But roles and permissions table have no primary key. Expected behavior Be able to init table successfully. Actually behavior Failed to create table roles and permissions. How to Reproduce Steps to ...

/* The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the ...

MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a standard INSERT statement, you will ...