1.mysql. 2.databasetable. 3.usergrant. 4.cnf. 6.Mysql. 9.mysqlNoSql. 10.MySQL MinDoc

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1 1.mysql databasetable 3.usergrant 4.cnf 5. 6.Mysql mysqlNoSql 10.MySQL - 1 -

2 1.mysql 1.mysql mysqlmysql mysql 1MySQL12:00 29drop 3binlog 1sqlCHANGE MASTERbinlogbinlog 2mysqlbinlogbinlogsqldrop 3binlogsql mysqlbinlog /etc/my.cnf[mysqld] log-bin=mysql-bin mysql 1opscustomers mysql> use ops; mysql> create table customers( -> id int not null auto_increment, -> name char(20) not null, -> age int not null, -> primary key(id) -> )engine=innodb; Query OK, 0 rows affected (0.09 sec) mysql> show tables; + -+ Tables_in_ops + -+ customers row in set (0.00 sec) mysql> desc customers; Field Type Null Key Default Extra id int(11) NO PRI NULL auto_increment name char(20) NO NULL age int(11) NO NULL rows in set (0.02 sec) mysql> insert into customers values(1, wangbo, 24 ); Query OK, 1 row affected (0.06 sec) mysql> insert into customers values(2, guohui, 22 ); - 2 -

3 1.mysql Query OK, 1 row affected (0.06 sec) mysql> insert into customers values(3, zhangheng, 27 ); Query OK, 1 row affected (0.09 sec) mysql> select * from customers; id name age wangbo 24 2 guohui 22 3 zhangheng rows in set (0.00 sec) 2 [root@vm-002 ~]# mysqldump -uroot -p -B -F -R -x master-data=2 ops gzip >/opt/backup/ops_$(date +%F).sql.gz Enter password: [root@vm-002 ~]# ls /opt/backup/ ops_ sql.gz -B -F -R -x master-datachange MASTERbinlog 3 mysql> insert into customers values(4, liupeng, 21 ); Query OK, 1 row affected (0.06 sec) mysql> insert into customers values(5, xiaoda, 31 ); Query OK, 1 row affected (0.07 sec) mysql> insert into customers values(6, fuaiai, 26 ); Query OK, 1 row affected (0.06 sec) mysql> select * from customers; id name age wangbo 24 2 guohui 22 3 zhangheng 27 4 liupeng 21 5 xiaoda 31 6 fuaiai rows in set (0.00 sec) 4test mysql> drop database ops; Query OK, 1 row affected (0.04 sec) binlog! (5)binlog - 3 -

4 1.mysql ~]# cd /opt/backup/ backup]# ls ops_ sql.gz backup]# gzip -d ops_ sql.gz backup]# ls ops_ sql backup]# grep CHANGE ops_ sql CHANGE MASTER TO MASTER_LOG_FILE= mysql-bin , MASTER_LOG_POS=106; binlog mysql-bin binlogsql 6binlogsqldrop mysql/var/lib/mysql backup]# ps -ef grep mysql root :43 pts/1 00:00:00 /bin/sh /usr/bin/mysqld_safe datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock pid-file=/var/run/mysqld/mysqld.pid basedir=/usr user=mysql mysql :43 pts/1 00:00:00 /usr/libexec/mysqld basedir=/usr datadir=/var/lib/mysql user=mysql log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid socket=/var/lib/mysql/mysql.sock [root@vm-002 backup]# cd /var/lib/mysql/ [root@vm-002 mysql]# ls ibdata1 ib_logfile0 ib_logfile1 mysql mysql-bin mysql-bin mysql-bin.index mysql.sock test [root@vm-002 mysql]# cp mysql-bin /opt/backup/ binlogsqlvimdrop [root@vm-002 backup]# mysqlbinlog -d ops mysql-bin >002bin.sql [root@vm-002 backup]# ls 002bin.sql mysql-bin ops_ sql [root@vm-002 backup]# vim 002bin.sql #drop binlogbinlog 7 [root@vm-002 backup]# mysql -uroot -p < ops_ sql Enter password: [root@vm-002 backup]# ops mysql> show databases; + + Database + + information_schema mysql ops test rows in set (0.00 sec) mysql> use ops; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select * from customers; id name age wangbo 0-4 -

