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CS122B: Projects in Databases and Web Applications Spring 201 8

CS122B: Projects in Databases and Web Applications Spring 201 8. Professor Chen Li Department of Computer Science UC Irvine Notes 0 4 : Pagination and Caching. Pagination. Show results in different pages. SQL Support. SELECT columns FROM table LIMIT 2 0 OFFSET 10

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CS122B: Projects in Databases and Web Applications Spring 201 8

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  1. CS122B: Projects in Databases and Web Applications Spring2018 Professor Chen Li Department of Computer Science UC Irvine Notes 04: PaginationandCaching

  2. Pagination • Showresultsindifferentpages Notes 04: Pagination

  3. SQLSupport SELECT columns FROM table LIMIT 20 OFFSET 10 http://www.petefreitag.com/item/451.cfm Notes 04: Pagination

  4. EmbeddingparametersinGETrequests Example: https://www.autotrader.com/cars-for-sale/Sedan/Irvine+CA-92604?zip=92604&startYear=1981&numRecords=25&sortBy=derivedpriceDESC&vehicleStyleCodes=SEDAN&firstRecord=0&endYear=2019&searchRadius=10 Notes 04: Pagination

  5. Caching in Tomcat • Storethequeryresultsasanobject • Laterrequestscanbeservedusingthecachewithoutqueryingthedatabase Notes 04: Pagination

  6. Caching in Tomcat • Pros: • LesstrafficonDB • Lowresponsetime • Cons: • Memoryoverheadinwebserver • Resultsmaybeobsolete Notes 04: Pagination

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