авг 232013
 

Бележка: Изпълнение на цикъл върху списък от стойности (числови, низови и др.), които не са извлечени чрез заявка в PL/SQL, може стане по следния начин:

DECLARE
  -- 1. declare a list type
  TYPE STR_LIST_TYPE IS TABLE OF VARCHAR2(15);

  -- 2. declare the variable of the list
  V_STR_VALUES STR_LIST_TYPE;

  -- 3. optional variable to store single values
  V_STR_VALUE VARCHAR2(15);

BEGIN

  -- 4. initialize the list of values to be iterated in a for-loop
  V_STR_VALUES := STR_LIST_TYPE('String 1','String 2');

  -- 5. iterating over the values
  FOR INDX IN V_COLUMN_NAMES.FIRST..V_COLUMN_NAMES.LAST
  LOOP

    -- 6. accessing the value itself
    V_STR_VALUE := V_STR_VALUES(INDX);

  END LOOP;
END;
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  2 Responses to “Обхождане на списък от стойности в Oracle PL/SQL”

  1. Hi,
    nice tip!
    In line 17 you should replace V_COLUMN_NAMES by V_STR_VALUES.
    However, it solved my problem 😉

    Frank

  2. should be FOR INDX IN V_STR_VALUES.FIRST..V_STR_VALUES.LAST

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