Tried to create an auto increment column with a unique constraint in a mysql table, but Liquibase Validation doesn't allow it with the message "Cannot add a non-primary key identity column". Despite ...

In many cases we need to create foreign key in a table. We can do this at the time of table creation and after the table creation by ALTER command. 1- At the time of table creation: CREATE TABLE ...

Sure!<P>Based on the way database servers "do their stuff" there is absolutely no way to guarantee the order in which a SELECT returns tuples (results). What you want to do is add a column that can be ...