SQL NOT NULL Constraint
#sql #not #null #constraint #sql
By default, a column can hold NULL values.
The NOT NULL constraint enforces a column to NOT accept NULL values.
This enforces a field to always contain a value, which means that you cannot insert a new record, or update a record without adding a value to this field.
Видео SQL NOT NULL Constraint канала Pratik Shah
By default, a column can hold NULL values.
The NOT NULL constraint enforces a column to NOT accept NULL values.
This enforces a field to always contain a value, which means that you cannot insert a new record, or update a record without adding a value to this field.
Видео SQL NOT NULL Constraint канала Pratik Shah
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31 марта 2023 г. 9:40:28
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