Oracle issued the following error: ORA-01940: cannotdropauserthatiscurrently connectedCode language:SQL (Structured Query Language)(sql) Fifth, end the user bar’s session first using the exit command: And issue theDROP USERstatement again in the userotsession: ...
Name DROP USER Synopsis DROP USER username [CASCADE] The DBA’s favorite command, this statement removes a user (username) from the database. Keyword CASCADE Specifies that all objects in … - Selection from Oracle Database Administration: The Essential
Fortunately, SQL allows us to do it, as we can use the DROP TABLE command. The syntax for DROP TABLE is, DROP TABLE "table_name";If we wanted to drop the Customer table that we created in the CREATE TABLE section, we simply type,...
一、 背景 drop了sqlserver一个大表image类型的列,感觉作为一个ddl语句应该在drop之后会释放空间,但drop后查询表发现并没有缩小,也不像oracle删除表空间中的表后可以复用原空间,插入数据之后数据文件还在不断增大。 二、 如何让sqlserver drop列后释放空间 法一:重建聚集索引(推荐) 1)重建聚集索引 ALTER INDEX PK_...
$ mkstore -wrl $ORACLE_BASE/admin/$ORACLE_SID/wallet -create Enter password: Enter password again: However, the simplest way to create the wallet is to simply use the following command in SQL*Plus: SQL> alter system set encryption key identified by "password"; ...
sql-> drop table foo; Error handling command drop table foo: Error: User error in query: DROP TABLE failed for table foo: Table does not exist: foo IF EXISTSを指定し、表が存在する場合は、DROP文が正常に実行されます。 コピー sql-> create table foo (first string, second integer, primar...
测试Oracle 11gr2 RAC 非归档模式下,offline drop数据文件后的数据库的停止与启动测试全过程 最近系统出现问题,由于数据库产生的日志量太大无法开启归档模式,导致offline的数据文件无法online! 数据库在启动的时候不检查offline的数据文件! 下面进行测试 数据库版本 ...
Oracle 12.1.0.2 SE2 on Oracle Linux 6. Real simple. I was adding a new 'standard' user to all of my databases.
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Oracle 9i实现了基于回滚段的闪回查询(Flashback Query)技术,即从回滚段中读取一定时间内对表进行操作的数据,恢复错误的DML操作。 在Oracle 10g中,除提高了闪回查询功能,实现了闪回版本查询、闪回事务查询外,还实现了闪回表、闪回删除和闪回数据库的功能。