ɽ»̳ Ƽ NoSQLӦ ΪʲôҪʹNoSQL
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[ת] ΪʲôҪʹNoSQL

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΢ѫ  ʵ֤
̳:
9
Hadoopϰ߳
:2017-12-28 17:09:25Java
:2018-01-04 17:15:14
:2018-03-01 16:41:57
:2018-03-19 15:04:30Kafka
:2018-03-23 10:45:46ͷֲʽ
:2018-03-29 16:06:23spark
:2018-04-20 15:29:14spark
:2018-04-26 15:29:14spark
:2018-05-03 15:46:21
2018-3-4 22:06 | ʾȫ¥ |Ķģʽ

ݿ SQL MySQL NoSQL ֿ

NoSQLweb2.0Ŀٷչǹϵֲ͡ʽݴ洢õ˿ٵķչDz֤ϵݵACIDԡNoSQL2009걻˳NoSQLĽǡnon-relationalNot Only SQLҲܶ˽ܡNoSQLһ1998걻һĹϵݿ֡
NoSQLõĵkey-value洢Ȼĵ͵ġд洢ͼݿ⡢xmlݿȡNoSQL֮ǰЩݿͱڸϵͳУȴwebӦácdbqdbmbdbݿ⡣
ͳϵݿƿͳĹϵݿвܣȶͣþʷ飬ʹü򵥣ǿͬʱҲ˴ijɹڻMySQLΪ˿ǰߣŵ˵MySQLΪķչ׿ԽĹס
90һվķһ㶼õݿȫӦǸʱ򣬸ĶǾ̬ҳ̬͵վࡣ
10꣬վʼٷչ𱬵̳͡sns΢webijڳڣ̳ʵҲӴȽ磬ܻǵǸʱıʹ洢̳򣬿һ̳ж
Memcached+MySQLŷ󲿷ʹMySQLܹվݿ϶ʼ⣬webٽרעڹϣͬʱҲ׷ܡԱǿʼʹû漼ݿѹŻݿĽṹʼȽеͨļݿѹǵʱ򣬶̨webͨļ治ܹСļҲ˱ȽϸߵIOѹʱMemcachedȻijΪһdzʱеļƷ
MemcachedΪһķֲʽĻΪwebṩһĸܻMemcachedϣַչ˸hashж̨MemcachedչȻֳһhashӻٻhashĴʧЧı׶ˡʱȥԣ˵Memcached飬϶ӷֵġ
MysqlӶдݿдѹӣMemcachedֻܻݿĶȡѹдһݿݿⲻظ󲿷վʼʹӸƼﵽд룬߶дܺͶĿչԡMysqlmaster-slaveģʽΪʱվˡ
ֱֿweb2.0ļٷչMemcachedĸٻ棬MySQLӸƣдĻ֮ϣʱMySQLдѹʼƿijMyISAMʹñڸ߲»ص⣬ĸ߲MySQLӦÿʼʹInnoDBMyISAMͬʱʼʹ÷ֱֿдѹչ⡣ʱ򣬷ֱֿһżԵҲҵ۵ż⡣ҲʱMySQLƳ˻̫ȶıҲʵһĹ˾ϣȻMySQLƳMySQL ClusterȺڻûгɹҲ㻥Ҫֻڸ߿ɿṩ˷dzı֤
MySQLչƿڻ󲿷ֵMySQLӦIOܼ͵ģʵϣMySQLǸCPUܼ͵ĻôܿMySQLƵ⣬ҪŻˡ߲µMySQLӦÿԽԽӣҲԽԽмսԡֱֿĹնҪġȻԱʵǿĹ˾͸мοߵĸԣDZⲻܹĸԡֱֿӿ⵽һ׶չ⡣оıҪһµķֿⷽʽ
MySQLݿҲ洢һЩıֶΣݿdzĴݿָʱ͵·dz׿ٻָݿ⡣10004KBСıͽӽ40GBĴСܰЩݴMySQLʡȥMySQL÷dzС
ϵݿǿ󣬵ܺܺõӦеӦóMySQLչԲҪӵļʵ֣IOѹ󣬱ṹѣǵǰʹMySQLĿԱٵ⡣
NOSQLչ
NoSQLݿ෱࣬һͬص㶼ȥϵݿĹϵԡ֮޹ϵͷdzչҲ֮䣬ڼܹIJϴ˿չ

