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November 11, 2019 14:03
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Каким будет результат?
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DECLARE | |
t_r1 VARCHAR(2);-- NULL; | |
t_r2 VARCHAR(2);-- NULL; | |
BEGIN | |
IF t_r1 != t_r2 THEN | |
dbms_output.put_line('Не равны'); | |
ELSIF t_r1 = t_r2 THEN | |
dbms_output.put_line('Равны'); | |
ELSE | |
dbms_output.put_line('НЕИЗВЕСТНО'); | |
END IF; | |
END; | |
------------------------ | |
ОТВЕТ: НЕИЗВЕСТНО |
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