alter table modify column name sql server code example

Example 1: alter table add column

ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;

Example 2: alter table query sql server change column

ALTER TABLE table_name
  ALTER COLUMN column_name column_type;

Example 3: change column name sql

ALTER TABLE `db_name`.`table_name` 
	CHANGE `current_column_name` `new_column_name` datatype(size) NOT NULL COMMENT '';

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