具体说明: schema 为数据库对象的集合,为了区分各个集合,我们须要给这个集合起个名字,这些名字就是我们在企业管理器的 schema 下看到的很多类似username的节点,这些类似username的节点事实上就是一个schema,schema 里面包括了各种对象如:tables,views,sequences,stored procedures,synonyms,indexes,clusters,and database li...
alter database datafile 'C:\app\Administrator\oradata\myoracle\test02.dbf' offline; 这里需要注意,必须是归档模式才可以offline,如果不是归档模式,需要执行以下命令(使用SQLplus,登录sys用户以sysdba权限执行以下命令): start database nomount; alter database mount; alter database archivelog; alter database o...
In Oracle Database 10g, Oracle introduced the new Transparent Data Encryption (TDE) feature, which let you easily encrypt a column’s data in a table. The encryption is called transparent because the Oracle database takes care of all the encryption and decryption details, with no need for you...
Oracle Database 11gより以前のリリースからアップグレードする場合は、CREATE TABLESPACE文を使用してSYSAUX表領域を作成する必要があります。この句を指定するには、SYSDBAシステム権限が必要となり、また、データベースをUPGRADEモードでオープンしておく必要があります。 SYSAUX表領域には、EXTENT ...
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> c. Create a directory object in the on-premises database to reference the operating system directory. ...
You can use alter tablespace command to extend tablespace in Oracle: SQL> alter tablespace RAIDDATA add datafile 'FILE_LOCATION' size 100m autoextend on maxsize 31G; Note: You can find file location from the 1st query as mentioned above. In case of ASM, use diskgroup name as a file loca...
When it comes to databases in general and oracle specifically, we hear the term " tablespace " when trying to create a database object. there is some question
在oracle中有时需要把表移动到其他表空间中,下面是移动的步骤。 首先,使用下面的命令移动: alter table table_name move tablespace tablespace_name; 然后,如果有索引的话必须重建索引: alter index index_name rebuild tablespace tablespace_name; 需要注意的地方是: ...
You cannot use this statement to convert a dictionary-managed tablespace to a locally managed tablespace. For that purpose, use theDBMS_SPACE_ADMINpackage, which is documented inOracle Database PL/SQL Packages and Types Reference. See Also: ...
You can use theTransportable Tablespaces feature to copy a set of tablespaces from one OracleDatabase to another. --可以使用TTS 特性将表空间从一个数据库copy 到另一个数据库。 Note: This method fortransporting tablespaces requires that you place the tablespaces to betransported in read-only mode ...