Oracle

Oracle log files are familiar to Oracle database users. The following describes how to query Oracle log files for your reference. 1. query the list of log files used:Select * from v $ log; 2. query the log files of the Group in use:Select * from v $

Oracle hierarchical query connect by) is used in structured query. The following describes the basic syntax of Oracle hierarchical query. We hope you can have a deeper understanding of Oracle hierarchical query. The select statement in oracle can

There are several ways to query Oracle. The following describes how to query the locked table in Oracle and how to query the connection process in Oracle. View the locked table Select p. spid,. serial #, c. object_name, B. session_id, B.

Oracle users are an important concept in Oracle databases. The following describes the differences between Oracle users and models, and hopes to help you learn about Oracle users. 1) What is Oracle user ):A user is a name defined in the database

I believe everyone has some knowledge about oracle log files. The following describes the types and archive log modes of oracle log files. If you are interested, take a look. Oralce two log file types: Online log filesThis is an Oracle operating

How can we implement Oracle Database restart? This is a problem that many people have mentioned. The following describes how to restart the Oracle database for your reference. 1. Stop various applications at the application layer. 2. Stop the

The methods for starting Oracle databases on different system platforms are also different. oracle databases are heavyweight, and their management is very complicated, the following describes how to start the Oracle database on the linux

How can we implement Oracle's method of getting a fixed number of records? This is a problem that many people have mentioned. The following describes the implementation steps for getting a fixed number of records in Oracle. I hope this will help you.

Oracle file system is a strange concept for many new users who are new to Oracle databases. The following describes in detail the Oracle file system mechanism, hoping to help you learn about Oracle. In Oracle, you can use four Oracle file system

The oracle deadlock problem has always plagued us. The following describes how to check the oracle deadlock. If you have encountered oracle deadlock problems before, take a look. I. Database deadlock When the program is executed, click OK or save.

Creating an instance in ORACLE is one of our most common operations. The following describes the entire process of creating an instance in ORACLE. We hope this will help you. I. ORACLE instance creation process:1. Install the ORACLE server.2. Create

When using Oracle, you will inevitably encounter the Oracle password loss problem. The following describes two solutions to Oracle password loss, hoping to help you. Solution 1: Sqlplus "/as sysdba"SQL> startupSQL> alter user system identified by

I believe you have some knowledge about how to uninstall oracle databases. The following describes how to delete services and other information after oracle is uninstalled. I hope this will help you learn how to uninstall oracle. Implementation

I have already introduced two points for you.Oracle Database segment ManagementTIPS: Oracle Database segment Management Tips 1). Next I will introduce more skills. Tip 3: reduce the use of temporary segments Temporary segments are mainly used to

Guidance:Many people know that,Oracle listenerThere is always a security risk. If no security measures are set, users who can access the listener can close the listener remotely. SpeakingOracle listenerYou have to talk about it.Oracle listening

Implementation of auto-increment columns in Oracle databases: 1. Create a sequence -- Create sequenceCreate sequence INNERIDMinvalue 1Max value 99999999999999Start with 1Increment by 1Cache 20Order; 2. -- INNERID. currval indicates the current

Guidance:Sometimes we may not know the password of a user, but we need to perform some operations as this user, and we cannot modify the password of this user. At this time, you can use some tips to complete the operation. The procedure is as

Oracle Database Character SetIt is the most basic unit in the Oracle database. Although the character set is small, it plays an important role in the Oracle database. Next we will introduce the knowledge of the character set in the Oracle database

Guidance:Security issues threaten all major database systems. People have been fighting against security issues and there is no effective way to ensure database security. As database technology becomes more and more widely used, the increasing

Restrictions in Oracle: 1. the maximum number of lists IN the IN clause is 1000. If the number is exceeded, an error is returned. You can use a temporary table to solve this problem; 2. The character length of the create trigger statement text