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»¹ÊÇ´æ´¢¹ý³Ì°É ÓÃcase then case when SQL code: select ×Ö¶ÎÃû= case when ³É¼¨ > 60 then '¼°¸ñ' case when ³É¼¨ > 80 then 'ÓÅÐã' case when ³É¼¨ < 60 then '²»¼°¸ñ' end from ±íÃû ²»ÖªµÀ¶Ô²»¶Ô ÎÒÒ²²ËÄñÂÒÏëµÄÒýÓà case when ·Ç³£ÕýÈ· ´ó¼Ò¶¼ËµÍêÁË£¬Ã»Ê²Ã´ºÃ˵µÄÁË£¬Â·¹ý SQL code: --Äã˵µÄÊÇ3¸ö×Ö¶ÎÊÇÓïÎÄ£¬Êýѧ£¬Ó¢Óï --ÄDZí¾ÍÓ¦¸ÃÊÇ£º -- YuWen YinYu ShuXue -- 70 58 80 -- .. .. .. -- .. .. .. select case when YuWen <60 then '²»¼°¸ñ' when YuWen>=60 and YuWen<=70 then '¼°¸ñ' when YuWen>=80 then 'ÓÅÐã' end 'YuWen', case when YinYu <60 then '²»¼°¸ñ' when YinYu>=60 and YinYu<=70 then '¼°¸ñ' when YinYu>=80 then 'ÓÅÐã' end 'YinYu',case when ShuXue <60 then '²»¼°¸ñ' when ShuXue>=60 and ShuXue<=70 then '¼°¸ñ'
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