一.备份Oracle数据库 1.使用数据库管理员账户登录 sqlplus system/system@orcl as sysdba; 2.创建备份目录,并指定备份目录(bak_dir)的物理路径 create or replace directory bak_dir as '/Oracle/OraBackupFile/Data'; 3.将“bak_dir”的读.写和执行权限赋给数据库用户(lpattendance) grant all on directory bak_dir to lpatte
1.非对称密钥来保护新的对称密钥 /*--测试环境 Microsoft SQL Server 2012 (SP1) - 11.0.3000.0 (X64) Oct 19 2012 13:38:57 Copyright (c) Microsoft Corporation Developer Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1) */ --新建测试登陆账号User1 USE [master] GO