SQLite Java 多列主键不工作

Question

我知道有很多关于这个主题的问题，但不幸的是到目前为止没有任何帮助。我想要我的数据库中有一个多列主键。数据库位于服务器上，应该为许多用户持有证书。证书的主键是序列号 + 颁发者（这使证书唯一），除此之外 - 因为多个用户可以拥有此证书 - 我想添加（唯一）用户名。因此，我的主键应该是（序列号、发行人、用户名）。但它不起作用。一旦我尝试再次添加证书但对于不同的用户，他就会覆盖旧条目。

我的数据库设置如下

stmt.execute(
                "CREATE TABLE IF NOT EXISTS certificates (" +
                        "serial VARCHAR NOT NULL," +     // serial
                        "issuer VARCHAR NOT NULL," +     // issuer
                        "subject VARCHAR NOT NULL," +    // subject
                        "publickey VARCHAR NOT NULL," +  // public key
                        "notbefore DATETIME NOT NULL," + // not before
                        "notafter DATETIME NOT NULL," +  // not after
                        "certdata BLOB," +               // DER-encoded certificate
                        "revoked BOOLEAN NOT NULL," +    // is certificate revoked
                        "trusted BOOLEAN NOT NULL," +    // is certificate trusted
                        "untrusted BOOLEAN NOT NULL," +  // is certificate untrusted
                        "S BOOLEAN NOT NULL," +          // is certificate in the S set
                        "" +                             //  of the related assessment
                        "username TEXT NOT NULL," + // the user to which this certificate belongs
                        "" +
                        "CHECK (S IN (0, 1))," +
                        "CHECK (trusted IN (0, 1))," +
                        "CHECK (untrusted IN (0, 1))," +
                        "CHECK (NOT (trusted = 1 AND untrusted = 1))," +
                        "" +
                        "FOREIGN KEY (username)" +
                        "  REFERENCES users(username)" +
                        "  ON DELETE CASCADE," +
                        "PRIMARY KEY (serial, issuer, username))");

语句stmt来自

poolManager = new MiniConnectionPoolManager(dataSource, MAX_CONNECTIONS);

    try (Connection connection = poolManager.getConnection();
         Statement stmt = connection.createStatement()) {

我已经尝试了 UNIQUE（序列号、发行人、用户名）和 CONSTRAINTS uniqueEntry PRIMARY KEY（序列号、发行人、用户名），而不是 PRIMARY KEY（序列号、发行人、用户名）。两者给出相同的结果。

我正在使用 IntelliJ 15.0.3，方言是 SQLite，驱动程序是 sqlite-jdbc-2.8.11.2.jar .

是的，还有一些 table，但它们的结构相同。如果我找到了这个 table 的解决方案，所有其他人都应该相应地工作。

Answer 1

作为用户 CL。指出，我们还必须注意插入是如何完成的。问题在于我得到的代码的编写方式，其设计方式是必须将主键单独提供给所有其他 table-entries

SQLite Java 多列主键不工作

SQLite Java Multiple columns primary key not working

java

sqlite

intellij-idea

composite-primary-key