Не работает merge запрос к ORACLE BD

При заполнении параметров подстановка productName идёт напрямую, без кавычек, to_char не работает Мой код:

MERGE INTO STORE_PRODUCTS ps
USING (
    SELECT :storeId AS store_id,
           p.ID AS product_id,
           :productCount AS product_count
    FROM products p
    WHERE p.NAME = :productName
) src
ON (ps.storeid = src.store_id AND ps.productid = src.product_id)
WHEN MATCHED THEN
    UPDATE SET ps.COUNTPRODUCT = PS.COUNTPRODUCT + src.product_count
WHEN NOT MATCHED THEN
    INSERT (storeid, productid, COUNTPRODUCT)
    VALUES (src.store_id, src.product_id, src.product_count);

Вывод консоли:

MERGE INTO STORE_PRODUCTS ps
         USING (
             SELECT 1 AS store_id,
                    p.ID AS product_id,
                    10 AS product_count
             FROM products p
             WHERE p.NAME = CARS
         ) src
         ON (ps.storeid = src.store_id AND ps.productid = src.product_id)
         WHEN MATCHED THEN
             UPDATE SET ps.COUNTPRODUCT = PS.COUNTPRODUCT + src.product_count
         WHEN NOT MATCHED THEN
             INSERT (storeid, productid, COUNTPRODUCT)
             VALUES (src.store_id, src.product_id, src.product_count)
[2024-09-03 23:21:29] [42000][904] ORA-00904: "CARS": недопустимый идентификатор
[2024-09-03 23:21:29] Position: 170

JAVA код выглядит так, при выполнении код зависает, ошибки не выдаёт

public void mergeProducts(int storeId, ProductEnum productEnum, int countProduct) {
        String sql = "MERGE INTO STORE_PRODUCTS ps\n" +
                "USING (\n" +
                "    SELECT ? AS store_id,\n" +
                "           p.ID AS product_id,\n" +
                "           ? AS product_count\n" +
                "    FROM products p\n" +
                "    WHERE p.NAME = ?\n" +
                ") src\n" +
                "ON (ps.storeid = src.store_id AND ps.productid = src.product_id)\n" +
                "WHEN MATCHED THEN\n" +
                "    UPDATE SET ps.COUNTPRODUCT = PS.COUNTPRODUCT + src.product_count\n" +
                "WHEN NOT MATCHED THEN\n" +
                "    INSERT (storeid, productid, COUNTPRODUCT)\n" +
                "    VALUES (src.store_id, src.product_id, src.product_count)";
        try (PreparedStatement statement = connection.prepareStatement(sql)) {
            statement.setInt(1, storeId);
            statement.setInt(2, countProduct);
            statement.setString(3, productEnum.toString());
            statement.executeUpdate();
        } catch (SQLException e) {
            System.err.println("Error merge " + e.getMessage());
        }
    }