kill session

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Ora-00031 error for Oracle

1, in the deletion of the user can not proceed smoothly, the ora-14452 error SQLgt; dropuserggtransfer2cascade; dropuserggtransfer2cascade * ER 1. the user cannot be successfully deleted, and the ora-14452 error SQLgt; drop user ggtransfer2 cascade;

How to disconnect a user from Oracle

During Oracle data restoration today, we found that the restored data is incorrect and there are repeated records. Query the relevant information and know that the user corresponding to the database should be deleted before restoration.

How to Implement server-level killoracle in winods and Linux

Kill Oracle processes with locks   There is often a problem: in Oracle, a process that has been set to "killed" locks system resources for a long time and does not release them. There is a better way than restarting the database, the process is

Required for programmers: Routine Oracle maintenance commands

The previous article talked about the daily maintenance commands of Linux and the daily maintenance commands of oracle. I believe that Oracle databases must be maintained more or less. Should I import and export Oracle databases? (Oh, you said you

Oracle DBA user management questions

Note: The answer is after the option Q. 1: The default tablespace clause in the create user command sets the location  1. Database Objects created by the user2. Temporary Objects Created By the User3. System Objects Created by the user4. None of

Ora-00031 error for Oracle

1. A ora-14452 error occurred while deleting the user. SQL> drop user ggtransfer2 cascade; Drop user ggtransfer2 cascade * ERROR at line 1: ORA-00604: error occurred at recursive SQL level 1 ORA-14452: attempt to create, alter or drop an index on

Query the locked table in Oracle and release the session

Query SQL: Select a. Owner,A. object_name,B. xidusn,B. xidslot,B. xidsqn,B. session_id,B. oracle_username,B. OS _user_name,B. process,B. locked_mode,C. machine,C. Status,C. server,C. Sid,C. Serial #,C. ProgramFrom all_objects,V $ locked_object

How to quickly kill database processes that occupy too many resources (CPU and memory)

In many cases, exceptions or program errors may cause individual processes to occupy a large amount of system resources. To end these processes, run the following command to Kill the process:Alter system kill session 'Sid, serial #'; However, this

Oracle Database Daily Maintenance statements

One Check Database Basics 1.1. Check the Orale database instance status: 1.1.1 Select v.instance_name,v.host_name,v.startup_time,v.status,v.database_status from V$instance v; --status represents the current instance state of Oracle (open

ORACLE12C Database Management Common statements

ORACLE12C database Management Common statements:Select name from V$database; #查看数据库名:Desc v$database;Select instance_name from V$instance; #数据库实例名The above three SQL statements can only be queried to the current connected instance and to the

Oracle Transactions and Locks (RPM)

If you use a SET TRANSACTION statement, then it must is the first statement in your transaction. However, a transaction need not has a SET TRANSACTION statement.Syntaxset_transaction::=http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_

13. Oracle Lock

13, management data concurrency--lock1. Lock mechanismAdvanced Data concurrency ProcessingUse row-level locking when inserting, updating, and deletingQuery does not require any locksAutomatic queue ManagementHold locks until transaction processing

How Oracle Stops a job

How Oracle Stops a job1 related tables, views2 Problem descriptionWork with coworkers to resolve a SQL insert operation that takes an extra long time because of poor network connectivity.Since the network is not working well, you have chosen to use

Query and delete of Oracle's next session

Query and delete of Oracle's next session1. Query the current sessionsql> Select username,sid,serial# from v$session where username are not null; USERNAME SID serial#------------------------------ ---------- ----------SYS 144 4HYL 146SCOTT 147HR 159-

Go Oracle DB Management data concurrency processing

? Describes locking mechanisms and how Oracle manages data concurrency processing? Using SQL to manage Data? identify and manage PL/SQL Objects? Describe triggers and trigger events? Monitoring and resolving locking conflicts Working with

Processing EXP Export hang problem A case library cache lock

Forum for help Last week, CD channel ZSL contact me, let me see him in the forum sent a help post "oracle11.2.1 entire library export can not use ", told me this is the actual work encountered problems, for this reason, the user's data has not been

Oracle database Daily Maintenance commands

first, start, close the database 1, start the various modes of the instance 1 start the instance, load and open the database This is the most common database operation, meaning that an instance has been started and the database has been loaded and

Oracle Ora-00054:resource busy and acquire with nowait specified resolution _oracle

Errors such as Ora-00054:resource busy and acquire with nowait specified often occur when a database user inserts, updates, deletes a table's data in a database, or adds a table's primary key or a table's index. The main reason is that a

Oracle System View SQL statement collation

--The vast majority of dba/all/user/v_$/gv_$/session/index begins with a view--dba_tables means all the relational tables that the DBA has or can access. --All_tables All relational tables that a user has or can access. -User_tables means all the

Mechanism of Oracle Lock

In the modern multi-user multitasking system, there will inevitably be multiple users accessing a shared object at the same time, this object may be a table, row, or memory structure, in order to solve the data security, integrity and consistency of

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