又是正则

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　　level: 0x04

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　　code: 

// (lrrq或rq或date)或(yqsl或sl)与(yqdm或ypmc)与 (ysgk或ysdm)与sum与group
        
String regex = "((?=.*(lrrq|rq|date))|(?=.*(yqsl|sl)))(?=.*(yqdm|ypmc))(?=.*(ysgk|ysdm))(?=.*sum)(?=.*group).*";
String str = "select sl , yqdm , ysgk  sum(ssd) table1 group by ddffd";

Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(str);

System.out.println(m.matches());

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　　?= 必须; ?! 排除; | 或者