摘要:
Shell脚本编程30分钟入门 ==================== 什么是Shell脚本 示例 看个例子吧: !/bin/sh cd ~ mkdir shell_tut cd shell_tut for ((i=0; i bash 但在Mac OS上不是,/bin/sh和/bin/bash是两 阅读全文
摘要:
问题描述 解决方案 sql select b.name Department,a.name Employee,a.salary Salary from Employee a,Department b where a.departmentid=b.id and (select count(distin 阅读全文