Updating table in sql
The results show that we have successfully updated an order (order id 1).
So, perhaps a better way to tackle the same problem would be to increment the existing value (add 2) rather than updating with a single, static value.
So, instead of setting the quantity table column to a specific value of 6, we can send it the current table column value directly and then add 2 to that already existing value.
Once you click "Save," the old file is lost and replaced with the new file.
Once an UPDATE command has been executed, the old data values are lost, being overwritten by the new value.
However, since the intention of this next example is to update multiple rows, let's go ahead and remove the WHERE clause from the above example.