Data/빅데이터3 [Big Data Application] HTTP HTTP and Sessions The HTTP protocol is connectionless - That is, once the server replies to a request, the server closes the connection with the client, and forgets all about the request - In contrast, Unix logins, and JDBC/ODBC connections stay connected until the client disconnects : retaining user authentication and other information - Motivation: reduces load on server : operating systems ha.. 2023. 9. 18. [Big Data Application] HTML and HTTP Uniform Resources Locators In the Web, functionality of pointers is provided by Uniform Resource Locators (URLs). URL example: http://www.myweb.com/dbstore/application/dbprogram The first part indicates how the document is to be accessed - “http” indicates that the document is to be accessed using the Hyper Text Transfer Protocol. - The second part gives the unique name of a machine on the Inter.. 2023. 9. 18. [Big Data Application] 빅데이터 응용 개요 What's a Database? top : user view middle : tech features Data, Easy understanding, Easy usage : focus on db class Fast performance, Multiple users, Reliable usage : focus on technology What kinds of Database Applications are there? using inside of database : internally, good performance, bad portability (DDPL: not standarlize) outside of database : bad-communication cost, better portability (St.. 2023. 9. 6. 이전 1 다음