5 1.mysql 2 guohui 0 3 zhangheng rows in set (0.00 sec) 002bin.sql [root@vm-002 backup]# mysql -uroot -p ops <002bin.sql Enter password: [root@vm-002 backup]# mysql> select * from customers; id name age wangbo 24 2 guohui 22 3 zhangheng 27 4 liupeng 21 5 xiaoda 31 6 fuaiai rows in set (0.00 sec) mysql 1SQL 2mysqlbinlog 3 4SQLSQL - 5 -

6 databasetable databasetable CREATE DATABASE `test_db` DEFAULT CHARACTER SET utf8mb4 3. COLLATE utf8mb4_unicode_ci; 1. DROP TABLE IF EXISTS test_table; CREATE TABLE test_table ( 3. tableid BIGINT(20) NOT NULL AUTO_INCREMENT, 4. name varchar(500) NOT NULL DEFAULT '0', 5. blance BIGINT(20) NOT NULL DEFAULT '0', 6. lastupdate TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP 7. ON UPDATE CURRENT_TIMESTAMP, 8. PRIMARY KEY (tableid), 9. KEY idx_type_serial (name) 10. ) 11. ENGINE = InnoDB 1 AUTO_INCREMENT = DEFAULT CHARSET = utf8mb4 14. COLLATE = utf8mb4_unicode_ci; ALTER TABLE fa_store_goods CHANGE last_update last_update time 1. alter table component_review modify column nick_name varchar(3-6 -

7 3.usergrant 3.usergrant GRANT ALL ON *.* TO WITH MAX_USER_CONNECTION 1. grant all privileges on online_markdown_doc_db.* to id 1. CREATE DATABASE `payment_prod` DEFAULT CHARACTER SET utf8mb4 3. COLLATE utf8mb4_unicode_ci; GRANT ALL PRIVILEGES ON payment_prod.* TO 7. IDENTIFIED BY 'canhu_db2018' 8. WITH MAX_USER_CONNECTIONS GRANT OPTION; 1. CREATE DATABASE `teamcity` DEFAULT CHARACTER SET utf8mb4 3. COLLATE utf8mb4_unicode_ci; CREATE USER IDENTIFIED BY 'teamcity.teamcity'; grant all privileges on teamcity.* to with gran grant replication slave on *.* to identified by ' CREATE DATABASE yidao_prod DEFAULT CHARACTER SET utf8mb4 COLLA CREATE DATABASE payment_prod DEFAULT CHARACTER SET utf8mb4 COL grant all privileges on yidao_prod.* to identif 5. grant all privileges on payment_prod.* to ide GRANT ALL PRIVILEGES ON jumax_payment.* TO 8. IDENTIFIED BY 'pwd.payment' 9. WITH MAX_USER_CONNECTIONS GRANT OPTION; - 7 -

8 3.usergrant Mysql-57 1., 1. CREATE USER IDENTIFIED BY 'password'; 1. RENAME USER TO 1. CREATE USER WITH MAX_QUERIES_PER_HOUR 500 MAX_UPDATES_PER_HOUR 100; 1. CREATE USER PASSWORD EXPIRE NEVER; 1. CREATE USER IDENTIFIED BY 'new_password' PASSWORD EXPIRE; 1. CREATE USER IDENTIFIED WITH sha256_password BY 'new_password' 3. PASSWORD EXPIRE INTERVAL 180 DAY; 1. ALTER USER ACCOUNT LOCK; ALTER USER ACCOUNT UNLOCK; SET PASSWORD FOR = 'auth_string'; ALTER USER WITH MAX_QUERIES_PER_HOUR 500 MAX_UPDATES_PER_HOUR 100; DROP USER GRANT priv_type [(column_list)] 3. [, priv_type [(column_list)]] ON [object_type] priv_level 5. TO user [auth_option] [, user [auth_option]] [REQUIRE {NONE tls_option [[AND] tls_option]...}] 7. [WITH {GRANT OPTION resource_option}...] GRANT PROXY ON user 10. TO user [, user] [WITH GRANT OPTION] object_type: { 14. TABLE 15. FUNCTION 16. PROCEDURE - 8 -

