Derby和SQL請求問題：如何確定默認模式？

我想在我的學校項目中使用德比，但我有一些問題。我的數據庫名爲theaterDB，derby 10.2.1，JDBC 3.0.0Derby和SQL請求問題：如何確定默認模式？

我通過java創建的每個SQL請求都不成功......我無法理解爲什麼。例如，請求： SELECT * FROM User返回異常：

java.sql.SQLSyntaxErrorException: Schema 'ADMIN' does not exist

不工作的另一個SQL：

ALTER table theaterDB."Projection" ADD INDEX(fk_Projection_Movie(Movie_id));

Syntax error: Encountered "" at line 1, column 45.

這裏是java：

public Connection getConnection() 
    { 
     try 
     { 
      Class.forName("org.apache.derby.jdbc.EmbeddedDriver"); 
      System.out.println("Connection to: jdbc:derby:C:\\Users\\acouty\\theaterDB;create=true"); 
      // DriverManager.get 
      return DriverManager.getConnection("jdbc:derby:C:\\Users\\acouty\\theaterDB;create=true", "admin", ""); 
     } 
     catch (final Exception e) 
     { 
      e.printStackTrace(); 
      return null; 
     } 
    } 
public List<User> listUsers() 
    { 
     final ArrayList<User> users = new ArrayList<User>(); 
     System.out.println("List user request"); 
     try 
     { 
      final Connection connection = getConnection(); 
      final String query = "SELECT * FROM User"; 
      System.out.println("query is : " + query); 
      final ResultSet rs = connection.createStatement().executeQuery(query); 
      while (rs.next()) 
      { 
       System.out.println("salut"); 
      } 
      return null; 
     } 
     catch (final Exception e) 
     { 
      e.printStackTrace(); 
     } 
     return null; 
    }

這裏是.SQL：

CREATE TABLE theaterDB."Users" 
(
    id INTEGER NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), 
    name VARCHAR(45) NOT NULL, 
    lastname VARCHAR(45) NOT NULL , 
    email VARCHAR(45) NOT NULL , 
    adress VARCHAR(45) NOT NULL , 
    city VARCHAR(45) NOT NULL , 
    zip VARCHAR(45) NOT NULL , 
    login VARCHAR(45) NOT NULL , 
    password VARCHAR(45) NOT NULL , 
    admin SMALLINT NOT NULL DEFAULT 0, 
    PRIMARY KEY (id) 
); 

CREATE TABLE theaterDB."Movie" 
(
    id INT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), 
    title VARCHAR(45) NOT NULL , 
    resume VARCHAR(500) , 
    genre VARCHAR(60) , 
    grade INT , 
    review_pub VARCHAR(200) , 
    review_gen VARCHAR(200) , 
    poster VARCHAR(100) , 
    duration INT , 
    release_date VARCHAR(45) , 
    PRIMARY KEY (id) 
); 

CREATE TABLE theaterDB."Projection" (
    id INT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), 
    date DATE , 
    length INT , 
    Movie_id INT NOT NULL , 
    price DECIMAL(10,0) , 
    location VARCHAR(45) NOT NULL , 
    place_nbr INT NOT NULL , 
    PRIMARY KEY (id) 
); 

ALTER TABLE theaterDB."Projection" 
    ADD FOREIGN KEY(Movie_id) 
    REFERENCES theaterDB."Movie" (id) 
    ON DELETE NO ACTION 
    ON UPDATE NO ACTION; 

CREATE TABLE theaterDB."command" 
(
    id INT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1), 
    Projection_id INT NOT NULL , 
    User_id INT NOT NULL , 
    paid SMALLINT NOT NULL , 
    PRIMARY KEY (id) 
); 

ALTER TABLE theaterDB."command" 
    ADD FOREIGN KEY(Projection_id) 
    REFERENCES theaterDB."Projection" (id) 
    ON DELETE NO ACTION 
    ON UPDATE NO ACTION; 

ALTER TABLE theaterDB."command" 
    ADD FOREIGN KEY(User_id) 
    REFERENCES theaterDB."Users" (id) 
    ON DELETE NO ACTION 
    ON UPDATE NO ACTION;

謝謝

來源

2013-10-11 ogdabou

也許你需要模式名稱，如select * from myStuff.User; –

嗨，諾普，我試了theaterDB.User，theaterDB.'User'...我添加其他查詢不起作用... – ogdabou

'用戶'是一個保留的關鍵字，需要特殊待遇。我建議你將表格重命名爲USERS。 –

我不得不改變的executeQuery執行和用戶爲「THEATERDB」「USERS」

這裏有工作要求：

SELECT * FROM "THEATERDB"."Users" 


insert into "THEATERDB"."Users"(NAME, LASTNAME, EMAIL, ADRESS, CITY, ZIP, LOGIN, PASSWORD, ADMIN) values ('salut', 'salut', 'salut', 'salut', 'salut', 'salut', 'salut', 'salut', 1)

ks給你幫助:)。

來源

2013-10-11 10:42:51 ogdabou

Derby和SQL請求問題：如何確定默認模式？

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