????????????????????????????????????????????????ONEDAYDATA????????????????????????????????????????????????????棬??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
//#JVM?????????????(stack segment??heap segment??code segment??data segment)
//????????????У???????????????????????????????? stack segment(?)???У?
//??new ?????????????????????heap segment(??)???У?
//??static?????????????????? ??????? data segment(??????)?У?
//??????з??????????????? code segment(??????)?????
mapper????????????????????????μ??????
SELECT
COUNT(1)
FROM
idc_work_order_main
WHERE
gmt_create < CONCAT('2016-08-03'??'23:59:59')
AND gmt_create > date_sub('2016-08-03 00:00:00'?? INTERVAL 3 MONTH)
??????д???????ArrayList??
????//ArrayList<String> list_01 = new ArrayList<String>(){{add("1");add("2");add("3");}};
????//ArrayList<String> list_02 = new ArrayList<String>(Arrays.asList("1"??"2"??"3"));
?????????Navicat?в????SQL??????????

????????????????????id???????????in????????????????????in???????????????????£?
????1??navicat????β???????SQL??????
????2????????????????????Ч????
???????