锘??xml version="1.0" encoding="utf-8" standalone="yes"?> 浠ヤ笅鎵鏈夊懡浠ら兘鏄湪榪涘叆mysql鐩戞帶鍣ㄤ腑鎵ц鐨勶細
浣滆?鑷敱鐨勭尓 鏉ユ簮: 綾誨埆:鏁版嵁搴撴妧鏈? 鏃ユ湡:2005-11-02 浠婃棩/鎬繪祻瑙? 1/810
a. show tables鎴杝how tables from database_name; // 鏄劇ず褰撳墠鏁版嵁搴?/FONT>涓墍鏈夎〃鐨勫悕縐?
b. show databases; // 鏄劇ずmysql涓墍鏈?B>鏁版嵁搴?/FONT>鐨勫悕縐?
c. show columns from table_name from database_name; 鎴杝how columns from database_name.table_name; // 鏄劇ず琛ㄤ腑鍒楀悕縐?
d. show grants for user_name; // 鏄劇ず涓涓敤鎴風殑鏉冮檺錛屾樉紺虹粨鏋滅被浼間簬grant 鍛戒護
e. show index from table_name; // 鏄劇ず琛ㄧ殑绱㈠紩
f. show status; // 鏄劇ず涓浜涚郴緇熺壒瀹氳祫婧愮殑淇℃伅錛屼緥濡傦紝姝e湪榪愯鐨勭嚎紼嬫暟閲?
g. show variables; // 鏄劇ず緋葷粺鍙橀噺鐨勫悕縐板拰鍊?
h. show processlist; // 鏄劇ず緋葷粺涓鍦ㄨ繍琛岀殑鎵鏈夎繘紼嬶紝涔熷氨鏄綋鍓嶆鍦ㄦ墽琛岀殑鏌ヨ銆傚ぇ澶氭暟鐢ㄦ埛鍙互鏌ョ湅
浠栦滑鑷繁鐨勮繘紼嬶紝浣嗘槸濡傛灉浠栦滑鎷ユ湁process鏉冮檺錛屽氨鍙互鏌ョ湅鎵鏈変漢鐨勮繘紼嬶紝鍖呮嫭瀵嗙爜銆?
i. show table status; // 鏄劇ず褰撳墠浣跨敤鎴栬呮寚瀹氱殑database涓殑姣忎釜琛ㄧ殑淇℃伅銆備俊鎭寘鎷〃綾誨瀷鍜岃〃鐨勬渶鏂版洿鏂版椂闂?
j. show privileges; // 鏄劇ず鏈嶅姟鍣ㄦ墍鏀寔鐨勪笉鍚屾潈闄?
k. show create database database_name; // 鏄劇ずcreate database 璇彞鏄惁鑳藉鍒涘緩鎸囧畾鐨?B>鏁版嵁搴?/FONT>
l. show create table table_name; // 鏄劇ずcreate database 璇彞鏄惁鑳藉鍒涘緩鎸囧畾鐨?B>鏁版嵁搴?/FONT>
m. show engies; // 鏄劇ず瀹夎浠ュ悗鍙敤鐨勫瓨鍌ㄥ紩鎿庡拰榛樿寮曟搸銆?
n. show innodb status; // 鏄劇ずinnoDB瀛樺偍寮曟搸鐨勭姸鎬?
o. show logs; // 鏄劇ずBDB瀛樺偍寮曟搸鐨勬棩蹇?
p. show warnings; // 鏄劇ず鏈鍚庝竴涓墽琛岀殑璇彞鎵浜х敓鐨勯敊璇佽鍛婂拰閫氱煡
q. show errors; // 鍙樉紺烘渶鍚庝竴涓墽琛岃鍙ユ墍浜х敓鐨勯敊璇?
