Block with label : Label « PL SQL « Oracle PL / SQL

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Oracle PL / SQL » PL SQL » Label 
Block with label
   

SQL> <<l_outer_block>>
  2  DECLARE
  3     visibleValue VARCHAR2(30);
  4     hiddenValue VARCHAR2(30);
  5  BEGIN
  6     visibleValue := 'visibleValue';
  7     hiddenValue := 'hiddenValue';
  8
  9     DBMS_OUTPUT.PUT_LINE('OUTER BLOCK');
 10     DBMS_OUTPUT.PUT_LINE(visibleValue);
 11     DBMS_OUTPUT.PUT_LINE(hiddenValue);
 12
 13     DECLARE
 14        hiddenValue NUMBER(10);
 15     BEGIN
 16        DBMS_OUTPUT.PUT_LINE('INNER BLOCK');
 17        l_outer_block.hiddenValue := 'inner hiddenValue';
 18        DBMS_OUTPUT.PUT_LINE(l_outer_block.hiddenValue);
 19     EXCEPTION
 20        WHEN OTHERS
 21        THEN
 22           DBMS_OUTPUT.PUT_LINE('hiddenValue of type VARCHAR2 was...hidden');
 23     END;
 24  END;
 25  /
OUTER BLOCK
visibleValue
hiddenValue
INNER BLOCK
inner hiddenValue

PL/SQL procedure successfully completed.

SQL>

   
    
    
  
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4. Use label to mark outer loop and inner loop
5. Loop with a Label
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