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在循环中选择具有相似模式的列名称(Selecting Column Name With Similar Pattern in a Loop)

我有一个oracle数据库表,其中包含field_name_1,field_name_2,...,field_name_200列。 我想为每行数据选择并更新循环中的每一列,请提供帮助。

    DECLARE

    l_udf_vals  tablea%ROWTYPE;

    field_val_temp  varchar2(150);

    field_val   field_val_temp%TYPE;

    BEGIN
     FOR yu IN (SELECT a.*  FROM  tablea a, tableb b, tablec  c
                WHERE a.function_id=b.function_id AND b.col = c.col AND  )
      LOOP
      FOR i IN 1..200
       LOOP

        field_val_temp := 'field_val_'||i;

        SELECT field_val_temp INTO field_val FROM  tableb 
        WHERE  function_id='STDCUSAC' AND rec_key = yu.rec_key;

        IF field_val IS NOT NULL THEN
         UPDATE tablec  SET 'field_val_'||i = field_val;

       END LOOP;
       COMMIT;
      END LOOP; 
      COMMIT;
    END;

I have an oracle database table with columns field_name_1, field_name_2,..., field_name_200. I want to select and update each column in a loop for each row of data, kindly assist.

    DECLARE

    l_udf_vals  tablea%ROWTYPE;

    field_val_temp  varchar2(150);

    field_val   field_val_temp%TYPE;

    BEGIN
     FOR yu IN (SELECT a.*  FROM  tablea a, tableb b, tablec  c
                WHERE a.function_id=b.function_id AND b.col = c.col AND  )
      LOOP
      FOR i IN 1..200
       LOOP

        field_val_temp := 'field_val_'||i;

        SELECT field_val_temp INTO field_val FROM  tableb 
        WHERE  function_id='STDCUSAC' AND rec_key = yu.rec_key;

        IF field_val IS NOT NULL THEN
         UPDATE tablec  SET 'field_val_'||i = field_val;

       END LOOP;
       COMMIT;
      END LOOP; 
      COMMIT;
    END;

原文:https://stackoverflow.com/questions/24244740
更新时间:2024-06-01 06:06

最满意答案

我能在这里找到答案: https //stackoverflow.com/a/24017261/4762063

只有Fragment可见时,解决方法是有条件地膨胀Fragment的菜单。


I was able to find an answer here: https://stackoverflow.com/a/24017261/4762063

The work around is to conditionally inflate the Fragment's menu, only if the Fragment is visible.

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