Database Optimization Saving Time and CPU Usage Essay

Database optimization is something, that while may go unnoticed, is very important a very important for saving time and CPU usage. In attempting queries on the math database downloaded form stackexchange. A query is an expression written in a programming language, in this case SQL, that is used for data look up in a database. Stackexchange is a large compressed file that contains a record of all the forums from the website stackoverflow.com. I specifically used the math files since they are one of the largest files in size and serve as a perfect example for why database optimization, and finding efficient SQL queries is important. I have noticed that complicated queries can be optimized to make for faster, more complete results. With the†¦show more content†¦( Query Optimization in Database Systems) To sum it up query optimization is important so that these costs can be reduced as much as possible even as the amount of data increases. Using the schema: users id integer, name text, rep, integer, about text) posts( id integer, title text, owner_id text, post_id, created text) com(comment_id integer, post_id integer, comment_text text, user_id integer), I ran a query â€Å"SELECT COUNT(post_id), created FROM posts GROUP BY created† to get a count of how many posts were made and on what days. This took anywhere from five to ten seconds to run which is a pretty good amount of time. The problem with the query is that it is too simple. Every time it is run it is searching the entire database and printing everything out. For one thing this is not ideal since it is not very readable and the information is not very specific. To make this query better I added on â€Å"WHERE† clauses to give it a specific target. If looking for a how many posts where created on 2010-03-27 14:53:20.727 then run query â€Å"SELECT count(post_id) FROM posts WHERE created = 2010-03-27 14:53:20.727. While that seems simplistic for the topic, it is worth noting since a bi g part of optimizing queries is knowing what you want and specificallyShow MoreRelatedThe Performance Of Database Management1189 Words   |  5 Pagesmetrics regarding the performance of database management components and the overall database management system. As a process, performance measurement is not just collecting data associated with a predefined performance goal or standard. Performance measurement is an overall management system involving prevention and detection aimed at achieving conformance of the database management process to an established target. Additionally, it is concerned with process optimization through increased efficiency andRead MoreWindows Sql Server Database Design Essay3374 Words   |  14 PagesTasman Interna tional Academies Diploma in Information Technology (Level 7) Assessment: Windows SQL Server Database Design and Optimization Subject Code: WD 602 Purpose: People credited with this unit standard are able to: Explain purpose designing hardware and software in database. Gain knowledge of server administration, designing physical storage, designing server-level security, data recovery solutions and object-level security. Aim: The assessmentRead MoreSap Han An Effortless Winner Over Oracle3506 Words   |  15 PagesCarolina at Charlotte Charlotte, NC asridha3@uncc.edu Abstract—SAP HANA (â€Å"High Performance Analytic Appliance†) is doubtlessly a hands’ down winner over Oracle. SAP created Hana for real-time analytics and applications. Oracle released Exadata Database Machine in 2010 to deliver the highest levels of database performance available. Though Oracle claimed that it wants to be the leading applications vendor in the world, it failed to openly accept SAP HANA as its competitor. While HANA is also an in-memoryRead MoreWindows Sql Server Database Design And Optimization Essay5564 Words   |  23 PagesInternational Academies NAME : K.Nagarjuna SUBJECT : Assessment: Windows SQL Server Database Design and Optimization ID NO : 14091138 SUBMITTED TO : Imran Sidqque SUBMITTED DATE: /july/2015 Diploma in Information Technology (Level 7) Assessment: Windows SQL Server Database Design and Optimization Subject Code: WD 602 Assessment: Task One Theoretical Questions Outcome 1 (1.1)Read MoreEssay NCE Informational System Proposal Summary2500 Words   |  10 Pagesthe solution being considered ?  Ã‚  Ã‚  Ã‚  Ã‚  NCE will save time in that we will not ?reinvent the wheel? ?  Ã‚  Ã‚  Ã‚  Ã‚  NCE provided solutions will be more standardized ?  Ã‚  Ã‚  Ã‚  Ã‚  Using the same solution repeatedly simplifies supporting our solutions ?  Ã‚  Ã‚  Ã‚  Ã‚  Allows our NCEs to be able to provide backup to one another ?  Ã‚  Ã‚  Ã‚  Ã‚  With standard solutions we increase the probability that we will continually improve the solution. User Requirements The IT team spent time interviewing and observing the NCE team using the currentRead MoreDigging Information From A Database2549 Words   |  11 PagesDigging information from a database sometimes requires creating complicated queries. Often a simple select * from . . . is nested into another one and both into another one and so forth until the result becomes a very complicated query containing scalar queries (subqueries in the select clause) and in-line views (subqueries in the from clause). Such queries are difficult to read, hard to maintain, and a nightmare to optimize. Fortunately there is a WITH clause defined in SQL-99 and implemented inRead MoreWindows Sql Server Database Design And Optimization Essay4185 Words   |  17 PagesName :-------- Sukhdeep Singh Mann ID NO. :--------- 14110738 SUB DATE:------- 21-07-2015 Assessment----windows SQL server database design and optimization.. Subject code---WD 602 Outcome 1 (1.1) Q.1 Briefly explain following designing requirements that are required when designing the hardware and software infrastructure: a) Storage requirements Plan your data storage configuration carefully. There are significant cost and performance tradeoffs to consider when planning for data storageRead MoreWindows Sql Server Database Design Essay8605 Words   |  35 PagesTasman International Academies Diploma in Information Technology (Level 7) ASSESSMENT: Windows SQL Server Database Design and Optimization STUDENT NAME:: RANJIT SINGH STUDENT ID :: 14112532 ASSESSOR NAME:: IMRAN SIDDIQUE DATE SUBMITTED:: 20/07/2015 SUBJECT:: ASSESSMENT (THEORY) Assessment:Read MoreCloud Based Storage : A Model Of Data Storage6901 Words   |  28 Pagesidentify the applications and their dependencies on other components and services. For a Web-based application or Software as a Service (SaaS) application, the dependency tree will consist of logical components (features) of the website such as the database, search and indexer, login and authentication service, billing or payments, and so on. For backend processing pipeline, there will be different interconnected processes like workflow systems, logging and reporting systems. The Cloud Front would supportRead MoreWhat s The Real Role Of Your Network?1967 Words   |  8 Pagesovercome issues found when monitoring With an organized, highly effective approach to application performance management, any organization can achieve the type of visibility that s needed to meet business goals and drive growth. IT can spend more time where it matters — on strategic decision-making and technology implementation — rather than firefighting application issues. With visibility comes the power to streamline IT operations. [p. 2: Applications and productivity] Driving the Business Few