but the automatic error handling is doing TOO, and BEFORE you

Best regards
#4
Posted on October, 10 2017 - 5:13 PM
hOnError(BVS_BOSS_LOAD,hErrDuplicates,"SkipDUpes")

... Loop start ...
IF HAdd(BVS_BOSS_LOAD) = False THEN
CONTINUE
END
END
... Loop end ...

hOnError(BVS_BOSS_LOAD,hErrAll)

...

Procedure SkipDupes()
result opEndProcess

HTH,
Chris C
#5
Posted on October, 18 2017 - 3:55 AM
Guys,
Thank you for your help!
I solved the problem!!
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