Row cannot be located for updating some values

Posted by / 02-Feb-2021 17:38

Deleting some rows may occur if there is no primary key, because ADO execute query: DELETE FROM [Some Table] WHERE .... Deleting some rows may occur if there is no primary key, because ADO execute query: DELETE FROM [Some Table] WHERE .... Deleting some rows may occur if there is no primary key, because ADO execute query: DELETE FROM [Some Table] WHERE .... Detail Table has an autoincrement field as primary key. The local row is now deleted" and actually the row seems to disappear.

If there is no primary key, WHERE may select some rows. If there is no primary key, WHERE may select some rows. If there is no primary key, WHERE may select some rows. But If a close the de and re-launch it the row is there, with the proper ID value! If I delete or change the record I get the message "Row cannot be located for updating.

The solution I was hoping to find was to inform ADO which field(s) are the key to the table. "Brian Bushay Team B" I'm using Delphi 6 Enterprise with SP2.I use ADODataset (Cursor Location = cl Use Client and Cursor Type = ct Static).When I add a new record the Autoincrement field is not filled with the proper value but always with 0. This doesn't happen if Cursor Location is set to cl Use Server and Cursor Type to ct Key Set, but I don't know if this the right choice for a stand alone application.The number one offender is the lack of a primary key in your data when you try to post it back to the DB. I have been sporadically getting a "Row cannot be located for updating" error. In this instance, I am just building a desktop application. To do this it must be able to find the record in your database that corresponds to the record you are editing.If you dont have a primary key, then the db manager tries to figure out which row should be updated by seeing if he can find one that looks much like the one that you just changed in the query object. I am not able to reproduce it, although it occurs most often when I am trying to delete a record. The error message you are getting indicates that ADO can't find the record to be deleted.

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