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Save data update increment

rafaelscouto , February 13 2020, 13:20
R
rafaelscouto 178
February 13 2020, 13:20 #391174
I would like to create an increment when updating the database.

In the form I have the fields Output and Inventory, Est.sale and Est.quant, respectively.

When updating, I only send Est.sale, and I need it to be increased with the value already in the table.

How can I solve this?
duvida_incr.jpg