Question

每当我尝试向表中插入值时，我都会不断收到消息“ ORA-02290：违反检查约束”。

这是表STORE的代码：

    CREATE TABLE STORE
    (
    StoreID INT PRIMARY KEY,
    StoreName VARCHAR2(30) NOT NULL,
    City VARCHAR2(30) NOT NULL,
    Country VARCHAR2(30) NOT NULL CHECK (Country IN('Singapore','India','United States','Peru','Phillippines','People''s Republic of China','Canada')),
    Phone VARCHAR2(30) NOT NULL,
    Fax VARCHAR2(30),
    Email VARCHAR2(50) UNIQUE,
    Contact VARCHAR2(30) NOT NULL,
    UNIQUE (StoreName, City)
    );

这是我要完成的INSERT语句：

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)
    VALUES (1, 'Eastern Sales', 'Singapore', 'Singapore', '65-543-1233', '65-543-1239', 'Sales@EasternSales.com.sg', 'Jeremy');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)
    VALUES (2, 'Eastern Treasures', 'Manila', 'Philippines', '63-2-654-2344', '63-2-654-2349', 'Sales@EasternTreasures.com.ph', 'Gracielle');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)   
    VALUES (3, 'Jade Antiques', 'Singapore', 'Singapore', '65-543-3455', '95-543-3459', 'Sales@JadeAntiques.com.sg', 'Swee Lai');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)    
    VALUES (4, 'Andes Treasures', 'Lima', 'Peru', '51-14-765-4566', '51-14-765-4569', 'Sales@AndesTreasures.com.pe', 'Juan Carlos');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)    
    VALUES (5, 'Eastern Sales', 'Hong Kong', 'People''s Republic of China', '852-876-5677', '852-876-5679', 'Sales@EasternSales.com.hk', 'Sam');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)
    VALUES (6, 'Eastern Treasures', 'New Delhi', 'India', '91-11-987-6788', '91-11-987-6789', 'Sales@EasternTreasures.com.in', 'Deepinder');

    INSERT INTO STORE(StoreID, StoreName, City, Country, Phone, Fax, Email, Contact)    
    VALUES (7, 'European Imports', 'New York City', 'United States', '800-432-8766', '800-432-8769', 'Sales@EuropeanImports.com.sg', 'Marcello');

它创建了第4，第6和第7个值，但其余部分则没有。怎么了？

Answer 1

您违反了CHECK约束，因为允许的值与您尝试插入的值不匹配：

检查（国家IN（“新加坡”，“印度”，“美国”，“秘鲁”，“菲律宾”，“中华人民共和国”，“加拿大”））

值（2，“东方宝藏”，“马尼拉”，“菲律宾”，“ 63-2-654-2344”，“ 63-2-654-2349”，“ Sales@EasternTreasures.com.ph”， 'Gracielle'）

约束中的

'Phillippines'与insert语句中的'Philippines'不匹配。

将CHECK约束中的国家/地区名称更正为'Philippines'，它将可以正常工作：

CREATE TABLE STORE
    (
    StoreID INT PRIMARY KEY,
    StoreName VARCHAR2(30) NOT NULL,
    City VARCHAR2(30) NOT NULL,
    Country VARCHAR2(30) NOT NULL 
      CHECK (Country IN(
        'Singapore','India','United States','Peru','Philippines','People''s Republic of China','Canada')),
    Phone VARCHAR2(30) NOT NULL,
    Fax VARCHAR2(30),
    Email VARCHAR2(50) UNIQUE,
    Contact VARCHAR2(30) NOT NULL,
    UNIQUE (StoreName, City)
    );

ORA-02290：违反检查约束

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