]]>
2006-02-06 04:58 PM
鏈枃涓轟綘浠嬬粛MySQL涓崄鏉¢矞涓轟漢鐭ョ殑鎶宸с?/P>
MySQL鏄撳鏄撶敤錛屼笖闄勫甫涓板瘜鐨勬妧鏈枃妗o紝榪欎簩涓洜绱犱嬌涔嬭騫挎硾搴旂敤銆傜劧鑰岋紝闅忕潃MySQL鍙戝睍涔嬭繀閫燂紝鍗充嬌涓涓狹ySQL鑰佹墜鏈夋椂涔熶細涓鴻杞歡鍑哄叾涓嶆剰鐨勫姛鑳芥劅鍙廣傛湰鏂囧皢涓轟綘浠嬬粛榪欎簺涓嶄負浜虹煡鐨勭壒鎬с?/P>
浠ML鏍煎紡鏌ョ湅鏌ヨ緇撴灉
閫氳繃浣跨敤浼犵粺鈥攛ml 閫夐」璋冪敤MySQL鍛戒護琛屽鎴風▼搴忥紝浣犲彲浠ヤ互XML鏍煎紡(鑰屼笉鏄紶緇熺殑鍒楄〃褰㈠紡)鏉ユ煡鐪婱ySQL鏌ヨ緇撴灉銆傚鏋滀綘鎵撶畻灝嗘煡璇㈣緭鍑轟笌鍏跺畠紼嬪簭闆嗘垚鍦ㄤ竴璧鳳紝榪欎竴鎶宸ч潪甯告湁鐢紝榪欓噷鏄竴涓緥瀛愶細
琛ˋ
shell> mysql --xml
mysql> SELECT * FROM test.stories;
2 rows in set (0.11 sec)
蹇熼噸寤虹儲寮?/P>
閫氬父鎯呭喌涓嬶紝濡傛灉浣犳兂鏀瑰彉鏈嶅姟鍣ㄧ殑鍏ㄦ枃鎼滅儲鍙橀噺錛屼綘闇瑕佸湪琛ㄦ牸涓噸鏂板緩绔嬪叏鏂囩儲寮曪紝浠ョ‘淇濅綘鐨勬洿鏂板緱鍒版槧灝勩傝繖涓鎿嶄綔灝嗕細鑺辮垂澶ч噺鐨勬椂闂達紝鐗瑰埆鏄鏋滀綘闇瑕佸鐞嗗緢澶氭暟鎹殑鏃跺欍備竴縐嶅揩閫熺殑瑙e喅鏂規硶鏄嬌鐢≧EPAIR TABLE鍛戒護錛屼互涓嬩負婕旂ず榪囩▼錛?/P>
琛˙
mysql> REPAIR TABLE content QUICK;
+-----------+--------+----------+----------+
| Table| Op| Msg_type | Msg_text |
+-----------+--------+----------+----------+
| content| repair | status| OK|
+-----------+--------+----------+----------+
1 row in set (0.05 sec)
鍘嬬緝涓瀹氱殑琛ㄦ牸綾誨瀷
濡傛灉浣犲鐞嗙殑鏄彧璇籑yISAM琛ㄦ牸錛孧ySQL鍏佽浣犲皢鍏跺帇緙╀互鑺傜渷紓佺洏絀洪棿銆傚姝ゅ彲浠ヤ嬌鐢ㄥ寘鎷琺yisampack錛屽涓嬫墍紺猴細
琛–
shell> myisampackmovies.MYI
Compressing movies.MYD: (146 records)
- Calculating statistics
- Compressing file
41.05%
浣跨敤浼犵粺SQL
MySQL鏀寔SQL鏌ヨ涓殑浼犵粺鐢ㄦ硶錛屾敮鎸両F涓嶤ASE緇撴瀯銆備互涓嬫槸涓涓畝鍗曠殑渚嬪瓙錛?/P>
琛―
mysql> SELECT IF (priv=1, 'admin', 'guest') As usertype FROM privs WHERE username = 'joe';
+----------+
| usertype |
+----------+
| admin|
+----------+
1 row in set (0.00 sec)
浠SV鏍煎紡杈撳嚭琛ㄦ牸鏁版嵁
MySQL杈撳嚭鏂囦歡鍖呭惈涓涓叏閮⊿QL鍛戒護鍒楄〃銆傚鏋滀綘鎯沖皢杈撳嚭鏂囦歡瀵煎叆鍒癕ySQL錛岃繖涓鍔熻兘闈炲父瀹炵敤錛屼絾濡傛灉鐩爣紼嬪簭(姣斿Excel)涓嶈兘涓嶴QL鐩鎬簰閫氳錛岃繖涓鏂規硶灝嗚涓嶉氥傚湪榪欑鎯呭喌涓嬶紝鍙互閫氳繃鍛婅瘔MySQL浠SV鏍煎紡寤虹珛杈撳嚭鏂囦歡錛岃繖縐岰SV鏍煎紡寰堟柟渚垮湴瀵煎叆鍒扮粷澶ч儴鍒嗙殑紼嬪簭銆傝繖閲屾紨紺轟簡mysqldump鐨勬搷浣滆繃紼嬶細
shell> mysqldump -T . --fields-terminated-by=", " mydbmytable
