add column in sql with default value code example

Example 1: add column table sql default value

ALTER TABLE users
ADD visit_number INT DEFAULT 0;

Example 2: alter table add column with default value

ALTER TABLE Protocols
ADD ProtocolTypeID int NOT NULL DEFAULT(1)

Example 3: set default column value sql

Name Varchar(255) default "Fred"

Example 4: add column alter table default value

ALTER TABLE PERSON
ADD IS_ACTIVE VARCHAR2(1) DEFAULT 'N' NOT NULL

Example 5: How to Add a Default Value to a Column in MS SQL Server

ALTER TABLE <table_name> ADD DEFAULT <DEFAULT_VALUE> FOR <NAME_OF_COLUMN>