锘??xml version="1.0" encoding="utf-8" standalone="yes"?> 鎵撳紑MySQL/bin鐩綍涓嬭緭鍏ysql -uroot -p ,榛樿鏄病鏈夊瘑鐮佺殑錛屼竴鑸槸鐩存帴鎸夊洖杞﹁繘鍏ワ紝浣嗘槸浼氬嚭鐜?/span> 鍦╟md閲岄潰杈撳叆mysql -u root-p灝卞彲浠ヤ笉鐢ㄥ瘑鐮佺櫥褰曚簡錛屽嚭鐜皃assword錛氱殑鏃跺欑洿鎺ュ洖杞﹀彲浠ヨ繘鍏ワ紝涓嶄細鍑虹幇ERROR 1045(28000)錛屼絾寰堝鎿嶄綔閮戒細鍙楅檺鍒訛紝鍥犱負娌℃湁涓嶈兘grant錛堟病鏈夋潈闄愶級鐨勫瘑鐮?/span> (1).榪涘叆mysql鏁版嵁搴擄細 mysql> use mysql;Database changed (2).緇檙oot鐢ㄦ埛璁劇疆鏂板瘑鐮乵ysql> update user set authentication_string=password("123456") where user="root"; (3).鍒鋒柊鏁版嵁搴?nbsp;錛堜竴瀹氳璁板緱鍒鋒柊錛塵ysql>flush privileges; QueryOK, 0 rows affected (0.00 sec) (4).閫鍑簃ysql錛歮ysql> quit
2.鍦╩ysql-5.7.10-winx64鐩綍涓嬶紝鏂板緩涓涓猰y.ini銆傚鍒朵笅闈㈢殑浠g爜淇濆瓨灝卞彲浠ヤ簡銆?/span>
; 璁劇疆mysql瀹㈡埛绔粯璁ゅ瓧絎﹂泦
default-character-set=utf8
[mysqld]
;璁劇疆3306绔彛
port = 3306
; 璁劇疆mysql鐨勫畨瑁呯洰褰?/span>
basedir=D:\MYSQL\mysql-5.7.10-winx64
; 璁劇疆mysql鏁版嵁搴撶殑鏁版嵁鐨勫瓨鏀劇洰褰?/span>
datadir=D:\MYSQL\mysql-5.7.10-winx64\data
; 鍏佽鏈澶ц繛鎺ユ暟
max_connections=200
; 鏈嶅姟绔嬌鐢ㄧ殑瀛楃闆嗛粯璁や負8姣旂壒緙栫爜鐨刲atin1瀛楃闆?/span>
character-set-server=utf8
; 鍒涘緩鏂拌〃鏃跺皢浣跨敤鐨勯粯璁ゅ瓨鍌ㄥ紩鎿?/span>
default-storage-engine=MYISAM
4.鍦╞in鐩綍涓嬶紝榪愯>mysqld install
5.鐒跺悗榪愯>mysqld --initialize
榪欎釜鍒濆鍖栨搷浣滃皢my.ini涓殑datadir鐩綍涓嬬敓鎴愭暟鎹簱鏂囦歡錛屼篃鍙互灝嗚閲岄潰鐨勬枃浠跺叏鍒犻櫎銆傞噸鏂拌緭鍏ヨ鍛戒護鍒濆鍖?br />6.鍚姩鏈嶅姟>net start mysql
7. 淇敼瀵嗙爜
ERROR 1045 (28000): Access denied for user'root'@'localhost'(using password: YES)鐨勯敊璇?銆?/span>
瑙e喅鐨勬柟娉曢兘鏄湪鍦ㄩ厤緗枃浠禰mysqld]鏉$洰涓嬪姞涓鏉″懡浠kip-grant-tables鐒跺悗閲嶅惎鏈嶅姟灝卞彲浠ョ暐榪囧瘑鐮佽繘鍏ヤ簡銆?/span>
Query OK,1 rows affected(0.01 sec)Rows matched:1 Changed:1Warnings: 0
8.濡傛灉鍐嶆榪涘叆杈撳叆 >show databases;鎻愮ず浠ヤ笅閿欒:
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2. 鏈熸湜浠ヤ笂id涓?錛?鐨勫垎鍒彧淇濈暀涓ゆ潯
3.鏂板緩涓涓復鏃惰〃錛屽瓧孌靛悓涓婏紝騫舵柊澧炰竴涓猲um瀛楁涓鴻嚜澧炪傚茍鎻掑叆
insert into t_tmp(id,value) select id,value from t_value order by id;
