Answers for "mysql add new column with default value from another column"

SQL
1

mysql add column default value

ALTER TABLE table1 ADD COLUMN foo INT DEFAULT 0;
Posted by: Guest on May-17-2020
14

mysql add column with default value

-- ALTER TABLE tbl_name ADD COLUMN column_name column_definition 
--		[FIRST|AFTER existing_column];
ALTER TABLE office ADD COLUMN phone VARCHAR(200) DEFAULT '000' AFTER name;
ALTER TABLE office ADD COLUMN flag INT(1) FIRST;
ALTER TABLE office ADD COLUMN last_col INT(2);	-- Last column is default position
-- ↓ Test it (Fiddle)
Posted by: Guest on June-30-2021

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