Question

我试图在IF条件中使用Cursor FOR循环并获得错误。以下是详细信息：

OPEN c_tab_var FOR v_sql;
 Loop
fetch c_tab_var into v_cur_inv_var;
exit when c_tab_var%notfound;

For v_cur_bde IN
(
    SELECT DISTINCT BDE.col1, BDE.col2
    FROM   tab BDE
    ORDER BY BDE.col1, BDE.col2, BDE.col3....
)

LOOP 
If v_cur_bde.col1 = v_cur_inv_var.col1 AND v_cur_bde.col2 = v_cur_inv_var.col2 THEN
(
    FOR v_cur_var IN
   (
      SELECT.....
   )
   LOOP
   -
   -
   -
)
ELSE
(
    -
  -
    -
)
END IF;

以下是我遇到的错误：

PROCEDURE ABC的编译错误

错误：PLS-00103：遇到以下任何一种情况时遇到符号“FOR”：

      ( - + case mod new not null <an identifier>
      <a double-quoted delimited-identifier> <a bind variable>
      continue avg count current exists max min prior sql stddev
      sum variance execute forall merge time timestamp interval
      date <a string literal with character set specification>
      <a number> <a single-quoted SQL string> pipe
      <an alternatively-quoted string literal with character set specification>
      <an alternative

行：57 文字：FOR v_cur_var IN

错误：PLS-00103：遇到以下其中一项时遇到符号“）”：

      ( begin case declare end exception exit for goto if loop mod
      null pragma raise return select update while with
      <an identifier> <a double-quoted delimited-identifier>
      <a bind variable> << continue close current delete fetch lock
      insert open rollback savepoint set sql execute commit forall
      merge pipe purge

线：210 文字:)）

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Answer 1

好吧，你只有很多语法错误。你开始三个循环，但没有一个＆＃34;结束循环＆＃34;例如，在那里。

我最接近没有语法错误的东西是：

BEGIN OPEN c_tab_var FOR v_sql;

LOOP FETCH c_tab_var INTO v_cur_inv_var;

  EXIT WHEN c_tab_var%NOTFOUND;

  FOR v_cur_bde IN (  SELECT   DISTINCT BDE.col1, BDE.col2
                        FROM   tab BDE
                    ORDER BY   BDE.col1, BDE.col2, BDE.col3)
  LOOP
     IF v_cur_bde.col1 = v_cur_inv_var.col1
        AND v_cur_bde.col2 = v_cur_inv_var.col2
     THEN
        FOR v_cur_var IN (SELECT   1 FROM DUAL) --add your select statement for this loop
        LOOP
           NULL; --do something
        END LOOP;
     ELSE
        NULL; -- do something else
     END IF;
  END LOOP;    END LOOP; END;

但如果不了解背景，就无法正确回答这个问题

CURSOR ...如果... CURSOR..else条件

1 个答案: