Actually Oracle Database contain logical and physical strucutre to process the data.The Schema Also Logical Structure to process the data in Database(Memory Component). Its Created automatically by oracle when user created.It Contains All Objects created by the user associated to that schema.For Ex...
Oracle Database generates an internal SQL statement, which in turn generates a recursive call. In short, recursive calls are basically SQL performed on behalf of your SQL. So, if you had to parse the query, for example, you might have had to run some other queries to get ...
SYSDBA and SYSOPER are special system privileges that enable access to a database instance even when the database is not open. Control of these privileges is outside of the database itself.When you connect with the SYSDBA system privilege, you are in the schema owned by SYS. When you conne...
In Oracle Database 10gRelease 2 (10.2), a new privilege,CREATE EXTERNAL JOBhas been added which will now be required for database users to execute jobs that run on the operating system outside of the database. During upgrade from Oracle Database 10grelease 1 this privilege is granted to a...
2.5 Rebuild the database 3. How to rebuild object definitions that are stored in the data dictionary ? 4. How to unload data when the segment header block is corrupted ? 5. How to unload data when the file header block is corrupted ?
Oracle Schema Objects Table Storage Oracle数据库如何保存表数据? Oracle Database uses adata segmentin atablespaceto hold table data. Oracle数据库使用表空间中的数据段保存表数据。 As explained in"User Segments", asegmentcontainsextentsmade up ofdata blocks. ...
Using database id: 1384114315 Enter instance numbers. Enter 'ALL' for all instances in a RAC cluster or explicitly specify list of instances (e.g., 1,2,3). Defaults to current instance. Using instance number(s): 1 ASH Samples in this Workload Repository schema ...
First, you must create a comparison using theDBMS_COMPARISON.CREATE_COMPARISONprocedure. You will need to supply a unique name for the Comparison, the schema name, and, optionally, the object name in the current database you wish to compare. You must also supply the location of the other sc...
To find a summary, use the STATUS command at the prompt: Export> status Job: CASES_EXPORT Operation: EXPORT Mode: TABLE State: EXECUTING Degree: 1 Job Error Count: 0 Dump file: /u02/dpdata1/expCASES.dmp bytes written = 2048 Worker 1 Status: State: EXECUTING Object Schema: DWOWNER ...
DefaultstocurrentdatabaseUsingdatabase id:1506959389Enter instance numbers. Enter'ALL'forallinstancesina RAC clusterorexplicitly specify listofinstances (e.g.,1,2,3). Defaultstocurrentinstance.Usinginstance number(s):1ASH Samplesinthis Workload Repository schema~~~Oldest ASH sample available:19-Jun-...