问题描述 JAVA连位数字判断如,1234 ,7890,8901,9012求解决 如题,求高手解答在线等,我现在只实现了,1234这种的不能实现8901这种的,public static boolean isDescNumeric(String numOrStr) { boolean flag = true; for (int i = 0; i < numOrStr.length(); i++) { if (i > 0) { int num = Integer.parseInt(numOrSt
问题描述 一个关于子查询的问题求解决! SELECT CASE ????????? WHEN T1.A = T2.A THEN ?????????? (SELECT T3.A FROM (SELECT 1 AS A FROM DUAL) T3 WHERE T2.A = T3.A) ????????? ELSE ?????????? 0 ??????? END AS TEST ?? FROM (SELECT 1 AS A FROM DUAL) T1, (SELECT 1 AS A FROM DUA