In mysql, the default constraint is used to insert value into a column in a table. if there is no value is specified for a column then the default value will be added to column for all new ...

In mysql, the primary key constraint is used to uniquely identify each record in a table.primary key contains unique values only and the column defined as primary key column can not be null. a table ...

Steps to reproduce For our specific case, we have a MySQL 8.0 database that contains a table with a check constraint which validates a JSON column against a specific schema using the json_schema_va ...

We believe that Doctrine should actually omit this query entirely on DBMSes which do not support partial unique constraints, as the query that is generated does not enforce the same logic as the ...