Oracle Database Server

Oracle Database Server

The Oracle database is the first database that is designed for the enterprise grid computing. It is the most flexible and cost–effective way to manage information and application.

Oracle’s grid computing technology includes:

  • Automatic Storage Management (ASM)
  • Real Application Cluster (RAC)
  • Oracle streams
  • Enterprise Manager Grid Control

Oracle Database 11g:-  ‘g’ stands for grid.

  • Automatic Storage Management spreads database data across all disks, creates and maintains a storage grid and provides the highest I/O throughput in with minimal management cost. ASM redistributes the all data automatically. There is no need for a logical volume manager to manage the file system.
  • Oracle’s Real Application Cluster runs and scales all application workloads on a cluster of servers and offers the following features :
  • Oracle Streams provides a unified framework for information sharing, combining, message queuing, data replication, event notification, data warehouse loading and publishing into a single technology.
  • Enterprise Manage Grid Control manages grid wide operations that include managing the entire stack of software, provisioning users, cloning databases, and managing patches.

USER PROCESS: 

A database user who needs to request information from the database must first make connection with the Oracle Server.

SESSION:

A session represents the state of the current user login to the database instance.

INSTANCE:

An Oracle instance contains the set of Oracle Database background processes that operate on the stored data and the shared allocated memory that those processes use to do their work.

SERVER PROCESS:

Oracle Database creates server processes to handle the requests of user processes connected to an instance.

Server processes are two type 🡪

  • Dedicated Server Process, which can services only one user process.
  • Shared Server Process, which can services multiple user process.

CONNECTION AND SESSION LAYOUT

One Session for each Connection

One Connection for two Session

ORACLE SHARED SERVER:- The SHARED_SERVERS initialization parameter specifies the minimum number of shared servers that you want created when the instance is started.

DATABASE SHARED SERVER PROCESS

ORACLE DEDICATED SERVER:- A dedicated server process, which services only one user process.

DATABASE SEDICATED SERVER PROCESS

The following example connects SQL*Plus to the database as user SYSTEM and enables tracing, thus creating a new session.

  • DATABASE SERVER ARCHITECTURE OVERVIEW

An Oracle Database consists of a database and at least one instance.

An instance, or database instance, is the combination of memory and processes that are a part of a running installation and a database is a set of files that store data.

DATABASE SERVER ARCHITECTURE

IDENTIFY THE CORRECT SESSSION AND TERMINATE THE SESSION BY PERFORMING THE STEPS BELOW:-

  1. Invoke sql*plus.
  1. HOW TO CHECK THE SESSION

SELECT SID, SERIAL#, STATUS, SERVER
FROM V$SESSION
WHERE USERNAME = ‘<username>’

  1. HOW TO KILL THE SESSION

ALTER SYSTEM KILL SESSION ‘<SID, SERIAL#>’

IDENTIFY THE CORRECT SESSSION AND TERMINATE THE SESSION BY PERFORMING THE STEPS BELOW:-

NOTES:-  Oracle Enterprise Manager 9.2 was used in the examples.

  1. Select START > Programs > Oracle > OraHome92 > Enterprise Manager Console. Select Launch Standalone and click OK.
  1. Expand Databases. Expand your database. Expand Instance and select Sessions. Identify the session you want to terminate.
  2. Expand Sessions. Select the session you want to terminate and click Kill Session.

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Dear Default Value,
 

Welcome to SOAIS Newsletter of September 2021!

Continuous Testing with Remote Execution
 
The speed of innovation continues to increase, driving rapid and relentless change for today’s ever-evolving IT landscapes, creating greater risk as IT and business teams scramble to ensure timely delivery. How can your organization keep pace? Test more, worry less. With Worksoft’s Connective Automation Platform, you can easily build and maintain automated tests, accelerating testing time without losing scope or volume. You can schedule and execute remote, continuous tests to intercept defects sooner and prioritize remediation - without sacrificing your nights and weekends. Explore how continuous test automation and remote execution can empower your organization.

Click here to connect with us to get more information on our services.
 

Skip Costly Rework with Dynamic Change Resiliency​

Change resiliency is imperative in ever-evolving IT environments. Our patented object action framework streamlines change management by assigning object definitions to your shared assets. The same object may be used in a thousand automation steps, but it can be easily updated by making one simple change to the model definition. The change automatically propagates to every single instance where that object may have been used without a single line of code or manual human involvement. For more change readiness you can also engage our Impact Analysis for SAP to predict how changes in SAP transports will affect your business processes. 

Please click here to watch the video to get a gist.
 

SOAIS Blog – Nuts and bolts of Certify Database Maintenance​

One of the key thing, which is often missed by the organizations, who have invested in using Worksoft Certify for automating their Business Process Validation initiatives, is implementing a Database Maintenance Plan. While the business and the test automation consultants get excited about the shiny new thing that they have got and start building the regression suite; planning and executing a database maintenance plan for most of the customers gets pushed down the priority list. However, since all the test assets in Certify are stored in a Database, a robust database maintenance plan is very important to maintain smooth operation of Certify with acceptable performance criteria. The customers usually start facing issues once they have built significant number of Certify processes which they have started executing on regular basis. Such executions add a lot of data to the tables storing results data and increase the overall size of the Certify database.

Please click here to read the complete blog.
 

Worksoft Blog – Process Intelligence: A Multi-Dimensional Approach

The ability to extract process knowledge has become easier through the years. Technology has evolved to the point where we can deploy capabilities that connect at multiple levels to extract different types of process insight. In the past, organizations were forced to spend enormous energy extracting data manually from different applications and databases. Then, they would have to use things like spreadsheets to transform the data and convert it into meaningful information. 

Please click here and read the complete blog.
 
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