使用java将插入的行获取到Oracle

我正在构建一个java程序，将数据插入oracle数据库。 我的问题是，我需要插入到两个表中，并在序列中的insert get next val之前，达到我在表中使用的唯一行。 但我需要表_B的相同id进行连接。 （我无法获取getval，因为如果其他用户使用该程序会怎么样…） 所以我需要知道，当我使用executeql（sql）命令作为回报时，我看到了我提交的内容

现在我使用我有名字和日期的id，所以我选择名字和日期是刚刚插入的id。 但这不是最好的，因为一天之内我可以插入更多的名字。所以现在这不是唯一的。 比如：

此处的id按顺序自动递增

而不是另一个sql运行：

inert into table_b  ( id,someval) val ( select id from table_a where
name ='Ryan', date='2014.01.01, 23)

所以我需要像这样的东西：

 system.out.println(smtp.executesql(sql).whatIinsertednow())
*than console:* '1 row insered (id,name,date) : ( 1, Ryan, 2014.01.01)

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您可以通过在INSERT语句中使用子句来实现这一点：

INSERT INTO table_a ( name,date) val ( 'Ryan','2014.01.01') RETURNING id INTO ?

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您可以通过在INSERT语句中使用子句来实现这一点：

INSERT INTO table_a ( name,date) val ( 'Ryan','2014.01.01') RETURNING id INTO ?

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PreparedStatement prepareStatement=connection.prepareStatement（“插入…”

我已经找到了答案，这是完美的作品。我可以插入从JAVA和它的返回键

完整版本：

CREATE TABLE STUDENTS
(
   STUDENT_ID   NUMBER NOT NULL PRIMARY KEY,
   NAME         VARCHAR2 (50 BYTE),
   EMAIL        VARCHAR2 (50 BYTE),
   BIRTH_DATE   DATE
);


CREATE SEQUENCE STUDENT_SEQ
   START WITH 0
   MAXVALUE 9999999999999999999999999999
   MINVALUE 0;

还有Java代码

String QUERY = "INSERT INTO students "+
               "  VALUES (student_seq.NEXTVAL,"+
               "         'Harry', 'harry@hogwarts.edu', '31-July-1980')";

// load oracle driver
Class.forName("oracle.jdbc.driver.OracleDriver");

// get database connection from connection string
Connection connection = DriverManager.getConnection(
        "jdbc:oracle:thin:@localhost:1521:sample", "scott", "tiger");

// prepare statement to execute insert query
// note the 2nd argument passed to prepareStatement() method
// pass name of primary key column, in this case student_id is
// generated from sequence
PreparedStatement ps = connection.prepareStatement(QUERY,
        new String[] { "student_id" });

// local variable to hold auto generated student id
Long studentId = null;

// execute the insert statement, if success get the primary key value
if (ps.executeUpdate() > 0) {

    // getGeneratedKeys() returns result set of keys that were auto
    // generated
    // in our case student_id column
    ResultSet generatedKeys = ps.getGeneratedKeys();

    // if resultset has data, get the primary key value
    // of last inserted record
    if (null != generatedKeys && generatedKeys.next()) {

        // voila! we got student id which was generated from sequence
        studentId = generatedKeys.getLong(1);
    }

}

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来源：

PreparedStatement prepareStatement=connection.prepareStatement（“插入…”）

我已经找到了答案，这是完美的作品。我可以插入从JAVA和它的返回键

完整版本：

CREATE TABLE STUDENTS
(
   STUDENT_ID   NUMBER NOT NULL PRIMARY KEY,
   NAME         VARCHAR2 (50 BYTE),
   EMAIL        VARCHAR2 (50 BYTE),
   BIRTH_DATE   DATE
);


CREATE SEQUENCE STUDENT_SEQ
   START WITH 0
   MAXVALUE 9999999999999999999999999999
   MINVALUE 0;

还有Java代码

String QUERY = "INSERT INTO students "+
               "  VALUES (student_seq.NEXTVAL,"+
               "         'Harry', 'harry@hogwarts.edu', '31-July-1980')";

// load oracle driver
Class.forName("oracle.jdbc.driver.OracleDriver");

// get database connection from connection string
Connection connection = DriverManager.getConnection(
        "jdbc:oracle:thin:@localhost:1521:sample", "scott", "tiger");

// prepare statement to execute insert query
// note the 2nd argument passed to prepareStatement() method
// pass name of primary key column, in this case student_id is
// generated from sequence
PreparedStatement ps = connection.prepareStatement(QUERY,
        new String[] { "student_id" });

// local variable to hold auto generated student id
Long studentId = null;

// execute the insert statement, if success get the primary key value
if (ps.executeUpdate() > 0) {

    // getGeneratedKeys() returns result set of keys that were auto
    // generated
    // in our case student_id column
    ResultSet generatedKeys = ps.getGeneratedKeys();

    // if resultset has data, get the primary key value
    // of last inserted record
    if (null != generatedKeys && generatedKeys.next()) {

        // voila! we got student id which was generated from sequence
        studentId = generatedKeys.getLong(1);
    }

}

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来源：

您可以取回生成的ID值；您已经有了剩余的值？您可以取回生成的ID值；您已经有了剩余的值？但是我如何在java中获得它？（JDBC）看看，但是我如何在java中获得它？（JDBC）看看