Question

How can we update timestamp in table without any updation
without below statement

update table_name set field_name1 = 1 where field_name =1;

and i have added image of table structure

Answer 1

You cannot update without using UPDATE.

For timestamp columns, read the MySQL docs: Automatic Initialization and Updating for TIMESTAMP

If the column is auto-updated, it is automatically updated to the current timestamp when the value of any other column in the row is changed from its current value. The column remains unchanged if all other columns are set to their current values. To prevent the column from updating when other columns change, explicitly set it to its current value.

To update the column even when other columns do not change, explicitly set it to the value it should have (for example, set it to CURRENT_TIMESTAMP).

So, update the timestamp column only:

UPDATE table_name 
SET last_delv_date = CURRENT_TIMESTAMP
WHERE ... ;