partitionbylist(job) ( partition p_job1values('PRESIDENT','MANAGER','ANALYST'), partition p_job2values('CLERK'), partition p_job3values(default) ); insert into emp_list select * from emp; select * from emp_list partition(p_job1); --查询分区数据 4.3、HASH分区(hash partition) HASH分区...
--找出整个数据库中统计信息过期的对象 setserveroutputonDECLAREObjList dbms_stats.ObjectTab;BEGINdbms_stats.gather_database_stats(objlist=>ObjList, options=>'LIST STALE');FORiinObjList.FIRST..ObjList.LAST LOOP dbms_output.put_line(ObjList(i).ownname||'.'||ObjList(i).ObjName||' '||ObjL...
2、 FREELIST(自由列表) Oracle通过维护FREELIST列表来记录或更新所有可用的数据块。当执行INSERT语句时,Oracle首先在FREELIST列表上搜索可用的空闲数据块,搜索成功之后将数据插入到那个空闲块。块在FREELIST列表中的可用性由PCTFREE参数值来决定。起初一个空块在FREELIST列表上列出,并且会一直保留,直到空闲空间达到PCTFR...
NameKeyRequiredTypeDescription Procedure name procedure True string Name of stored procedure Parameters list parameters True dynamic Input parameters to the stored procedure Returns The outputs of this operation are dynamic. Get rowOperation ID: GetItem This...
NameKeyRequiredTypeDescription Procedure name procedure True string Name of stored procedure Parameters list parameters True dynamic Input parameters to the stored procedure Returns The outputs of this operation are dynamic. Get rowOperation ID: GetItem This...
| LIST CHAINED ROWS [ into_clause ] | DELETE [ SYSTEM ] STATISTICS } ; (1)INDEX index:对索引进行分析,分析的结果会放在USER_INDEXES, ALL_INDEXES,或 DBA_INDEXES中 分析的内容: Depth of the index from its root block to its leaf blocks (BLEVEL) ...
for all hidden columns将只会对哪些虚拟列收集列统计信息.这意味着在对表收集统计时真实列是不会生成列统计信息的.这个值不能用于通常的统计信息收集.它只能用在当基表列的统计信息精确收集后在表中创建新的虚拟列.然后对新的虚拟列收集列统计信息时才使用它. ...
The OracleLISTAGG()function is anaggregation functionthat transforms data from multiple rows into a single list of values separated by a specified delimiter. The OracleLISTAGG()function is typically used to denormalize values from multiple rows into a single value which can be a list of comma-sep...
- Popup Color Picker — 位于 Popup List of Values 下 - Date Picker(使用格式掩码) 日历增强功能 创建日历页面或区域时,您将自动获取每月、每周和每天的日历。用户可以使用按钮在他们所需的模式之间切换。 支持对象增强功能 Application Express 2.2 中引入的支持对象特性进行了增强,允许定义升级脚本。因此,您可...
Monitoring Microsoft Internet Explorer Settings To hide the address bar: Do one of the following: â In Microsoft Internet Explorer, go to Tools > Internet Options > Security > Trusted sites > Sites, and add the site host name of the Oracle BAM Web applications host to the list. ...