Explicitly enter a NULL

Explicitly enter a NULL.

schema:scott

DELETE FROM t_peep WHERE id=4677

INSERT INTO t_peep VALUES (4677, NULL)

INSERT and DELETE Operations

INSERT new records

UPDATE existing records

DELETE records

INSERT ... SELECT

INSERT: Not all fields need to be specified

INSERT a date

Explicitly enter a NULL

INSERT problems: reference

DELETE problems: reference

INSERT problems: incompatible formats

String contains a quote '

Data normalization