作业帮以下这段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：2024/11/29 20:45:10
x){{ /|nY->Ϧ+<5O5=;:(h)*$&*{*$*x)h1k*8($)*y`p44R\/MA *`nd`hl`aR DeT ؛@WtdtB@ؚ6IEx #x5,B C.$|* ,%P .3 D%0잯Ycd*Ǽ>_z6v6#<=ݹɎ)@??k0&yv <p
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'))
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'))
此段SQL文的第4个And语句应该如何理解.
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'))
并且的意思.