Delete matching database rows

does the action 'modify column' update values
into target table i have tried do it but he does not work .thanks a lot.

The "Modify column" action modifies values inside an EasyMorph table, not a database table.

You were trying to use the "Delete matching database action" but it seems that that action can't be used with MySQL and a large number of rows because it takes too much time for MySQL to execute the DELETE query.

You can try to use a workaround from the following post:

apparently the only method to update on the target table in easymorph is the one I proposed to you in the previous message:
-Import the lines to update in EasyMorph
-Save them in a temporary .dset file
-Update rows in EasyMorph
-Delete rows from the database table
-Export the updated rows in the database table
-Delete the temporary .dset file
here is the link concerned:Updating database rows - #3 by Shaheed_Fazal