锘??xml version="1.0" encoding="utf-8" standalone="yes"?>
涓銆佽繛鎺YSQL銆?/strong>
鏍煎紡錛?mysql -h涓繪満鍦板潃 -u鐢ㄦ埛鍚?錛峱鐢ㄦ埛瀵嗙爜
1銆佷緥1錛氳繛鎺ュ埌鏈満涓婄殑MYSQL銆?
棣栧厛鍦ㄦ墦寮DOS紿楀彛錛岀劧鍚庤繘鍏ョ洰褰?mysqlbin錛屽啀閿叆鍛戒護mysql -uroot -p錛屽洖杞﹀悗鎻愮ず浣犺緭瀵嗙爜錛屽鏋滃垰瀹夎濂組YSQL錛岃秴綰х敤鎴穜oot鏄病鏈夊瘑鐮佺殑錛屾晠鐩存帴鍥炶濺鍗沖彲榪涘叆鍒癕YSQL涓簡錛孧YSQL鐨勬彁紺虹鏄細mysql>
2銆佷緥2錛氳繛鎺ュ埌榪滅▼涓繪満涓婄殑MYSQL銆傚亣璁捐繙紼嬩富鏈虹殑IP涓猴細110.110.110.110錛岀敤鎴峰悕涓簉oot,瀵嗙爜涓篴bcd123銆傚垯閿叆浠ヤ笅鍛戒護錛?
mysql -h110.110.110.110 -uroot -pabcd123
錛堟敞:u涓巖oot鍙互涓嶇敤鍔犵┖鏍鹼紝鍏跺畠涔熶竴鏍鳳級
3銆侀鍑篗YSQL鍛戒護錛?exit 錛堝洖杞︼級
浜屻佷慨鏀瑰瘑鐮併?/strong>
鏍煎紡錛歮ysqladmin -u鐢ㄦ埛鍚?-p鏃у瘑鐮?password 鏂板瘑鐮?
1銆佷緥1錛氱粰root鍔犱釜瀵嗙爜ab12銆傞鍏堝湪DOS涓嬭繘鍏ョ洰褰昺ysqlbin錛岀劧鍚庨敭鍏ヤ互涓嬪懡浠?
mysqladmin -uroot -password ab12
娉細鍥犱負寮濮嬫椂root娌℃湁瀵嗙爜錛屾墍浠?p鏃у瘑鐮佷竴欏瑰氨鍙互鐪佺暐浜嗐?
2銆佷緥2錛氬啀灝唕oot鐨勫瘑鐮佹敼涓篸jg345銆?
mysqladmin -uroot -pab12 password djg345
涓夈佸鍔犳柊鐢ㄦ埛銆?br />
錛堟敞鎰忥細鍜屼笂闈笉鍚岋紝涓嬮潰鐨勫洜涓烘槸MYSQL鐜涓殑鍛戒護錛屾墍浠ュ悗闈㈤兘甯︿竴涓垎鍙蜂綔涓哄懡浠ょ粨鏉熺錛?
鏍煎紡錛歡rant select on 鏁版嵁搴?* to 鐢ㄦ埛鍚岪鐧誨綍涓繪満 identified by \"瀵嗙爜\"
渚?銆佸鍔犱竴涓敤鎴穞est1瀵嗙爜涓篴bc錛岃浠栧彲浠ュ湪浠諱綍涓繪満涓婄櫥褰曪紝騫跺鎵鏈夋暟鎹簱鏈夋煡璇€佹彃鍏ャ佷慨鏀廣佸垹闄ょ殑鏉冮檺銆傞鍏堢敤浠oot鐢ㄦ埛榪炲叆MYSQL錛岀劧鍚庨敭鍏ヤ互涓嬪懡浠わ細
grant select,insert,update,delete on *.* to test1@\"%\" Identified by \"abc\";
浣嗕緥1澧炲姞鐨勭敤鎴鋒槸鍗佸垎鍗遍櫓鐨勶紝浣犳兂濡傛煇涓漢鐭ラ亾test1鐨勫瘑鐮侊紝閭d箞浠栧氨鍙互鍦╥nternet涓婄殑浠諱綍涓鍙扮數(shù)鑴戜笂鐧誨綍浣犵殑mysql鏁版嵁搴撳茍瀵逛綘鐨勬暟鎹彲浠ヤ負鎵嬈蹭負浜嗭紝瑙e喅鍔炴硶瑙佷緥2銆?
