Error into update
lazarus / 16-Databases

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xinyiman · 2016-04-25 18:35

Hello guys. I have a problem. In DBGrid when I update a record,
sometimes I give me the error that I attached as an image. But it not
always does.

I do not understand. Who explains to me. I use Ubuntu and Lazarus 1.6

Thank you

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LacaK · 2016-04-27 17:20

Seems related to TTabSheet. Try ask in LCL forum ?

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xinyiman · 2016-04-28 20:46

Excuse, the mistake is that I enclose now

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LacaK · 2016-04-29 17:50

I do not use ZEOS, but guessing from error message there is update
conflict.
So you try update some record in database, but no record for update is
found, so ZEOS raises exception.
It can hapen in multi-user environment, where somebody else updates
record, which you try update later, but no matching is found.
If it can be your case, then check how update is done if using all
original fileds values or only primary key fields etc. ...

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Xatrix · 2016-05-01 18:26

Show  update procedure for us . Maybe it's in Query error

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xinyiman · 2016-05-05 06:43

The query is performed by DBGrid object that loads data from a select
* from tablename. It does not always generate the error. It occurs
randomly

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Xatrix · 2016-05-05 17:46

Sorry ,but last time you wrote that this is the UPDATE procedure :-)