Database Administrator

In Oracle databases, tables, indexes, stored procedures, and functions are all objects.The schema name is the same as the user name, but not the same as the user. If the user does not have any objects, the schema does not exist.I. TableORACLE tables

I haven't logged on to a database for a long time. When I log on, I will prompt that the password will expire and update it. C: \ Users \ Administrator> sqlplus/nolog SQL * Plus: Release 10.2.0.1.0-Production on Sunday July 17 14:23:25

Problem: A Streams exception is found in the source database, for example: Check: select * from dba_capture. An error is returned. ORA-26744: STREAMS capture process "CAPTURE_STREAM" does not support "BHOMSWAS". "DBMS_TABCOMP_TEMP_UNCMP" because of

1. Set the archiving path for databases in archive Mode1.1 query archiving statusSQL> select log_mode from v $ database;LOG_MODE------------NOARCHIVELOGSQL> archive log list;Database Log mode non-archive ModeDisable automatic archivingArchiving end

Data Pump is a new function launched by Oracle 10g. The difference between expdp/impdp AND exp/imp is that exp/imp is a client tool and can be used either on the client or on the server. Expdp/impdp is a server tool and can only be used on the

Guidance: Part 1: The following steps fully demonstrate the job creation process: Part 2: job-related knowledge: Part 3: Practical Application We found that the job owner must be used to delete jobs, and sys cannot delete other jobs! (First

Error during listener startup [Oracle @ localhost ~] : Lsnctl start TNSLSNR for Linux: Version 10.2.0.4.0-ProductionSystem parameter file is/u01/app/oracle/network/admin/listener. oraLog messages written to/u01/app/oracle/network/log/listener.

From Oracle 9i, there are two methods to manage a Segment Space: manual Segment Space Management and automatic Segment Space Management (ASSM ); ASSM uses bitmap to track or manage each block allocated to an object. The remaining space of each block

We often hope to unify data stored in different regions for application. Now we can use the replication technology to solve this problem. However, Database Replication also requires some conditions. First, the database must have the Advanced

With the continuous development of the information age, information systems and data are becoming more and more important to enterprises, companies, and units, and their dependence on information systems and core data is also growing, how to ensure

Next, we will explain the Sqlalchemy framework. Here is another example. Related reading: database framework of Python 3.x Sqlalchemy for SQlite operations As follows: This example is based on others' Code. _ Author _ ='Minggxu9' ImportSqlalchemy

Hibernate is a persistence layer framework that does not rely on any container and supports ing objects to database tables, ORM. Supports addition, deletion, modification, and query operations during development and encapsulates basic JDBC

The following is an article written in connection with asm management data. If there is anything wrong or missing, please point it out. I am very grateful.AsmCreate 1) DeleteAsm: 1, Stop all services 2,Localconfig ldel (DeleteCssService) 3,Run

1. commands for starting Mysql in Linux:/Etc/init. d/mysql start2. Close the Mysql command:/Etc/init. d/mysql shutdown3. Restart the Mysql command:/Etc/init. d/mysql restart4. Create a user:Grant permissions (all indicates all permissions) on

A script is used to manually create a database for expansion. when running the stored procedure provided by R & D, the following error is thrown:ORA-29538: Java not installed The entire process is recorded below:SQL> select * from v $

This period of time is responsible for the database management of a project development. The development database in this project is separated from the test database. Some system table data and basic data often need to be synchronized, to facilitate

I. Oracle database data migration:A. Data Migration Method1、import and export exp.exe/imp.exe;Advantage: strong compatibility. You can export custom objects;2、data pump Import and Export (oracle10g.pdf to upload expdp.exe/impdp.exe;Advantage: Faster

Oracle 10g ORA-600 [19004] problem is there on 11Gr2? The application reports a 600 error.A 600 error was found during log query.Alert log file:Mon Dec 05 19:08:08 2011Errors in file d: \ app \ ibsadmin \ diag \ rdbms \ orcl \ trace \ orcl_ora_00004.

Looking at the fat Oracle client on my computer, I almost never used anything like the Enterprise Manage Console. Its existence is a waste of my computer space. So I checked on the Internet to see if I could unmount the ORACLE client and use PL/SQL

Comparison between truncate and delete operations Operation Rollback High waterline Space Efficiency Truncate No Decrease Reclaim Fast Delete Yes Unchanged Do not recycle Slow