渚?銆佸鍔犱竴涓敤鎴穞est2瀵嗙爜涓篴bc,璁╀粬鍙彲浠ュ湪localhost涓婄櫥褰曪紝騫跺彲浠ュ鏁版嵁搴搈ydb榪涜鏌ヨ銆佹彃鍏ャ佷慨鏀廣佸垹闄ょ殑鎿嶄綔錛坙ocalhost鎸囨湰鍦頒富鏈猴紝鍗矼YSQL鏁版嵁搴撴墍鍦ㄧ殑閭e彴涓繪満錛夛紝榪欐牱鐢ㄦ埛鍗充嬌鐢ㄧ煡閬搕est2鐨勫瘑鐮侊紝浠栦篃鏃犳硶浠巌nternet涓婄洿鎺ヨ闂暟鎹簱錛屽彧鑳介氳繃MYSQL涓繪満涓婄殑web欏墊潵璁塊棶浜嗐?
grant select,insert,update,delete on mydb.* to test2@localhost identified by \"abc\";
濡傛灉浣犱笉鎯硉est2鏈夊瘑鐮侊紝鍙互鍐嶆墦涓涓懡浠ゅ皢瀵嗙爜娑堟帀銆?
grant select,insert,update,delete on mydb.* to test2@localhost identified by \"\";
鍦ㄤ笂綃囨垜浠浜嗙櫥褰曘佸鍔犵敤鎴楓佸瘑鐮佹洿鏀圭瓑闂銆備笅綃囨垜浠潵鐪嬬湅MYSQL涓湁鍏蟲暟鎹簱鏂歸潰鐨勬搷浣溿傛敞鎰忥細浣犲繀欏婚鍏堢櫥褰曞埌MYSQL涓紝浠ヤ笅鎿嶄綔閮芥槸鍦∕YSQL鐨勬彁紺虹涓嬭繘琛岀殑錛岃屼笖姣忎釜鍛戒護浠ュ垎鍙風粨鏉熴?
涓銆佹搷浣滄妧宸?/strong>
1銆佸鏋滀綘鎵撳懡浠ゆ椂錛屽洖杞﹀悗鍙戠幇蹇樿鍔犲垎鍙鳳紝浣犳棤欏婚噸鎵撲竴閬嶅懡浠わ紝鍙鎵撲釜鍒嗗彿鍥炶濺灝卞彲浠ヤ簡銆備篃灝辨槸璇翠綘鍙互鎶婁竴涓畬鏁寸殑鍛戒護鍒嗘垚鍑犺鏉ユ墦錛屽畬鍚庣敤鍒嗗彿浣滅粨鏉熸爣蹇楀氨O(jiān)K銆?
2銆佷綘鍙互浣跨敤鍏夋爣涓婁笅閿皟鍑轟互鍓嶇殑鍛戒護銆備絾浠ュ墠鎴戠敤榪囩殑涓涓狹YSQL鏃х増鏈笉鏀寔銆傛垜鐜板湪鐢ㄧ殑鏄痬ysql-3.23.27-beta-win銆?br />
浜屻佹樉紺哄懡浠?/strong>
1銆佹樉紺烘暟鎹簱鍒楄〃銆?
show databases;
鍒氬紑濮嬫椂鎵嶄袱涓暟鎹簱錛歮ysql鍜宼est銆俶ysql搴撳緢閲嶈瀹冮噷闈㈡湁MYSQL鐨勭郴緇熶俊鎭紝鎴戜滑鏀瑰瘑鐮佸拰鏂板鐢ㄦ埛錛屽疄闄呬笂灝辨槸鐢ㄨ繖涓簱榪涜鎿嶄綔銆?
