Answers for "how to add not null in existing table in sql"

Change A filed to not null

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

Posted by: Guest on March-19-2020

how to add not null constraint in sql

ALTER TABLE table_name MODIFY column_name datatype NOT NULL;

Posted by: Guest on April-05-2021

add new column not null sql server

ALTER TABLE MY_TABLE
ADD STAGE INT NOT NULL
DEFAULT '0';

Posted by: Guest on September-21-2020

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