小编Sau*_*rav的帖子

正如标题所示，我在尝试从 Java 代码调用 Oracle 函数时遇到异常。我尝试了一些事情但没有成功。此时我不知道该怎么办。任何帮助或建议将不胜感激。提前致谢。

Java

CallableStatement cstmt = p_con.prepareCall("{? = CALL FXRATE_ENTITY(?, ?, ?, ?)}");
         cstmt.registerOutParameter(1, java.sql.Types.INTEGER);

         cstmt.setString(2, "SCR");
         cstmt.setString(3,l_srccur);
         cstmt.setString(4, l_tfcurr);
         cstmt.setString(5, "B001");

         cstmt.execute();
         res = cstmt.getString(1);

Oracle Function

FUNCTION FXRATE_ENTITY(CODCURRBASE IN VARCHAR, LCODCURRFROM IN VARCHAR, LCODCURRTO IN VARCHAR, LIDENTITY IN VARCHAR)
  RETURN NUMBER IS
  CODCUR_L VARCHAR2(3);
BEGIN
  IF (LCODCURRTO = '*') THEN
    RETURN NVL(FXRATE(CODCURRBASE, LCODCURRFROM, CODCURRBASE, LIDENTITY),
               0);
  ELSE
    RETURN NVL(FXRATE(CODCURRBASE, LCODCURRFROM, LCODCURRTO, LIDENTITY), 0);
  END IF;
END;