2銆佹樉紺哄簱涓殑鏁版嵁琛細
use mysql錛?/span> 錛忥紡鎵撳紑搴擄紝瀛﹁繃FOXBASE鐨勪竴瀹氫笉浼氶檶鐢熷惂
show tables;
3銆佹樉紺烘暟鎹〃鐨勭粨鏋勶細
describe 琛ㄥ悕;
4銆佸緩搴擄細
create database 搴撳悕;
5銆佸緩琛細
use 搴撳悕錛?
create table 琛ㄥ悕 (瀛楁璁懼畾鍒楄〃)錛?/span>
6銆佸垹搴撳拰鍒犺〃:
drop database 搴撳悕;
drop table 琛ㄥ悕錛?/span>
7銆佸皢琛ㄤ腑璁板綍娓呯┖錛?
delete from 琛ㄥ悕;
8銆佹樉紺鴻〃涓殑璁板綍錛?
select * from 琛ㄥ悕;
浠庢枃鏈枃浠舵墽琛孲QL璇彞
涓夈佷竴涓緩搴撳拰寤鴻〃浠ュ強鎻掑叆鏁版嵁鐨勫疄渚?
|
娉細鍦ㄥ緩琛ㄤ腑錛?錛夊皢ID璁句負闀垮害涓?鐨勬暟瀛楀瓧孌?int(3)騫惰瀹冩瘡涓褰曡嚜鍔ㄥ姞涓:auto_increment騫朵笉鑳戒負絀?not null鑰屼笖璁╀粬鎴愪負涓誨瓧孌祊rimary key錛?錛夊皢NAME璁句負闀垮害涓?0鐨勫瓧絎﹀瓧孌碉紙3錛夊皢ADDRESS璁句負闀垮害50鐨勫瓧絎﹀瓧孌碉紝鑰屼笖緙虹渷鍊間負娣卞湷銆倂archar鍜宑har鏈変粈涔堝尯鍒憿錛屽彧鏈夌瓑浠ュ悗鐨勬枃绔犲啀璇翠簡銆傦紙4錛夊皢YEAR璁句負鏃ユ湡瀛楁銆?
濡傛灉浣犲湪mysql鎻愮ず絎﹂敭鍏ヤ笂闈㈢殑鍛戒護涔熷彲浠ワ紝浣嗕笉鏂逛究璋冭瘯銆備綘鍙互灝嗕互涓婂懡浠ゅ師鏍峰啓鍏ヤ竴涓枃鏈枃浠朵腑鍋囪涓簊chool.sql錛岀劧鍚庡鍒跺埌c:\\涓嬶紝騫跺湪DOS鐘舵佽繘鍏ョ洰褰昞\mysql\\bin錛岀劧鍚庨敭鍏ヤ互涓嬪懡浠わ細
mysql -uroot -p瀵嗙爜 < c:\\school.sql
濡傛灉鎴愬姛錛岀┖鍑轟竴琛屾棤浠諱綍鏄劇ず錛涘鏈夐敊璇紝浼氭湁鎻愮ず銆傦紙浠ヤ笂鍛戒護宸茬粡璋冭瘯錛屼綘鍙灝?/鐨勬敞閲婂幓鎺夊嵆鍙嬌鐢級銆?br />
鍥涖佸皢鏂囨湰鏁版嵁杞埌鏁版嵁搴撲腑
1銆佹枃鏈暟鎹簲絎﹀悎鐨勬牸寮忥細瀛楁鏁版嵁涔嬮棿鐢╰ab閿殧寮錛宯ull鍊肩敤\\n鏉ヤ唬鏇?
渚嬶細
3 rose 娣卞湷浜屼腑 1976-10-10
4 mike 娣卞湷涓涓?1975-12-23
2銆佹暟鎹紶鍏ュ懡浠?load data local infile \"鏂囦歡鍚峔" into table 琛ㄥ悕;
娉ㄦ剰錛氫綘鏈濂藉皢鏂囦歡澶嶅埗鍒癨\mysql\\bin鐩綍涓嬶紝騫朵笖瑕佸厛鐢╱se鍛戒護鎵撹〃鎵鍦ㄧ殑搴撱?
浜斻佸浠芥暟鎹簱錛氾紙鍛戒護鍦―OS鐨刓\mysql\\bin鐩綍涓嬫墽琛岋級
mysqldump --opt school>school.bbb
娉ㄩ噴:灝嗘暟鎹簱school澶囦喚鍒皊chool.bbb鏂囦歡錛宻chool.bbb鏄竴涓枃鏈枃浠訛紝鏂囦歡鍚嶄換鍙栵紝鎵撳紑鐪嬬湅浣犱細鏈夋柊鍙戠幇銆?
