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ORACLE SELECT REGION_ID FROM SPC_REGION connect BY prior REGION_ID = SUPER_REGION_ID AND (CASE WHEN DELETE_STATE IS NOT NULL THEN DELETE_STATE ELSE '0' END) = '0' START WITH (REGION

对传统的操作数据库进行二次封装可以把结果集转化成List 　 package com.util; import java.io.FileInputStream;  import java.io.FileOutputStream; import java.io.IOException; import java.lang.reflect.Field; import java

1.下载 navicat8_mysql_cs.tar.gz 文件 　　2,下载后 解压tar文件                      a) 运行终端                      b)首先在终端要cd到你要解压的文件夹下 cd /home/admin/下载/                        c)然后 解压

with cte as ( select Id,Pid,DeptName,0 as lvl from Department where Id = 2 union all select d.Id,d.Pid,d.DeptName,lvl+1 from cte c inner join Department d on c.Id = d.Pid ) select ...