NoSQLݿⶼзdzߵĶдܣڴ£ͬ㡣޹ϵԣݿĽṹ򵥡һMySQLʹQuery CacheÿαĸCacheʧЧһִȵCacheweb2.0ĽƵӦãCacheܲߡNoSQLCacheǼ¼ģһϸȵCacheNoSQL˵Ҫܸߺܶˡ
ģ
NoSQLΪҪ洢ݽֶΣʱԴ洢Զݸʽڹϵݿɾֶһdz鷳顣ǷdzıֶμֱһجΡڴweb2.0ʱԡ
߿
NoSQLڲ̫ӰܵͿԷʵָ߿õļܹCassandraHBaseģͣͨģҲʵָ߿á
ܽNoSQLݿijֲ֣˹ϵݣMySQLijЩIJ㣬ijЩܼĽʡɱάɱ
MySQLNoSQLиԵصʹõӦóߵĽܽϽweb2.0ݿⷢչµ˼·ùϵݿעڹϵϣNoSQLעڴ洢ϡ

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΢ѫ chenyun  ʵ֤
̳:
28
SASϰ߳
:2012-08-20 22:27:43̷ֲʽϵͳ
:2015-04-15 15:28:25
:2015-06-09 14:18:25
:2015-10-14 11:39:54Rϰм
:2015-12-03 16:17:56Ͷƻ
:2015-12-24 15:51:21Hadoopϰ߳
:2016-02-01 16:30:19Hadoopϰм
:2017-11-09 17:09:09Java
:2018-02-08 16:11:57Rϰм
:2018-03-01 16:41:49
:2018-03-01 16:41:57Julia
:2018-03-08 10:53:12
2018-3-8 09:39 | ʾȫ¥
һͳIJƷûпܳ
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ʹõ ٱ

΢ѫ  ʵ֤
̳:
9
Hadoopϰ߳
:2017-12-28 17:09:25Java
:2018-01-04 17:15:14
:2018-03-01 16:41:57
:2018-03-19 15:04:30Kafka
:2018-03-23 10:45:46ͷֲʽ
:2018-03-29 16:06:23spark
:2018-04-20 15:29:14spark
:2018-04-26 15:29:14spark
:2018-05-03 15:46:21
 ¥| 2018-3-11 22:46 | ʾȫ¥
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΢ѫ dbcc  ʵ֤
̳:
27
Oracleϰ߳
:2014-12-24 15:22:14Oracleϰ߸߼
:2017-06-15 17:32:25nosql
:2017-06-15 17:32:54Oracleϰ߸߼
:2017-08-03 18:07:37python
:2017-08-17 17:09:36Hadoopϰ߳
:2017-09-04 17:12:36mysql
:2017-11-23 17:01:08Hadoopϰ߳
:2017-12-28 17:09:25Java
:2018-01-04 17:15:14Git
:2018-01-18 17:59:13mysql
:2018-01-18 18:01:34Hive
:2018-03-01 16:42:20
2018-6-27 14:22 | ʾȫ¥
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̳:
15
nosql
:2013-05-09 17:04:32Keras
:2018-04-26 15:29:45python
:2017-08-03 18:13:45python
:2016-09-22 11:35:12Hadoopϰ߳
:2016-09-22 11:23:54spss
:2016-03-24 13:55:07MongoDB
:2015-12-10 15:59:54mysql
:2014-12-30 17:47:11Java
:2014-11-06 14:53:00Rϰм
:2014-09-19 14:18:07Oracleϰ߳
:2014-09-19 14:07:02Oracleϰ߳
:2014-09-19 14:06:28
2018-7-5 10:07 | ʾȫ¥
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΢ѫ  δʵ֤
̳:
1
Oracleϰ߸߼
:2018-05-10 16:26:15
2018-7-14 17:01 | ʾȫ¥
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