索引錯誤時缺少IN或OUT參數

Question

我使用預處理sql 使用JDBC驅動程序版本9.2.0.8.0（classes12.jar）時沒有錯誤但是，只有在稍後升級到版本9.2.0.8.0後纔會發生此錯誤。 錯誤代碼是在索引缺少IN或OUT參數

以下是我的代碼。

BEGIN 
    SELECT sysdate 
    INTO :today 
    FROM dual; 

    BEGIN 
     SELECT sysdate 
     INTO :today2 
     FROM dual; 
    EXCEPTION 
     WHEN OTHERS THEN 
     :today2 := NULL; 
    END; 

    SELECT sysdate 
    INTO :today4 
    FROM dual; 
END; 

我的問題是，不能使用EXCEPTION，sql？還是有其他解決方案可用於A？

我的JSP文件

<%@ page contentType="text/html; charset=euc-kr"%> 
<%@ page import="java.util.*, java.io.*, java.sql.*"%><%!private Connection conn; 
    private PreparedStatement stmt; 
    private DatabaseMetaData meta; 

    //********************************************************************************* 
    // 여기에 DB정보를 적어 주십시오. 
    public static final String URL = "jdbc:oracle:thin:@192.168.10.38:1521:ora920"; 
    public static final String DRIVER_NAME = "oracle.jdbc.driver.OracleDriver"; 
    public static final String ID = "scott"; 
    public static final String PW = "tiger"; 

    //********************************************************************************* 

    public void jspInit() 
    { 
     try 
     { 
      Class.forName(DRIVER_NAME); 
      conn = DriverManager.getConnection(URL, ID, PW); 
     } 
     catch(ClassNotFoundException ce) 
     { 
      //getServletContext().log("Error: Database Driver Class : " + DB_CLASS_NMAE); 
      ce.printStackTrace(); 
     } 
     catch(SQLException ioe) 
     { 
      ioe.printStackTrace(); 
      //getServletContext().log("Error: DB Connection Error : " + ioe); 
     } 
    } 

    public void jspDestroy() 
    { 
     try 
     { 
      if(conn != null) 
       conn.close(); 
     } 
     catch(SQLException ioe) 
     { 
      ioe.printStackTrace(); 
      //getServletContext().log("Error: Server Write Exception : " + ioe); 
     } 
    }%> 
<% 
    conn = DriverManager.getConnection(URL, ID, PW); 

    ResultSet empCursor = null; 
    try 
    { 
     //pstmt = rdconn.prepareStatement(query); 
     //stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE); 
     meta = conn.getMetaData(); 

     out.println("JDBC Driver Information<br>"); 
     out.println("---------------------------------<br>"); 
     out.println("version; " + meta.getDriverVersion() + "<br>"); 
     out.println("<br>"); 
     out.println("Database Information<br>"); 
     out.println("---------------------------------<br>"); 
     out.println("database name; " + meta.getDatabaseProductName() + "<br>"); 
     out.println("version; " + meta.getDatabaseProductVersion() + "<br>"); 
     out.println("<br>"); 

    } 
    catch(Exception e) 
    { 
     out.println(toHangle("Error occurred<br>") + toHangle(e.toString())); 
    } 
    finally 
    { 
    } 

    out.println("---------------------------------<br>"); 
    out.println("Pretreatment test<br>"); 
    out.println("---------------------------------<br>"); 
    // 전처리 테스트 
    StringBuilder plsql = new StringBuilder(); 
    plsql.append("BEGIN\n"); 
    plsql.append(" SELECT sysdate\n"); 
    plsql.append("  INTO :today1\n"); // 첫 번째 Parameter 
    plsql.append("  FROM dual;\n"); 
    plsql.append(" BEGIN\n"); 
    plsql.append("  SELECT sysdate\n"); 
    plsql.append("   INTO :today2\n"); // 두 번째 Parameter 
    plsql.append("   FROM dual;\n"); 
    // 에러 발생 원인은 EXCEPTION 안 parameter를 사용하는 경우 
    plsql.append(" EXCEPTION\n"); 
    plsql.append("  WHEN OTHERS THEN\n"); 
    plsql.append("   :today2 := NULL;\n"); // 두 번째 Parameter 
    // 
    plsql.append(" END;\n"); 
    plsql.append("  SELECT sysdate\n"); 
    plsql.append("   INTO :today3\n"); // 세 번째 Parameter 
    plsql.append("   FROM dual;\n"); 
    plsql.append("END;\n"); 

    out.println("<pre>" + plsql.toString() + "</pre>"); 

    try 
    { 
     out.println("CallableStatement cstmt = conn.prepareCall()<br>"); 
     CallableStatement cstmt = conn.prepareCall(plsql.toString()); 

     // today1~3 갯수에 맞게 3개의 OutParameter를 등록 
     for(int j = 1; j <= 3; j++) 
     { 
      out.println("cstmt.registerOutParameter(" + j + ", " + Types.CHAR + ")<br>"); 
      cstmt.registerOutParameter(j, Types.CHAR); 
     } 


     // 최신 Oracle JDBC Driver에서 에러 발생 
     out.println("// 최신 Oracle JDBC Driver에서 에러 발생<br>"); 
     out.println("cstmt.execute()<br>"); 
     cstmt.execute(); 
     out.println("<font color=blue>전처리 실행 성공!!</font>"); 
    } 
    catch(Exception e) 
    { 
     out.println("<font color=red>전처리 실행 실패!!</font>"); 
     out.println("<br>---------------------------------<br>"); 
     out.println("Exection<br>"); 
     out.println("<pre>"); 
     e.printStackTrace(new PrintWriter(out)); 
     out.println("</pre>"); 
    } 
%> 
<%!private String toHangle(String oldString) throws UnsupportedEncodingException 
    { 
     if(oldString != null) 
     { 
      return new String(oldString.getBytes("KSC5601"), "8859_1"); 
     } 
     else 
     { 
      return oldString; 
     } 
    }%> 

Answer 1

試着改變你的代碼是這樣的：

cstmt.registerOutParameter("today1", Types.CHAR); 
cstmt.registerOutParameter("today2", Types.CHAR); 
cstmt.registerOutParameter("today3", Types.CHAR);