select @contraintname = constraint_name from information_schema.table_constraints where constraint_type='primary key' AND TABLE_NAME = @tablename SELECT @COLUMNNAME = COLUMN_NAME FROM ...

This issue occurs because the sql_require_primary_key flag in MySQL prevents the creation of tables without a primary key. Because of the way Laravel's Schema builder assigns primary keys to ...

Each record has a unique identifier or primary key. SQL, which stands for Structured Query Language, is used to communicate with a database. Through SQL one can create and delete tables. Here are some ...