How to lock the record in the form?

Hi all

I want to lock the selected records in the time of the query. Let's say I want to lock the records in the Employee table. And I have a block of the base table (no view on screen) the employee and one table from another base block (display fields: Department code and the name of the Department, situation, number of employees on the screen) which is a summary of records selected in the Employee table.

Now, I want to lock the records in the Employee table when run query so that some backend process cannot 'touch' the annals which are already displayed on the screen.

I tried to put the ' SELECT '1' IN v_dummy FROM EMPLOYEE WHERE update_user =: B_CONTROL.c_user FOR UPDATE NOWAIT ' under the block trigger 'On-Lock' of base table. Then go to SQL * MORE to update the employee record. However, I can update the record successfully. This isn't my expected result.
So, how can I lock the record in the form? Any suggestion? Please help and thank you all for advice.

I use Oracle 10 g 10g 2 formula.

Thank you.

Kind regards.

Looks like that record is already locked by another user. So, what do you expect the form in this case.

BTW... Instead of locking the record "by hand", you can also use EXECUTE_QUERY (FOR_UPDATE)

Tags: Oracle Development

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