To edit existing records in tables, there is an SQL operator UPDATE.
UPDATE table_name SET table_field1 = table_field_value1, table_fieldN = table_field_valueN [WHERE the_conditions_of_the_limitations]
So, for example, if you need to change the name, the request will look like this:
UPDATE FamilyMembers SET member_name = "Andie Anthony" WHERE member_name = "Andie Quincey"; -- and immediately check the result SELECT * FROM FamilyMembers;
Be careful when updating data. If you skip the WHERE operator, all entries will be updated.
In data update requests, you can change values based on previous values.
UPDATE Payments SET unit_price = unit_price * 2
It is also allowed to assign values of some columns to other columns. But at the same time, of course, column types must be compatible.