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ArrayIndexOutOfBoundException - hsqldb?

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我目前正在使用hsqldb . 我的create语句看起来像这样:

CREATE TABLE Movie
(
    movieId INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    title VARCHAR(255) NOT NULL,
);

CREATE TABLE Playlist(
    id INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
);

CREATE TABLE PlaylistMovies(
    mid INTEGER FOREIGN KEY REFERENCES Movie(movieid),
    pid INTEGER FOREIGN KEY REFERENCES Playlist(id),     
    PRIMARY KEY (mid, pid)
);
//my assoziation table which safes the movie ids and playlist ids


alter table playlistmovies
   add constraint fk_plm_playlist
   foreign key (pid, mid) references playlist(id)
   on delete cascade;

当我想做的时候:

INSERT INTO PlaylistMovies(MID, PID) VALUES (1,1);

我明白了:

enter image description here

但是,数据存在于其他两个表中,因此应该可以参考吗?

这里的问题是什么以及如何解决?

UPDATE:

我使用的版本:hsqldb-2.2.8

java.sql.SQLException: java.lang.ArrayIndexOutOfBoundsException: 1 java.lang.Arr
ayIndexOutOfBoundsException: 1
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.execute(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing.executeSQL(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing.access$1000(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing$StatementExecRunnable.run(Unknow
n Source)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
        at java.awt.EventQueue.access$200(EventQueue.java:103)
        at java.awt.EventQueue$3.run(EventQueue.java:682)
        at java.awt.EventQueue$3.run(EventQueue.java:680)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:244)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:163)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)

        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
java.sql.SQLException: java.lang.ArrayIndexOutOfBoundsException: 1 java.lang.Arr
ayIndexOutOfBoundsException: 1
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.fetchResult(Unknown Source)
        at org.hsqldb.jdbc.JDBCStatement.execute(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing.executeSQL(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing.access$1000(Unknown Source)
        at org.hsqldb.util.DatabaseManagerSwing$StatementExecRunnable.run(Unknow
n Source)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
        at java.awt.EventQueue.access$200(EventQueue.java:103)
        at java.awt.EventQueue$3.run(EventQueue.java:682)
        at java.awt.EventQueue$3.run(EventQueue.java:680)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:244)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:163)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:151)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)

        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

UPDATE 2:

好,朋友们,

我尝试了一下,现在我知道当我不创建alter table时我可以轻松插入字段...

1 回答

  • 1

    该语句有错误,应该被HSQLDB拒绝 .

    alter table playlistmovies
    add constraint fk_plm_playlist
    foreign key (pid, mid) references playlist(id) -- mistake, FK has two columns, PK has one column
    on delete cascade;
    

    它被接受,但之后,当您尝试插入值时,原始错误会导致异常(更新:此问题已在HSQLDB 2.3.0中修复,并拒绝原始语句) .

    您不能在引用只有一列的PK的两列上使用FK

    您可以将ON DELETE CASCADE添加到原始CREATE TABLE

    CREATE TABLE PlaylistMovies(
    mid INTEGER FOREIGN KEY REFERENCES Movie(movieid) ON DELETE CASCADE,
    pid INTEGER FOREIGN KEY REFERENCES Playlist(id) ON DELETE CASCADE,     
    PRIMARY KEY (mid, pid)
    );
    

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