4.浜庢槸t_tmp濡備笅錛?br />
5.鍐嶉氳繃浠ヤ笅SQL鏌ュ嚭
]]>
]]>
]]>
CONV(N,from_base,to_base)
鍦ㄤ笉鍚岀殑鏁板瓧鍩烘暟涔嬮棿杞崲鏁板瓧銆傚皢鏁板瓧 N 浠巉rom_base 杞崲鍒?to_base錛屽茍浠ュ瓧絎︿覆褰㈠紡榪斿洖銆傚鏋滀換浣曚竴涓弬鏁頒負 NULL錛岄偅涔堣繑鍥炲間篃涓?NULL銆傚弬鏁?N 琚В閲婁負鏄竴涓暣鏁幫紝浣嗘槸涔熷彲浠ヨ鎸囧畾涓轟竴涓暣鏁版垨涓涓瓧絎︿覆銆傛渶灝忓熀涓?2錛屾渶澶у熀涓?36銆傚鏋?to_base 鏄竴涓礋鍊鹼紝N 灝嗚鐪嬩綔涓烘槸涓涓湁絎﹀彿鏁板瓧銆傚惁鍒欙紝N 琚涓烘槸鏃犵鍙風殑銆侰ONV 浠?64 浣嶇簿搴﹀伐浣溿?br />
mysql> select conv(100,10,2);
+----------------+
| conv(100,10,2) |
+----------------+
| 1100100 |
+----------------+
銆鍦輯锝欙汲錛憋棘鍛戒護紿楀彛涓嬭緭鍏ワ技锝撳氨鍙互鏌ョ湅褰撳墠鏁版嵁搴撶殑緙栫爜浜嗐?/span>
銆淇敼鏂規硶
欏甸潰鍜孞ava鏂囦歡涓殑淇敼灝變笉璇翠簡錛屽ぇ瀹惰偗瀹氶兘浼氾紝鍙璇存庢牱淇敼MySQL鐨勫惂銆?/span>
淇敼鏁版嵁搴撶紪鐮佺殑鍛戒護鏄細ALTER DATABASE `test` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin
銆淇敼琛ㄧ殑緙栫爜鐨勫懡浠ゆ槸錛欰LTER TABLE `category` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin
銆淇敼琛ㄤ腑瀛楁鐨勭紪鐮佺殑鍛戒護鏄細ALTER TABLE `test` CHANGE `dd` `dd` VARCHAR( 45 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL
淇敼MySQL榛樿緙栫爜鏂規錛屽湪windows鐜涓?/strong>鍙互鐩存帴鐢∕ysql Server Instance Config Wizard 榪涜璁劇疆
Linux鐜涓?/strong>
/etc/init.d/mysql start (stop) 涓哄惎鍔ㄥ拰鍋滄鏈嶅姟鍣?/span>
銆銆/etc/mysql/ 涓昏閰嶇疆鏂囦歡鎵鍦ㄤ綅緗?my.cnf
銆銆/var/lib/mysql/ 鏀劇疆鐨勬槸鏁版嵁搴撹〃鏂囦歡澶癸紝榪欓噷鐨刴ysql鐩稿綋浜巜indows涓媘ysql鐨刣ate鏂囦歡澶?/p>
銆銆鍚姩mysql鍚庯紝浠oot鐧誨綍mysql
銆銆isher@isher-ubuntu:~$ mysql -u root
銆銆>show variables like 'character%'; #鎵ц緙栫爜鏄劇ず
銆銆+--------------------------+----------------------------+
銆銆| Variable_name | Value |
銆銆+--------------------------+----------------------------+
銆銆| character_set_client | latin1 |
銆銆| character_set_connection | latin1 |
銆銆| character_set_database | latin1 |
銆銆| character_set_filesystem | binary |
銆銆| character_set_results | latin1 |
銆銆| character_set_server | latin1 |
