sql to change data type code example
Example 1: sql server alter column
ALTER TABLE table_name
ALTER COLUMN column_name new_data_type(size);
Example 2: sql alter column size
ALTER TABLE table_name
ALTER COLUMN column_name datatype;
ALTER TABLE table_name
ALTER COLUMN column_name new_data_type(size);
ALTER TABLE table_name
ALTER COLUMN column_name datatype;