Basit SELECT [duplicate]yaparken "order" tablosundaki veya yakınındaki sözdizimi hatası

0

Soru

İyi günler, topluluk!

Sorun:

SpringData kullanarak dB'den siparişleri seçmeye çalışıyorum ve CrudRepository<Order, Long>, ancak sonraki hataları alma:

2021-11-22 12:34:27.787  WARN 3119 --- [nio-8080-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 42601
2021-11-22 12:34:27.788 ERROR 3119 --- [nio-8080-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : ERROR: syntax error at or near "order"
  Position: 1136

Kullanıcı, Sözleşme veya Üretici gibi başka varlıklar normal olarak getiriliyor. Ayrıca OrderProduct olmadan Sipariş almayı denedim ama hata aynıydı.

Birimler:

OrderEntity

@Entity
@Table(name = "order")
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long  id;
    public Long   getId() { return id; }

    @ManyToOne
    @JoinColumn(name = "creator_id")
    private User creator;
    public User  getCreator() { return creator; }
    public void  setCreator(final User creator) { this.creator = creator; }

    @ManyToOne
    @JoinColumn(name = "contract_id")
    private Contract contract;
    public Contract  getContract() { return contract; }
    public void      setContract(final Contract contract) { this.contract = contract; }

    @OneToMany(cascade = CascadeType.ALL, mappedBy = "order")
    private List<OrderProduct> orderProducts;
    public void                setOrderProducts(final List<OrderProduct> orderProducts) { this.orderProducts = orderProducts; }
    public List<OrderProduct>  getOrderProducts() { return orderProducts; }

    private Date arrivingDate;
    public void  setArrivingDate(final Date arrivingDate) { this.arrivingDate = arrivingDate; }
    public Date  getArrivingDate() { return arrivingDate; }

    @Enumerated(EnumType.STRING)

    private Status status;
    public void    setStatus(final Status status) { this.status = status; }
    public Status  getStatus() { return status; }

    private Date creationDate;
    public void  setCreationDate(final Date creationDate) { this.creationDate = creationDate; }
    public Date  getCreationDate() { return creationDate; }

    private String document;
    public void    setDocument(final String document) { this.document = document; }
    public String  getDocument() { return document; }


    protected Order() {}
    public Order(User creator, Contract contract, List<OrderProduct> orderProducts, Date arrivingDate, String document, Status status, Date creationDate) {
        this.creator       = creator;
        this.contract      = contract;
        this.arrivingDate  = arrivingDate;
        this.status        = status;
        this.creationDate  = creationDate;
        this.document      = document;
        this.orderProducts = orderProducts;
    }
}

OrderProductEntity

@Entity
@Table(name = "order_product")
public class OrderProduct {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long  id;
    public Long   getId() { return id; }

    @ManyToOne
    @JoinColumn(name = "product_id")
    private Product product;
    public Product  getProduct() { return product; }
    public void     setProduct(final Product product) { this.product = product; }

    @ManyToOne
    @JoinColumn(name = "order_id")
    private Order order;
    public Order  getOrder() { return order; }
    public void   setOrder(final Order order) { this.order = order; }

    private Integer quantity;
    public void setQuantity(final Integer quantity) { this.quantity = quantity; }
    public Integer getQuantity() { return quantity; }


    protected OrderProduct() {}
    public OrderProduct(final Product product, final Order order, final Integer quantity) {
        this.product  = product;
        this.order    = order;
        this.quantity = quantity;
    }
}

Kod getiriliyor

@Override
public Order findById(final Long id) throws Exception {
    return orderRepository.findById(id)
        .orElseThrow(() -> new Exception("There is no order by id:" + id));
}

PSQL hata ayıklamasını hazırda bekletme:

select
        order0_.id as id1_2_0_,
        order0_.arriving_date as arriving2_2_0_,
        order0_.contract_id as contract6_2_0_,
        order0_.creation_date as creation3_2_0_,
        order0_.creator_id as creator_7_2_0_,
        order0_.document as document4_2_0_,
        order0_.status as status5_2_0_,
        contract1_.id as id1_1_1_,
        contract1_.creator_id as creator_4_1_1_,
        contract1_.end_date as end_date2_1_1_,
        contract1_.producer_id as producer5_1_1_,
        contract1_.start_date as start_da3_1_1_,
        user2_.id as id1_0_2_,
        user2_.email as email2_0_2_,
        user2_.name as name3_0_2_,
        user2_.password as password4_0_2_,
        user2_.phone as phone5_0_2_,
        user2_.position as position6_0_2_,
        user2_.surname as surname7_0_2_,
        producer3_.id as id1_4_3_,
        producer3_.city as city2_4_3_,
        producer3_.contact_email as contact_3_4_3_,
        producer3_.contact_name as contact_4_4_3_,
        producer3_.contact_phone as contact_5_4_3_,
        producer3_.country as country6_4_3_,
        producer3_.street as street7_4_3_,
        user4_.id as id1_0_4_,
        user4_.email as email2_0_4_,
        user4_.name as name3_0_4_,
        user4_.password as password4_0_4_,
        user4_.phone as phone5_0_4_,
        user4_.position as position6_0_4_,
        user4_.surname as surname7_0_4_
    from

    order order0_ left outer join
        contract contract1_
            on order0_.contract_id=contract1_.id
    left outer join
        client user2_
            on contract1_.creator_id=user2_.id
    left outer join
        producer producer3_
            on contract1_.producer_id=producer3_.id
    left outer join
        client user4_
            on order0_.creator_id=user4_.id
    where
        order0_.id=?

DB diyagramı:

diyagram

Zaman ve ilgi için minnettarım.

hibernate java postgresql spring
2021-11-22 11:23:30
1

En iyi cevabı

-2

Order sql'de ayrılmış bir sözcük olduğundan, ' gibi backticks ekleyerek tablonuzun adı olduğunu belirtmeniz gerekir ` Varlığınızı böyle eklemek yerine :

@Table(name = "order") 

Bunu ekle :

@Table(name = "`order`")

İşte, kelime order backticks içine alınır.

2021-11-22 11:31:34

Backticks? Çift tırnak " demek istiyorsun. MySQL bile çift tırnak işaretlerini destekler.
Frank Heikens

Backticks, ayrıca order adlı bir tablom var ve mysql'de bu şekilde erişiliyor.
njari

Hayır, öyle değil, herhangi bir veritabanında deneyin ve bu sadece mysql'de çalışır. PostgreSQL, SQL Server, Oracle, backtick'leri kabul etmiyorlar.
Frank Heikens

Çift tırnak denedim ama işe yaramadı. Mariadb'deyim.
njari

Postgres ve standart sql'de anahtar kelimeleri alıntılamak için Backtick'ler geçersizdir.
a_horse_with_no_name

ANSI_QUOTES kontrol edin mariadb.com/kb/en/sql-mode/#ansi_quotes MySQL/mariadb'yi standart SQL işlevselliğini kullanmaya zorlamak için.
Frank Heikens

Teşekkürler, bunun standart SQL olmadığını bilmiyordum! Her gün yeni bir şey.
njari

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