銆銆| character_set_system | utf8 |
銆銆| character_sets_dir | /usr/share/mysql/charsets/ |
銆銆+--------------------------+----------------------------+
銆銆鍦ㄦ煇浜涙椂鍊欙紝鎴戜滑緇淇敼mysql榛樿鏁版嵁搴撶殑緙栫爜錛屼互淇濊瘉鏌愪簺榪佺Щ鐨勭▼搴忓彲浠ユ甯告樉紺猴紝緙栬緫my.cnf鏂囦歡榪涜緙栫爜淇敼,windows鍙互鐩存帴鐢∕ysql Server Instance Config Wizard 榪涜璁劇疆
銆銆鍦╨inux涓嬩慨鏀?涓猰y.cnf鐨?涓?etc/mysql/my.cnf鏂囦歡
銆銆鎵懼埌瀹㈡埛绔厤緗甗client] 鍦ㄤ笅闈㈡坊鍔?/p>
銆銆default-character-set=utf8 榛樿瀛楃闆嗕負utf8
銆銆鍦ㄦ壘鍒癧mysqld] 娣誨姞
銆銆default-character-set=utf8 榛樿瀛楃闆嗕負utf8
銆銆init_connect='SET NAMES utf8' (璁懼畾榪炴帴mysql鏁版嵁搴撴椂浣跨敤utf8緙栫爜錛屼互璁﹎ysql鏁版嵁搴撲負utf8榪愯)
銆銆淇敼濂藉悗錛岄噸鏂板惎鍔╩ysql 鍗沖彲錛屾煡璇竴涓媠how variables like 'character%';
銆銆+--------------------------+----------------------------+
銆銆| Variable_name | Value |
銆銆+--------------------------+----------------------------+
銆銆| character_set_client | utf8 |
銆銆| character_set_connection | utf8 |
銆銆| character_set_database | utf8 |
銆銆| character_set_filesystem | binary |
銆銆| character_set_results | utf8 |
銆銆| character_set_server | utf8 |
銆銆| character_set_system | utf8 |
銆銆| character_sets_dir | /usr/share/mysql/charsets/ |
銆銆+--------------------------+----------------------------+
銆銆姝ゆ柟娉曠敤浜庢爣鍑唌ysql鐗堟湰鍚屾牱鏈夋晥錛屽浜?etc/my.cnf鏂囦歡錛岄渶瑕佷粠mysql/support-files鐨勬枃浠跺すcp my-large.cnf涓浠藉埌/etc/my.cnf銆?/p>
涓銆乺oot鐢ㄦ埛瀵嗙爜鐨勭淮鎶わ細
鐢變簬瀹夎MySQL瀹屽悗,MySQL浼氳嚜鍔ㄦ彁渚涗竴涓笉甯﹀瘑鐮佺殑root鐢ㄦ埛錛屼負浜嗗畨鍏ㄨ搗瑙佺粰root璁劇疆瀵嗙爜錛?/p>
#mysqladmin -u root password 123 (123涓哄瘑鐮侊紝涔熷彲浠ュ啓鎴?'123'鎴?123") 錛?/p>
璁劇疆瀵嗙爜鍚庣櫥鍏ユ椂灝變笉鑳界洿鎺ヨ緭鍏ysql浜嗭紝蹇呴』璺熶簺鍙傛暟浜?濡備笅錛?/p>
[root@localhost ~]# mysql -u root -p 錛?u 鍚庤窡鐧誨叆鐨勭敤鎴峰悕錛?p 鎻愮ず瑕佸瘑鐮佺櫥鍏ワ級
Enter password:(杈撳叆瀵嗙爜)
淇敼瀵嗙爜錛?/p>
[root@localhost ~] #mysqladmin -u root -p password 123456 (password 鍚庤窡鐨勬槸瑕佹洿鏂扮殑鏂板瘑鐮?
