public boolean dropTableIfExists(Connection conn, String tableName) throws SQLException {
        if (containsTable(tableName)) {
            try (Statement st = conn.createStatement()) {
                String sql = "drop table " + tableName;
                return st.execute(sql);
            }
        }
        return true;
    }
JDBC driver class.  Override as necessary.

@return
tika-eval/tika-eval-app/src/main/java/org/apache/tika/eval/app/db/JDBCUtil.java