查询DB version

oracle版本查询

$ sqlplus /nolog
SQL> connect /as sysdba;  //以超级用户权限链接数据库
Connected.

SQL> select * from v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0      Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production

sql server 版本查询

1）. select @@version
2）.帮助->关于