?? if...else.txt
字號(hào):
IF (SELECT ytd_sales FROM titles WHERE title_id = 'BU1111') > 5000
BEGIN
PRINT '這本書的銷量很好!'
SELECT title FROM titles WHERE title_id = 'MC2222'
END
ELSE IF (SELECT ytd_sales FROM titles WHERE title_id = 'MC2222')>3000
PRINT '這本書的銷量一般!'
ELSE
PRINT '這本書的銷量很差!'
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