摘要：
题目：表内容：2005-05-09胜2005-05-09胜2005-05-09负2005-05-09负2005-05-10胜2005-05-10负2005-05-10负如果要生成下列结果, 该如何写sql语句?胜负2005-05-09222005-05-1012知识点：CASE value WHEN [compare-value] THEN result [WHEN [compare-value] THEN result ...] [ELSE result] ENDCASE WHEN [condition] THEN result [WHEN [condition] THEN result . 阅读全文