鍚庤錛氬叾瀹濵YSQL鐨勫鏁版嵁搴撶殑鎿嶄綔涓庡叾瀹冪殑SQL綾繪暟鎹簱澶у悓灝忓紓錛屾?zhèn)ㄦ渶濂芥壘鏈皢SQL鐨勪功鐪嬬湅銆傛垜鍦ㄨ繖閲屽彧浠嬬粛涓浜涘熀鏈殑錛屽叾瀹炴垜涔熷氨鍙噦榪欎簺浜嗭紝鍛靛懙銆傛渶濂界殑MYSQL鏁欑▼榪樻槸"鏅忓瓙"璇戠殑"MYSQL涓枃鍙傝冩墜鍐?涓嶄粎鍏嶈垂姣忎釜鐩稿叧緗戠珯閮芥湁涓嬭澆錛岃屼笖瀹冩槸鏈鏉冨▉鐨勩傚彲鎯滀笉鏄薄\"PHP4涓枃鎵嬪唽\"閭f牱鏄痗hm鐨勬牸寮忥紝鍦ㄦ煡鎵懼嚱鏁板懡浠ょ殑鏃跺欎笉澶柟渚褲?
innodb
InnoDB 緇?MySQL 鎻愪緵浜嗗叿鏈変簨鍔?commit)銆佸洖婊?rollback)鍜屽穿婧冧慨澶嶈兘鍔?crash recovery capabilities)鐨勪簨鍔″畨鍏?transaction-safe (ACID compliant))鍨嬭〃銆侷nnoDB 鎻愪緵浜嗚閿?locking on row level)錛屾彁渚涗笌 Oracle 綾誨瀷涓鑷寸殑涓嶅姞閿佽鍙?non-locking read in SELECTs)銆傝繖浜涚壒鎬у潎鎻愰珮浜嗗鐢ㄦ埛騫跺彂鎿嶄綔鐨勬ц兘琛ㄧ幇銆傚湪InnoDB琛ㄤ腑涓嶉渶瑕佹墿澶ч攣瀹?lock escalation)錛屽洜涓?InnoDB 鐨勫垪閿佸畾(row level locks)閫傚疁闈炲父灝忕殑絀洪棿銆侷nnoDB 鏄?MySQL 涓婄涓涓彁渚涘閿害鏉?FOREIGN KEY constraints)鐨勮〃寮曟搸銆?/p>
InnoDB 鐨勮璁$洰鏍囨槸澶勭悊澶у閲忔暟鎹簱緋葷粺錛屽畠鐨?CPU 鍒╃敤鐜囨槸鍏跺畠鍩轟簬紓佺洏鐨勫叧緋繪暟鎹簱寮曟搸鎵涓嶈兘姣旂殑銆傚湪鎶鏈笂錛孖nnoDB 鏄竴濂楁斁鍦?MySQL 鍚庡彴鐨勫畬鏁存暟鎹簱緋葷粺錛孖nnoDB 鍦ㄤ富鍐呭瓨涓緩绔嬪叾涓撶敤鐨勭紦鍐叉睜鐢ㄤ簬楂橀熺紦鍐叉暟鎹拰绱㈠紩銆?InnoDB 鎶婃暟鎹拰绱㈠紩瀛樻斁鍦ㄨ〃絀洪棿閲岋紝鍙兘鍖呭惈澶氫釜鏂囦歡錛岃繖涓庡叾瀹冪殑涓嶄竴鏍鳳紝涓句緥鏉ヨ錛屽湪 MyISAM 涓紝琛ㄨ瀛樻斁鍦ㄥ崟鐙殑鏂囦歡涓侷nnoDB 琛ㄧ殑澶у皬鍙彈闄愪簬鎿嶄綔緋葷粺鐨勬枃浠跺ぇ灝忥紝涓鑸負 2 GB銆?/p>
鍦?http://www.innodb.com/ 涓婂彲浠ユ壘鍒?InnoDB 鏈鏂扮殑淇℃伅銆侷nnoDB 鎵嬪唽鐨勬渶鏂扮増鏈繪槸琚斁緗湪閭i噷錛屽茍涓斿湪閭i噷鍙互寰楀埌 InnoDB 鐨勫晢涓氳鍙?order commercial licenses)浠ュ強鏀寔銆?/p>
InnoDB 鐜板湪(2001騫村崄鏈?鍦ㄤ竴浜涘ぇ鐨勯渶楂樻ц兘鐨勬暟鎹簱绔欑偣涓婅浣跨敤銆傝憲鍚嶇殑 Internet 鏂伴椈绔欑偣 Slashdot.org 灝辨槸浣跨敤鐨?InnoDB銆?Mytrix, Inc. 鍦?InnoDB 琛ㄤ笂瀛樺偍浜嗚秴榪?1 TB 鐨勬暟鎹紝鑰屼笖鍙﹀鐨勪竴涓珯鐐瑰湪 InnoDB 琛ㄤ笂澶勭悊鐫騫沖潎姣忕 800 嬈$殑鎻掑叆/鏇存柊鐨勮礋杞姐?
