set default value mysql code example

Example 1: set default today mysql

ALTER TABLE table
ADD column DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP;

Example 2: how to add default constraint in mysql

ALTER TABLE "name_table" ALTER "name_column" 
SET DEFAULT value_default;

Example 3: set default value mysql db

ALTER TABLE mytbl ALTER j SET DEFAULT 1000;

Example 4: set default column value sql

Name Varchar(255) default "Fred"

Example 5: mysql default value

CREATE TABLE table_name(
   column_name data_type,
   Column_name data_type DEFAULT ‘value’
);