榪欏皢鍦ㄥ綋鍓嶇洰褰曚腑鐢熸垚涓涓枃鏈枃浠訛紝鍖呭惈鏉ヨ嚜mydb.mytable鍒楄〃涓互閫楀彿涓洪棿闅旂鐨勮褰曘?/P>
浠ユ縺媧籹trict妯″紡鍑忓皯鈥渂ad鈥濇暟鎹殑鍑虹幇
MySQL鏈嶅姟鍣ㄨ兘澶熶互澶氱涓嶅悓鐨勬ā寮忚繍琛岋紝鑰屾瘡涓縐嶉兘閽堝浜庣壒瀹氱殑鐩殑鑰屼紭鍖栥傚湪榛樿鎯呭喌涓嬶紝娌℃湁璁劇疆妯″紡銆傜劧鑰岋紝閫氳繃鍦ㄦ湇鍔″櫒鍛戒護琛屼腑娣誨姞浠ヤ笅閫夐」鍙互寰堝鏄撳湴鏀瑰彉妯″紡鐨勮緗茍灝哅ySQL浠モ渟trict鈥濇ā寮忚繍琛岋細
shell> mysqld --sql_mode="STRICT_ALL_TABLES" &
鍦ㄢ渟trict鈥濇ā寮忎笅錛岄氳繃MySQL鐨勪腑姝㈡煡璇㈡墽琛屽茍榪斿洖涓涓敊璇紝鏈嶅姟鍣ㄧ殑寰堝鑷姩淇鍔熻兘閮借鏃犳晥鍖栥傚悓鏍鳳紝璇ユā寮忎笅涔熷皢浼氭墽琛屾洿涓轟弗鏍肩殑鏃墮棿媯鏌ャ?/P>
鐩戣鏈嶅姟鍣?/P>
浣犲彲浠ラ氳繃榪愯SHOW STATUS鍛戒護鑾峰緱涓浠芥湇鍔″櫒榪愯涓庣粺璁$殑鎶ュ憡錛屽寘鎷墦寮榪炴帴鐨勬鏁幫紝嬋媧繪煡璇㈡鏁幫紝鏈嶅姟鍣ㄦ甯歌繍琛屾椂闂寸瓑絳夈備緥濡傦細
琛?E
mysql> SHOW STATUS;
+------------------+-------+
| Variable_name| Value |
+------------------+-------+
| Aborted_clients| 0|
| Aborted_connects | 0|
...
| Uptime| 851|
+------------------+-------+
156 rows in set (0.16 sec)
鑷姩榪斿洖CREATE TABLE浠g爜
MySQL鍏佽浣犺嚜鍔ㄨ幏寰桽QL鍛戒護閲嶆柊寤虹珛涓涓壒瀹氱殑琛ㄦ牸銆傚彧綆鍗曞湴榪愯SHOW CREATE TABLE鍛戒護錛屽茍鏌ョ湅琛ㄦ牸寤虹珛浠g爜錛屽涓嬫墍紺猴細
琛?F
mysql> SHOW CREATE TABLE products;
-----------------------------------------------------
| Table| Create Table
+----------+-----------------------------------------
| products | CREATE TABLE `products` (
`id` int(8) NOT NULL auto_increment,
`name` varchar(255) NOT NULL default '',
`price` int(10) default NULL,
PRIMARY KEY(`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 |
+----------+-----------------------------------------
1 row in set (0.27 sec)
寤虹珛涓涓洿涓烘湁鐢ㄧ殑鍛戒護鎻愮ず錛?/P>
鍦ㄧ己鐪佹儏鍐典笅錛孧ySQL鍛戒護琛屽鎴風▼搴忔樉紺轟竴涓畝鍗曠殑mysql>鎻愮ず絎︺傜劧鑰岋紝浣犲彲浠ヤ嬌鐢ㄧ壒瀹氱殑淇敼鍐呭鏉ユ敼鍙樿繖涓鎻愮ず絎︿嬌涔嬪彉寰楁洿涓烘湁鏁堬紝榪欎簺鍐呭鍖呮嫭錛氬綋鍓嶇敤鎴峰悕縐幫紝涓繪満鍚嶇О錛屼互鍙婂綋鍓嶉夋嫨鐨勬暟鎹簱銆傚涓嬫墍紺猴細
琛?G
mysql> prompt \U:/\d>
PROMPT set to '\U:/\d>'
root@localhost:/db1>
浠?A target=_blank>榪欓噷鐨勬枃妗f枃浠?/A>浣犲彲浠ヨ幏寰楁敮鎸丮ySQL瀹㈡埛紼嬪簭鏇存敼鐨勪竴涓畬鏁村垪琛ㄣ?BR>