Enter password:(杈撳叆鍘熷瀵嗙爜錛屽洖杞﹀嵆鍙?
浜屻佸叾浠栫敤鎴風殑澧炲姞鍜屽垹闄わ細
浠oot鐢ㄦ埛鐧誨叆錛屽湪mysql涓湁涓寮爉ysql.user琛ㄦ槸瀛樺偍MySQL涓墍鏈夌敤鎴風殑淇℃伅琛紝鎵浠ュ彲浠ョ洿鎺ュ鍔犲垹闄よ繖涓〃鐨勮褰曞氨鍙鍔犲拰鍒犻櫎鐢ㄦ埛錛?/p>
1.娣誨姞鐢ㄦ埛錛堟湁涓ょ褰㈠紡錛夛細
A.mysql> grant all on *.* to yushan@"%" identified by "123" ;
mysql>flush privileges; (鍒鋒柊緋葷粺鏉冮檺琛?
(鎵ц瀹屼細鍦╩ysql.user琛ㄦ彃鍏ヤ竴鏉¤褰曪紝all琛ㄧず鎵鏈夋潈闄?鍖呮嫭澧?鍒?鏀?鏌ョ瓑鏉冮檺)錛?*.* 琛ㄧず鎵鏈夋暟鎹簱錛寉ushan涓烘坊鍔犵殑鐢ㄦ埛鍚嶏紝123涓哄瘑鐮?%涓哄尮閰嶇殑鎵鏈変富鏈猴紝涓婇潰鐨勪俊鎭兘鍙互鎸囧畾濡俫rant select,update on db.* to yushan@localhost identified by '123";)
B.鐩存帴瀵筸ysql.user娣誨姞涓鏉¤褰?/p>
mysql> insert into mysql.user(Host,User,Password) values("localhost","yusuhan",password("123"));
mysql>flush privileges;
榪欐牱灝卞垱寤轟簡涓涓悕涓猴細yushan 瀵嗙爜涓猴細123 (瀵嗙爜鏄粡榪囧姞瀵嗙殑 ) 鐨勭敤鎴鳳紝涓嶈繃榪欐牱娌℃湁鏉冮檺鍥犱負鍙坊鍔犱簡涓変釜瀛楁錛屼篃鍙氳繃grant娣?nbsp; 鍔犳潈闄愶細
mysql>grant all on *.* to yushan@localhost identified by '123";
mysql>flush privileges;(鍒鋒柊緋葷粺鏉冮檺琛?
錛堣繖縐嶅ソ鍍忔湁鐐瑰暟鍡︿簡銆傜洿鎺ョ敤grant涓嶄箙寰椾簡錛?/p>
娣誨姞瀹岀敤鎴?濡傛灉瑕佽繙紼嬬櫥鍏ySQL,蹇呴』璺熶笂涓繪満Ip 濡備笅錛?/p>
[root@localhost ~]# mysql -u yushan -p -h 192.168.59.123
Enter password:(杈撳叆瀵嗙爜)
2.鍒犻櫎鐢ㄦ埛 錛?/p>
mysql>delete from mysql.user where user ='yushan' ;
mysql>flush privileges; (鍒鋒柊緋葷粺鏉冮檺琛?
