Question

I have database, and in one the tables I need change the values of a column, due to a mix up with another developer. I have table called credits, and a column called credit_type.

credit_type has 2 values long and short.

How can I replace all the values that are long to read short, and all the values that are short to read long?

Answer 1

update credits set credit_type = 'interim' where credit_type = 'long';
update credits set credit_type = 'long' where credit_type = 'short';
update credits set credit_type = 'short' where credit_type = 'interim';

Wrap it all in a transaction for full reliability.