Question

当我尝试编译此程序时：

PROCEDURE GET_NUMBER_PROPOSED_TRADES(p_client_id NUMBER, p_curr_id NUMBER, p_cursor  OUT sys_refcursor)
IS
BEGIN  
  OPEN p_cursor FOR
      IF (p_client_id = 0 AND p_curr_id = 0)
      THEN
        SELECT COUNT (DISTINCT NVL(id,0)) AS "Proposed_Trade_Number"  FROM proposed_trade;
      ELSE
        SELECT COUNT (DISTINCT NVL(id,0)) AS "Proposed_Trade_Number"  FROM proposed_trade WHERE client_id = p_client_id AND ccy_id = p_curr_id;
      END IF;
END GET_NUMBER_PROPOSED_TRADES;

发生此错误：

错误（9,11）：PLS-00103：当遇到以下情况之一时遇到符号“IF”:( - + case mod new not null select with continue avg count current exists last min before sql stddev sum variance execute forall合并时间时间间隔日期管道

错误（18,1）：PLS-00103：遇到以下其中一项时遇到符号“PROCEDURE”：end not pragma final instantiable order overriding static member constructor map“static”符号被替换为“程序”继续下去。

错误（25,1）：PLS-00103：遇到以下其中一项时遇到符号“PROCEDURE”：end not pragma final可实例化的顺序覆盖静态成员构造函数映射符号“static”替换为“PROCEDURE”继续。

但问题是，如果我只是删除IF条件，我可以轻松编译它，所以这对我来说是个新的

Answer 1

您无法在游标声明中嵌套if条件，它只是无效的语法。解决这个问题的一种方法是使用单个查询，并使用where子句条件来获得您尝试从if得到的相同逻辑：

OPEN p_cursor FOR
    SELECT COUNT (DISTINCT NVL(id,0)) AS "Proposed_Trade_Number"  
    FROM   proposed_trade 
    WHERE  (p_client_id = 0 AND p_curr_id = 0) OR 
           (client_id = p_client_id AND ccy_id = p_curr_id);

Oracle：PLS-00103在有条件的过程中发生

1 个答案: