alter existing column name in sql server code example
Example 1: sql rename column
EXEC SP_RENAME 'TABLE_NAME.OLD_COLUMN_NAME','NEW_COLUMN_NAME'
Example 2: change column name sql
ALTER TABLE `db_name`.`table_name`
CHANGE `current_column_name` `new_column_name` datatype(size) NOT NULL COMMENT '';
Example 3: sql alter column name sql server
EXEC sp_RENAME 'table_name.oldColumn_name' , 'newColumn_name', 'COLUMN'