Question

我想从Java程序调用Teradata存储过程，任何人都可以拥有示例java程序吗？

由于一些限制，我无法在Teradata中创建一些UDF函数，所以我在Teradata中将这些函数开发为存储过程。

现在，我需要使用Java程序调用这些程序。

朋友，这是我的java程序，

public static String executeme(String x,String y) throws SQLException, ClassNotFoundException
 {
     System.out.println(" Message: 2 " );
     String connectionString = "jdbc:teradata://192.168.0.0/xyz,tmode=ANSI,charset=UTF8,DBS_PORT=1025,DATABASE=xyz";
     String user = "xyz";
     String passwd = "xxx";
     System.out.println(" Message: 3 after url " +x );
     String sCall = "{CALL "+x+"(?,?)}";
     System.out.println(" Message: after call str " +sCall );
     String result = null;

     try
     {
         Class.forName("com.teradata.jdbc.TeraDriver");

         Connection con = DriverManager.getConnection(connectionString, user, passwd);  
         System.out.println(" Message: after con "+con  );
         CallableStatement cStmt = con.prepareCall(sCall);
         cStmt.setString(1, y);
         cStmt.registerOutParameter(2, Types.VARCHAR);          
         result = cStmt.getString(2);   

         return result;  


     }       
     catch(ClassNotFoundException e)
     {
         System.out.println(" Message: " + e);
         return e.toString();    
     }



 }
public static void main(String[] args) throws SQLException, ClassNotFoundException {
    // TODO Auto-generated method stub

    String outs=null; 
    System.out.println(" Message: 1 " );
    outs = testing.executeme("sample_name", "ABCD");
     System.out.println(outs);
}

但是，在运行此程序时，我收到了错误：

Message: 1 
Message: 2 
Message: 3 after url ment_f_swithin
Message: after con com.teradata.jdbc.jdk6.JDK6_SQL_Connection@85ede7b
Exception in thread "main" java.sql.SQLException: [Teradata Database] [TeraJDBC 14.10.00.42] [Error 5510] [SQLState HY000] Invalid session mode for   procedure execution.
at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDatabaseSQLException  (ErrorFactory.java:308)
at com.teradata.jdbc.jdbc_4.statemachine.ReceiveInitSubState.action(ReceiveInitSubState.java:109)
at com.teradata.jdbc.jdbc_4.statemachine.StatementReceiveState.subStateMachine(StatementReceiveState.java:307)
at com.teradata.jdbc.jdbc_4.statemachine.StatementReceiveState.action(StatementReceiveState.java:196)
at com.teradata.jdbc.jdbc_4.statemachine.StatementController.runBody(StatementController.java:123)
at com.teradata.jdbc.jdbc_4.statemachine.StatementController.run(StatementController.java:114)
at com.teradata.jdbc.jdbc_4.TDStatement.executeStatement(TDStatement.java:386)
at com.teradata.jdbc.jdbc_4.TDStatement.prepareRequest(TDStatement.java:573)
at com.teradata.jdbc.jdbc_4.TDPreparedStatement.<init>(TDPreparedStatement.java:117)
at com.teradata.jdbc.jdk6.JDK6_SQL_PreparedStatement.<init>(JDK6_SQL_PreparedStatement.java:29)
at com.teradata.jdbc.jdk6.JDK6_SQL_CallableStatement.<init>(JDK6_SQL_CallableStatement.java:23)
at com.teradata.jdbc.jdk6.JDK6_SQL_Connection.constructCallableStatement(JDK6_SQL_Connection.java:87)
at com.teradata.jdbc.jdbc_4.TDSession.prepareCall(TDSession.java:1373)
at com.teradata.jdbc.jdbc_4.TDSession.prepareCall(TDSession.java:1408)
at com.teradata.jdbc.jdbc_4.TDSession.prepareCall(TDSession.java:1394)
at java_func.testing.executeme(testing.java:32)
at java_func.testing.main(testing.java:55)

我尝试使用所有3种模式ANSI，TERA，BTET。但我仍然得到同样的错误，请指导我

Answer 1

Connection conn1;

<... connect conn1 ...>

conn1.createStatement().execute("call proc_test()");

Answer 2

而不是这一行：

String connectionString = "jdbc:teradata://192.168.0.0/xyz,tmode=ANSI,charset=UTF8,DBS_PORT=1025,DATABASE=xyz";

我换成了

String connectionString = "jdbc:teradata://192.168.0.0/tmode=ANSI,charset=UTF8";

用于调用Teradata存储过程的示例Java程序

2 个答案: