oracle – 带有返回子句的JDBC批量插入

在使用JDBC Batch Insert语句时,有没有办法在JAVA中使用return子句获取受影响行的值？我能够获得受影响的单行所需的值.但不是所有批量插入？

try {
    String query = "INSERT INTO temp ( "
                 + "org_node_id,org_node_category_id,org_node_name,"
                 + "customer_id,created_by,created_date_time,"
                 + "updated_date_time,activation_Status )"
                 + " VALUES (seq_org_node_id.nextval,11527,'Abcd',9756,1,sysdate,'AC')"
    +" returning org_node_id,org_node_name INTO ?,?";
 
    con = DBUtils.getOASConnection();
 
    OraclePreparedStatement ps = (OraclePreparedStatement) con.prepareStatement(query);
    ps.registerReturnParameter(1,Types.INTEGER);
    ps.registerReturnParameter(2,Types.VARCHAR);
    ps.execute();
 
    ResultSet rs = ps.getReturnResultSet();
    rs.next();
 
    System.out.println("Org ID : "+ rs.getInt(1));
    System.out.println("Org Name : "+ rs.getString(2));
 
} catch (sqlException e) {
  e.printStackTrace();
}

ojdbc不支持批处理INSERT .. RETURNING语句,但 bulk insertion可以使用 PL/SQL’s FORALL命令工作.

给出一张桌子……

CREATE TABLE x (
  i INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,j VARCHAR2(50),k DATE DEFAULT SYSDATE
);

…和类型……

CREATE TYPE t_i AS TABLE OF NUMBER(38);
/
CREATE TYPE t_j AS TABLE OF VARCHAR2(50);
/
CREATE TYPE t_k AS TABLE OF DATE;
/

…你可以像running a bulk insert,and bulk collecting the results (as I’ve shown also in this blog post)一样解决这个限制：

try (Connection con = DriverManager.getConnection(url,props);
    CallableStatement c = con.prepareCall(
        "DECLARE "
      + "  v_j t_j := ?; "
      + "BEGIN "
      + "  FORALL j IN 1 .. v_j.COUNT "
      + "    INSERT INTO x (j) VALUES (v_j(j)) "
      + "    RETURNING i,j,k "
      + "    BULK COLLECT INTO ?,?,?; "
      + "END;")) {
 
    // Bind input and output arrays
    c.setArray(1,((OracleConnection) con).createARRAY(
        "T_J",new String[] { "a","b","c" })
    );
    c.registerOutParameter(2,Types.ARRAY,"T_I");
    c.registerOutParameter(3,"T_J");
    c.registerOutParameter(4,"T_K");
 
    // Execute,fetch,and display output arrays
    c.execute();
    Object[] i = (Object[]) c.getArray(2).getArray();
    Object[] j = (Object[]) c.getArray(3).getArray();
    Object[] k = (Object[]) c.getArray(4).getArray();
 
    System.out.println(Arrays.asList(i));
    System.out.println(Arrays.asList(j));
    System.out.println(Arrays.asList(k));
}

结果是：

[1,2,3]
[a,b,c]
[2018-05-02 10:40:34.0,2018-05-02 10:40:34.0,2018-05-02 10:40:34.0]

oracle – 带有返回子句的JDBC批量插入

猜你在找的Oracle相关文章