8.How to fetch the date in “YYYY-MM-DD” format with its timestamp. Answer: SELECT TO_CHAR (SYSDATE, ‘YYYY-MM-DD HH24:MI:SS’) “Current_Date” FROM DUAL; 9.What is tablespace in Oracle? Answer: The oracle dat
Have access to Oracle Database 12c with a sample ORCL database, the SYS user with SYSDBA privilege and OS authentication (so that you can execute the sqlplus / as sysdba command.) This example uses the USERS tablespace, included in Oracle Database 12c. The Sample Schemas installation guide ...
What is a tuple in the database? A tuple is simply a row contained in a table in the tablespace. A table usually contains columns and rows in which rows stand for records while columns stand for attributes. A single row of a table that has a single record for such a relation is know...
Changing platform: Data migration is indicated when changing the server operating system; for example, when moving from Solaris to Linux. And the move to a different architecture, such as Oracle Real Application Cluster (RAC), cloud or virtualized environments, requires that IT provide a copy of...
PSAPUNDO: Oracle standard and it is simply the information stored by Oracle to rollback or undo changes to the databaseinformation. Every database must have an undo tablespace. If this table is full then your jobs will fail. If you want to avoid theh issues you have to extedn the table...
Re: what are oracle indexs? Data dictionary consists of tables and views which are stored in the system tablespace and has all the information regarding the database like the storage,structure,schema objects,users,etc. You can get all information of the Oracle data dictionary using the static ...
Chapter 19, "Performing Block Media Recovery"and theOracle Database Backup and Recovery ReferenceRECOVERcommand SET NEWNAMEOptions TheSET NEWNAMEcommand is more powerful and easier to use. You can use this command on a specific tablespace or on all data files and temp files. You can also chang...
Smallfiles are the default and are limited by block size. Since we build a DB with 8k block size, the maxfilesize is 32GB. Each tablespace is limited to 1023 datafiles (OS limitation). This puts a limit of 32 TB on each tablespace. ...
other than SYSTEM or UNDO until the affected tablespace is recovered. D. The loss affects only those users whose default tablespace contains the lost or damaged datafile. 给的答案是B,我个人认为A应该也是可以的。 也就是如果一个非系统表空间包含多个数据文件,如果其中一个数据文件丢失了,这个时候访问这...
Each LOB column can be stored in a separate tablespace, and even on different secondary storage devices. Oracle8i SQL data definition language (DDL) extensions let you create, modify, and delete tables and object types that contain large objects (LOBs). The Oracle8i SQL data manipulation ...