MyISAM
MyISAM 鏄疢ySQL緙虹渷瀛樿串寮曟搸 .
姣忓紶MyISAM 妗岃瀛樻斁鍦ㄧ洏鍦ㄤ笁涓枃浠?銆俧rm 鏂囦歡瀛樻斁琛ㄦ牸瀹氫箟銆?鏁版嵁鏂囦歡鏄疢YD (MYData) 銆?绱㈠紩鏂囦歡鏄疢YI (MYIndex) 寮曚幾銆?/p>
浠ヤ笅鏄竴浜涚粏鑺傚拰鍏蜂綋瀹炵幇鐨勫樊鍒細
1.InnoDB涓嶆敮鎸丗ULLTEXT綾誨瀷鐨勭儲寮曘?br /> 2.InnoDB 涓笉淇濆瓨琛ㄧ殑鍏蜂綋琛屾暟錛屼篃灝辨槸璇達紝鎵цselect count(*) from table鏃訛紝InnoDB瑕佹壂鎻忎竴閬嶆暣涓〃鏉ヨ綆楁湁澶氬皯琛岋紝浣嗘槸MyISAM鍙綆鍗曠殑璇誨嚭淇濆瓨濂界殑琛屾暟鍗沖彲銆傛敞鎰忕殑鏄紝褰揷ount(*)璇彞鍖呭惈 where鏉′歡鏃訛紝涓ょ琛ㄧ殑鎿嶄綔鏄竴鏍風殑銆?br /> 3.瀵逛簬AUTO_INCREMENT綾誨瀷鐨勫瓧孌碉紝InnoDB涓繀欏誨寘鍚彧鏈夎瀛楁鐨勭儲寮曪紝浣嗘槸鍦∕yISAM琛ㄤ腑錛屽彲浠ュ拰鍏朵粬瀛楁涓璧峰緩绔嬭仈鍚堢儲寮曘?br /> 4.DELETE FROM table鏃訛紝InnoDB涓嶄細閲嶆柊寤虹珛琛紝鑰屾槸涓琛屼竴琛岀殑鍒犻櫎銆?br /> 5.LOAD TABLE FROM MASTER鎿嶄綔瀵笽nnoDB鏄笉璧蜂綔鐢ㄧ殑錛岃В鍐蟲柟娉曟槸棣栧厛鎶奍nnoDB琛ㄦ敼鎴怣yISAM琛紝瀵煎叆鏁版嵁鍚庡啀鏀規(guī)垚InnoDB琛紝浣嗘槸瀵逛簬浣跨敤鐨勯澶栫殑InnoDB鐗規(guī)э紙渚嬪澶栭敭錛夌殑琛ㄤ笉閫傜敤銆?/p>
鍙﹀錛孖nnoDB琛ㄧ殑琛岄攣涔熶笉鏄粷瀵圭殑錛屽鏋滃湪鎵ц涓涓猄QL璇彞鏃禡ySQL涓嶈兘紜畾瑕佹壂鎻忕殑鑼冨洿錛孖nnoDB琛ㄥ悓鏍蜂細閿佸叏琛紝渚嬪update table set num=1 where name like “%aaa%”
浠諱綍涓縐嶈〃閮戒笉鏄竾鑳界殑錛屽彧鐢ㄦ伆褰撶殑閽堝涓氬姟綾誨瀷鏉ラ夋嫨鍚堥傜殑琛ㄧ被鍨嬶紝鎵嶈兘鏈澶х殑鍙戞尌MySQL鐨勬ц兘浼樺娍銆?/p>