oracle not

The oracle| program understands the basic but essential processes involved in building a. NET application that uses an Oracle database The downloads covered in this article · Sample code · Oracle Data Provider for. NET (odp.net) With the growing

A Work as Root user 1. Configuring Kernel Parameters Log in with root user #sam access to System Administrator Manager In which select kernel configuration, enter later in the selection configurable parameters Modify the following parameters

oracle| Object | data | database | statistics Application of statistical analysis technology for database objects If Oracle uses cost analysis when executing SQL, all cost analysis sources rely on the system's statistical analysis table

oracle| Solve | The problem Solutions to some of the problems in Oracle In Oracle management and application, some problems inevitably arise. Typically, Oracle displays error labels and short descriptions, and we can handle the problem based on the

Solve ORA-01034 the wrong way out One of the common--oracle errors In advance, Oracle Master does not need to read this article. This is a more common error for an Oracle database server. Experienced users can solve this error almost immediately,

--Paging the first step to get the data physical address Select T.rowid RID, t.lastdate from t_test t order by t.lastdate DESC; --page Two gets the maximum number of pages Select RowNum RN, RID from (select T.rowid RID, t.lastdate

1, DROP, truncate, delete difference TRUNCATE table is functionally the same as a DELETE statement without a WHERE clause: Both delete all rows in the table. However, TRUNCATE TABLE is faster than DELETE and uses less system and transaction log

Not very familiar with Oracle, only simple startup, shutdown, Lsnrctl start and other commands, do not like Oracle, not goodPlease amend username, password, oracle_sid,/path/to/dir and so on according to the actual situation EXPDP fully

SQL inside the command to save the contents of the screen output:Spool/tmp/a.txtPerform any SQL operationsSpool offHo Cat/tmp/a.txtTo start the Sqlplus tool:Su-oracle$lsnrctl status/start/stop View listening status and start stop

First you need to create a table space, and then create a user name, the user name to give him a table space, and give the user permissions,DBA: Has full privileges, is the highest system privilege, and only the DBA can create the database structure.

Introduction to 1.Oracle databases What is the difference between a database system and a database management system?parsing: Database system = Database management system +oper+ operator + hardwareOracle Database management systemCore products of

the neglected Oracle User-owned groupChongqing days, Heat can't stand, still in the heat wave, a brother to call, tell a single instance database new Field operation, has been stuck there, do not go on. Because you are busy talking about things,

1 PrefaceThe database large concurrency operation takes into account the deadlock and lock performance issues. See online most vague (especially update lock), so here is a concise explanation, for the following description of the convenient, here

One, table space 1.1 create TABLE space--Problem: Create a tablespace named HP, specifying a data file of hp.dbf, and a size of 10m.' C:\app\hp\hp.dbf ' size 10Mautoextend on next 5mmaxsize unlimited;1.2 Deleting a table spaceDrop tablespace hp;1.3

Recently on-line search how to install 64-bit Oracle in the case of win764, and use Plsql Developer to manage Oracle. So began to download the database on the Oracle website, download is a very simple thing, the problem is in Baidu when all said

Reasons to write this blog:Often in some operations development technology Exchange Group to see some people ask some questions about Oracle (DBA Novice or the operation of the restoration), but few people answer such questions. Problem:1.1) + How

Considerations for migrating data from MySQL to Oracle1. Automatic growth of data type processingMySQL has an auto-growing data type that does not manipulate this field when inserting records and automatically obtains data values. Oracle does not

Modify Memory_targetLog in with an Oracle user,Sqlplus "/as sysdba"Sql> Show parameters target;Show Parameters SPFile;Alter system set MEMORY_MAX_TARGET=4G Scope=spfile;Alter system set MEMORY_MAX_TARGET=4G Scope=both;Tmpfs/dev/shm Tmpfs

About the startup of the database:Oracle's startup is divided into three steps, starting the instance, loading the database, and opening the database. (Users can open the database according to their actual needs)Syntax is startup1:nomount

First, the preparatory work 1, download the Oracle installation package: Linux.x64_11gR2_database_1of2.zip and Linux.x64_11gR2_database_2of2.zip, can be downloaded to local, The FTP service is uploaded to the Linux system (refer to the CentOS7 FTP