請幫忙看看！一個存儲過程調用時出現錯誤 ( 积分: 100 )

一個存儲過程在調用時，會報一個很奇怪的錯誤，返回的錯誤代碼看不懂。請大家幫忙看看！<br>CREATE&nbsp;OR&nbsp;REPLACE&nbsp;FUNCTION&nbsp;&quot;CHK_ORA&quot;&nbsp;(<br>&nbsp;&nbsp;p_param&nbsp;in&nbsp;varchar2,&nbsp;&nbsp;<br>&nbsp;&nbsp;p_msg&nbsp;out&nbsp;varchar2<br>)&nbsp;RETURN&nbsp;CHAR<br>IS<br>CURSOR....<br>begin<br>...<br>EXCEPTION<br>&nbsp;&nbsp;WHEN&nbsp;OTHERS&nbsp;THEN<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DECLARE<br> err_num&nbsp;NUMBER&nbsp;:=SQLCODE;<br> BEGIN<br> &nbsp;&nbsp;p_msg:='發生錯誤';<br> &nbsp;&nbsp;p_msg:=CONCAT(p_msg,TO_CHAR(err_num));<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RETURN('N');<br> END;<br>end;<br>在前端代碼裏調用這個存儲過程時，會報“對不起！發生錯誤！-8103”<br>請各位大俠們看看，這是哪裏的錯誤啊?