Answers for "sql alter table add not null"

Change A filed to not null

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

Posted by: Guest on March-19-2020

SQL Alter column to be not null

ALTER TABLE table_name
ALTER COLUMN col_name data_type NOT NULL;

Posted by: Guest on September-07-2021

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

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