ORA error

ORA-01400

ORA-01400: cannot insert NULL into (string)

Quick fix

Cause: The INSERT supplies no value (or an explicit NULL) for a column declared NOT NULL that has no DEFAULT. The string in the message names the schema, table and column.
Fix: Supply a value for that column in the INSERT, or give the column a DEFAULT (ALTER TABLE ... MODIFY col DEFAULT ...). For generated keys, use a sequence or an identity column.

ORA-01400: cannot insert NULL into non-null column – NOT NULL constraint on column with no default.

Database