If this software or related documentation is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicableStephens, Susie MChen, Jake YDavidson, Marcel GThomas, ShibyTrute, Barry M...
Reference partitioning is a new partitioning scheme in Oracle Database 11g that lets you partition a table on the basis of the partitioning scheme of the table that its reference constraint refers to. Reference partitioning is probably the hardest new partitioning scheme to grasp. The partitioning k...
SQL> exec dbms_stats.gather_table_stats(user,'T_DETAIL',cascade => true); PL/SQL procedure successfully completed 按照当前的数据关系,应该是一条主表记录,对应一条子表记录的关系。我们检查数据字典情况。 SQL> select table_name, partition_name, high_value,num_rows from dba_tab_partitions where t...
Oracle11g中,真实应用测试选项(the Real Application Testing Option)提供了一个有用的特点,叫SQL性能分析器(SQL Performance Analyzer,SQLPA,SPA)。系统包DBMS_SQLPA让你可以注册和比较SQL调优集(STS)中的SQL语句执行的统计信息。通过SQL性能分析器,可比较数据库变化前后SQL语句的执行情况。下面将通过简单例子说明该Or...
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0 Production TNS for Linux: Version 11.2.0.2.0 - Production NLSRTL Version 11.2.0.2.0 - Production /* 11g中引入了大量新的enqueue类型,在这里列出 */ ...
一沙弥的世界 三思笔记_Oracle学习轨迹 SQL*Plus® User's Guide and Reference 阅读排行榜 1. sqlplus连接远程数据库(48144) 2. Oracle数据库11g各版本介绍及功能比较(17309) 3. Oracle数据导入导出(imp/exp)(17028) 4. 在suse linux enterprise 10 中安装 oracle 10g (带图说明)(11767) 5. ...
SeeAlso:OracleDatabasePL/SQLPackagesandTypesReferencefor moreinformationaboutthispackage 3.3.2ConsideringtheImplicationsofUsingPassthroughSQL WhenyouexecuteapassthroughSQLstatementthatimplicitlycommitsorrollsbacka transactioninanon-Oraclesystem,thetransactionisaffected.Forexample,some systemsimplicitlycommitthetransactioncon...
oracle 11g PL/SQL Programming学习六 第8章 大对象(Large Objects) 大对象数据类型是很有用的数据结构,它可以用来存储文本、图片、音乐、视频. 11g对LOB类型进行了改造,使它变更快、更安全了. 通过DBMS_LOB.GET_STORAGE_LIMIT可以得到当前数据库允许的LOB类型的最大长度....
The Oracle Big Data SQL configuration must identify the default Hive database for the current user. The current user must also haveREADprivileges on theORA_BIGSQL_CONFIGdatabase directory. See"About the Common Directory". Related Views DBA_HIVE_COLUMNSdescribes the columns of all tables in the H...
Oracle Webcenter Content 11g安全性简介 Oracle WEBCENTER CONTENT是部署在Weblogic域中的一个组件,它的安全性支持包括Content Server instance ,weblogic域以及Oracle Platform Security Services(OPSS)等多级别。 WEBCENTER CONTENT安全性支持的几个级别: 1. Content Server Instance:WEBCENTER CONTENT自带的安全性,即为...