鍏朵粬鐢ㄦ埛鐨勫瘑鐮佷慨鏀逛笌root鐨勪竴鏍鳳紝鍦ㄨ繖閲屾棤璁烘槸娣誨姞鎴栨槸鍒犻櫎鎿嶄綔鍚庡繀欏繪潵涓?span style="color: #008000">flush privileges;榪欐牱鎵嶈兘璧蜂綔鐢ㄧ壒鍒槸鍒犻櫎鐢ㄦ埛鍚庯紝濡傛灉鏈墽琛岋紝琚垹闄ょ殑鐢ㄦ埛榪樺彲鐧誨叆錛屼互涓婇兘鏄湪MySQL root鐢ㄦ埛涓嬫搷浣滐紝涓轟簡MySQL鐨勫畨鍏紝搴旇緇欑敤鎴鋒寚瀹氱浉搴旂殑鏉冮檺
DROP PROCEDURE IF EXISTS `Sp_SendRequest`;
DELIMITER ;;
CREATE PROCEDURE Sp_SendRequest(
inRequestID Varchar(32),
inRequestTagID int(11),
inSendID varchar(30),
inOwnerID varchar(30)
)
BEGIN
set @days := 0;
set @timestamps := UNIX_TIMESTAMP();
select from_unixtime(@timestamps,'%d') into @days;
case @days
when 1 then insert into Tbl_FreeGift_01(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 2 then insert into Tbl_FreeGift_02(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 3 then insert into Tbl_FreeGift_03(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 4 then insert into Tbl_FreeGift_04(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 5 then insert into Tbl_FreeGift_05(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 6 then insert into Tbl_FreeGift_06(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 7 then insert into Tbl_FreeGift_07(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 8 then insert into Tbl_FreeGift_08(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 9 then insert into Tbl_FreeGift_09(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 10 then insert into Tbl_FreeGift_10(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 11 then insert into Tbl_FreeGift_11(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 12 then insert into Tbl_FreeGift_12(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 13 then insert into Tbl_FreeGift_13(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 14 then insert into Tbl_FreeGift_14(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 15 then insert into Tbl_FreeGift_15(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 16 then insert into Tbl_FreeGift_16(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 17 then insert into Tbl_FreeGift_17(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 18 then insert into Tbl_FreeGift_18(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 19 then insert into Tbl_FreeGift_19(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 20 then insert into Tbl_FreeGift_20(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 21 then insert into Tbl_FreeGift_21(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 22 then insert into Tbl_FreeGift_22(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 23 then insert into Tbl_FreeGift_23(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 24 then insert into Tbl_FreeGift_24(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 25 then insert into Tbl_FreeGift_25(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 26 then insert into Tbl_FreeGift_26(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 27 then insert into Tbl_FreeGift_27(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 28 then insert into Tbl_FreeGift_28(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 29 then insert into Tbl_FreeGift_29(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 30 then insert into Tbl_FreeGift_30(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
when 31 then insert into Tbl_FreeGift_31(RequestID,RequestTagID,SendID,OwnerID,StartTimeStamp) values(inRequestID,inRequestTagID,inSendID,inOwnerID,@timestamps);
end case;
END;;
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銆銆1. 绱㈠紩閫氬父鏄緗畐here瀛楀彞涓殑鍒楋紝濡傛灉浣犺緗畇elect鍚庣殑鍒楋紝榪欐槸娌℃湁浠諱綍鎰忎箟鐨勩傚綋鐒朵綘闇瑕佸鏌愬垪榪涜鎺掑簭錛宱rder by鍚庣殑鍒椾篃鏄彲浠ュ緩鎴愮儲寮曠殑銆?/p>
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銆銆3. 鍙鏈夊彲鑳斤紝灝辮灝介噺闄愬畾绱㈠紩鐨勯暱搴︼紝渚嬪绱㈠紩鍒椾負 char(100)錛屽湪鍏跺墠10涓瓧絎﹀ぇ閮ㄥ垎閮芥槸鍞竴鐨勶紝璇瘋緗儲寮曠殑闀垮害涓?0錛屼嬌鐢ㄧ煭绱㈠紩鍙互鍔犲揩鏌ヨ閫熷害錛屽茍鑺傜渷紜洏絀洪棿銆?/p>
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ALTER TABLE錛氭坊鍔狅紝淇敼錛屽垹闄よ〃鐨勫垪錛岀害鏉熺瓑琛ㄧ殑瀹氫箟銆?/p>
sp_rename錛歋QLServer 鍐呯疆鐨勫瓨鍌ㄨ繃紼嬶紝鐢ㄤ笌淇敼琛ㄧ殑瀹氫箟銆?/p>