sql make column not null code example
Example 1: Change A filed to not null
ALTER TABLE
clients
ALTER COLUMN
phone
NVARCHAR(20) NOT NULL;
Example 2: change sql column from null to not null
ALTER TABLE [TABLE_NAME] CHANGE [COLUMN_NAME] [COLUMN_NAME] [COLUMN_TYPE] NOT NULL DEFAULT [DEFAULT];
Example 3: add new column not null sql server
ALTER TABLE MY_TABLE
ADD STAGE INT NOT NULL
DEFAULT '0';