| 标题 | Oracle中获取会话信息的两个函数分享 |
| 范文 | 1、 USERENV(OPTION) 返回当前的会话信息. OPTION='ISDBA'若当前是DBA角色,则为TRUE,否则FALSE. OPTION='LANGUAGE'返回数据库的字符集. OPTION='SESSIONID'为当前会话标识符. OPTION='ENTRYID'返回可审计的会话标识符. OPTION='LANG'返回会话语言名称的ISO简记. OPTION='INSTANCE'返回当前的实例. OPTION='terminal'返回当前计算机名 SELECT USERENV('LANGUAGE') FROM DUAL; 2、sys_context 代码如下: select SYS_CONTEXT('USERENV','TERMINAL') terminal, SYS_CONTEXT('USERENV','LANGUAGE') language, SYS_CONTEXT('USERENV','SESSIONID') sessionid, SYS_CONTEXT('USERENV','INSTANCE') instance, SYS_CONTEXT('USERENV','ENTRYID') entryid, SYS_CONTEXT('USERENV','ISDBA') isdba, SYS_CONTEXT('USERENV','NLS_TERRITORY') nls_territory, SYS_CONTEXT('USERENV','NLS_CURRENCY') nls_currency, SYS_CONTEXT('USERENV','NLS_CALENDAR') nls_calendar, SYS_CONTEXT('USERENV','NLS_DATE_FORMAT') nls_date_format, SYS_CONTEXT('USERENV','NLS_DATE_LANGUAGE') nls_date_language, SYS_CONTEXT('USERENV','NLS_SORT') nls_sort, SYS_CONTEXT('USERENV','CURRENT_USER') current_user, SYS_CONTEXT('USERENV','CURRENT_USERID') current_userid, SYS_CONTEXT('USERENV','SESSION_USER') session_user, SYS_CONTEXT('USERENV','SESSION_USERID') session_userid, SYS_CONTEXT('USERENV','PROXY_USER') proxy_user, SYS_CONTEXT('USERENV','PROXY_USERID') proxy_userid, SYS_CONTEXT('USERENV','DB_DOMAIN') db_domain, SYS_CONTEXT('USERENV','DB_NAME') db_name, SYS_CONTEXT('USERENV','HOST') host, SYS_CONTEXT('USERENV','OS_USER') os_user, SYS_CONTEXT('USERENV','EXTERNAL_NAME') external_name, SYS_CONTEXT('USERENV','IP_ADDRESS') ip_address, SYS_CONTEXT('USERENV','NETWORK_PROTOCOL') network_protocol, SYS_CONTEXT('USERENV','BG_JOB_ID') bg_job_id, SYS_CONTEXT('USERENV','FG_JOB_ID') fg_job_id, SYS_CONTEXT('USERENV','AUTHENTICATION_TYPE') authentication_type, SYS_CONTEXT('USERENV','AUTHENTICATION_DATA') authentication_data from dual 3.与系统视图v$session组合使用可以获得更多信息(客户端所使用的应用程序等) 代码如下: select * from v$session se, (select SYS_CONTEXT('USERENV', 'TERMINAL') terminal, SYS_CONTEXT('USERENV', 'LANGUAGE') language, SYS_CONTEXT('USERENV', 'SESSIONID') sessionid, SYS_CONTEXT('USERENV', 'INSTANCE') instance, SYS_CONTEXT('USERENV', 'ENTRYID') entryid, SYS_CONTEXT('USERENV', 'ISDBA') isdba, SYS_CONTEXT('USERENV', 'NLS_TERRITORY') nls_territory, SYS_CONTEXT('USERENV', 'NLS_CURRENCY') nls_currency, SYS_CONTEXT('USERENV', 'NLS_CALENDAR') nls_calendar, SYS_CONTEXT('USERENV', 'NLS_DATE_FORMAT') nls_date_format, SYS_CONTEXT('USERENV', 'NLS_DATE_LANGUAGE') nls_date_language, SYS_CONTEXT('USERENV', 'NLS_SORT') nls_sort, SYS_CONTEXT('USERENV', 'CURRENT_USER') current_user, SYS_CONTEXT('USERENV', 'CURRENT_USERID') current_userid, SYS_CONTEXT('USERENV', 'SESSION_USER') session_user, SYS_CONTEXT('USERENV', 'SESSION_USERID') session_userid, SYS_CONTEXT('USERENV', 'PROXY_USER') proxy_user, SYS_CONTEXT('USERENV', 'PROXY_USERID') proxy_userid, SYS_CONTEXT('USERENV', 'DB_DOMAIN') db_domain, SYS_CONTEXT('USERENV', 'DB_NAME') db_name, SYS_CONTEXT('USERENV', 'HOST') host, SYS_CONTEXT('USERENV', 'OS_USER') os_user, SYS_CONTEXT('USERENV', 'EXTERNAL_NAME') external_name, SYS_CONTEXT('USERENV', 'IP_ADDRESS') ip_address, SYS_CONTEXT('USERENV', 'NETWORK_PROTOCOL') network_protocol, SYS_CONTEXT('USERENV', 'BG_JOB_ID') bg_job_id, SYS_CONTEXT('USERENV', 'FG_JOB_ID') fg_job_id, SYS_CONTEXT('USERENV', 'AUTHENTICATION_TYPE') authentication_type, SYS_CONTEXT('USERENV', 'AUTHENTICATION_DATA') authentication_data from dual) base where se.AUDSID = base.sessionid; |
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