以下这段DB2的SQL文 应该如何理解SELECT * FROM aa WHERE a IN ('1','2','3','4') AND b = '000' AND c = '0B' AND d = '00' AND ((e = '0' AND f '6' AND (g > '20130816' OR (h = '20130816' AND i > '1044')) AND j '****') OR (k = '1' AND l = '1'))

来源：学生作业帮助网 编辑：作业帮 时间：2024/07/31 01:34:25
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