mysql find all uses of column name

mysql-column-search.sql

--http://stackoverflow.com/questions/193780/how-to-find-all-the-tables-in-mysql-with-specific-column-names-in-them
SELECT DISTINCT TABLE_NAME 
    FROM INFORMATION_SCHEMA.COLUMNS
    WHERE COLUMN_NAME IN ('columnA','ColumnB')
        AND TABLE_SCHEMA='YourDatabase';