Answers for "alter table add not null SQl"

Change A filed to not null

ALTER TABLE
  clients
ALTER COLUMN
  phone
    NVARCHAR(20) NOT NULL;

Posted by: Guest on March-19-2020

sql is not null

The reverse of NULL. Tests for values that aren’t empty / NULL
"Tests for empty (NULL) values.
Example: Returns users that haven’t given a contact number.
SELECT * FROM users
WHERE contact_number IS NULL;"

Posted by: Guest on January-07-2021

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Answers for "alter table add not null SQl"

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Answers for "alter table add not null SQl"

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