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SQL 2022-01-28 18:32:04
oracle add attribute to table
-- ALTER TABLE <table> ADD <column> <type> <constraint>; ALTER TABLE members ADD age NUMBER; ALTER TABLE members ADD birth_date DATE NOT NULL; ALTER TABLE members ADD registering DATE DEFAULT sysdate; ALTER TABLE members ADD membe... Add solution -
Other 2022-01-25 14:11:18
difference between blank and null django
null=True sets NULL (versus NOT NULL) on the column in your DB. Blank values for Django field types such as DateTimeField or ForeignKey will be stored as NULL in the DB. blank determines whether the field will be required in forms. This includes the a... Add solution