9 3.usergrant 17. } priv_level: { 20. * 21. *.* 2 db_name.* 23. db_name.tbl_name 24. tbl_name 25. db_name.routine_name 26. } user: 29. (see Section 6.3, Specifying Account Names ) auth_option: { 3 IDENTIFIED BY 'auth_string' 33. IDENTIFIED WITH auth_plugin 34. IDENTIFIED WITH auth_plugin BY 'auth_string' 35. IDENTIFIED WITH auth_plugin AS 'hash_string' 36. IDENTIFIED BY PASSWORD 'hash_string' 37. } tls_option: { 40. SSL 41. X509 4 CIPHER 'cipher' 43. ISSUER 'issuer' 44. SUBJECT 'subject' 45. } resource_option: { 48. MAX_QUERIES_PER_HOUR count 49. MAX_UPDATES_PER_HOUR count 50. MAX_CONNECTIONS_PER_HOUR count 51. MAX_USER_CONNECTIONS count 5 } REVOKE priv_type [(column_list)] 3. [, priv_type [(column_list)]] ON [object_type] priv_level 5. FROM user [, user] REVOKE ALL [PRIVILEGES], GRANT OPTION 8. FROM user [, user] REVOKE PROXY ON user 11. FROM user [, user]

10 3.usergrant

11 4.cnf 4.cnf MySQL-57-my.cnf- 1. [client] default-character-set = utf8mb4 3. password= [mysql] 6. default-character-set = utf8mb [mysqld] 9. character-set-client-handshake = FALSE 10. character-set-server = utf8mb4 11. collation-server = utf8mb4_unicode_ci 1 init_connect='set NAMES utf8mb4' innodb_buffer_pool_size = 256M log-bin = mysql-bin 18. server-id = slow-query-log-file = /var/log/mysql/mysqld-slow.log 21. slow_query_log = on 2 long_query_time = max_connections = symbolic-links= datadir=/var/lib/mysql 29. socket=/var/lib/mysql/mysql.sock 30. pid-file=/var/run/mysqld/mysqld.pid 31. log-error=/var/log/mysql/mysqld.log sql_mode=no_engine_substitution,strict_trans_tables,no_auto_cr explicit_defaults_for_timestamp = true

12 5. 5. Mysql- MySql- DB 1.log-bin log-bin,slave server-id db 1. [mysqld] log-bin = mysql-bin 3. server-id = 1 masterslave grant replication slave on *.* to slave_01@'%' identified by ' mastermysql-bin ,masterlog-bin 1. mysql> show master status;

13 5. 3. File Position Binlog_Do_DB Binlog_Ignore_D mysql-bin master 1. CHANGE MASTER TO MASTER_HOST='prod-01.openread.cn', 3. MASTER_PORT=10000, 4. MASTER_USER='slave_01', 5. MASTER_PASSWORD='Aa******', 6. MASTER_LOG_FILE='mysql-bin ', 7. MASTER_LOG_POS =734; start slave; 5.() Slave_IO_State: Waiting for master to send event Slave_IO_Running: Yes Slave_SQL_Running: Yes 1. mysql> show slave status \G; *************************** 1. row ************************* 3. Slave_IO_State: Waiting for master to send ev 4. Master_Host: prod-01.openread.cn 5. Master_User: slave_01 6. Master_Port: Connect_Retry: Master_Log_File: mysql-bin Read_Master_Log_Pos: Relay_Log_File: 6be33b37f96f-relay-bin Relay_Log_Pos: Relay_Master_Log_File: mysql-bin Slave_IO_Running: Yes 14. Slave_SQL_Running: Yes 15. Replicate_Do_DB: 16. Replicate_Ignore_DB: 17. Replicate_Do_Table: 18. Replicate_Ignore_Table: 19. Replicate_Wild_Do_Table: 20. Replicate_Wild_Ignore_Table: 21. Last_Errno: 0 2 Last_Error: 23. Skip_Counter: Exec_Master_Log_Pos: Relay_Log_Space: Until_Condition: None 27. Until_Log_File: 28. Until_Log_Pos: Master_SSL_Allowed: No 30. Master_SSL_CA_File:

14 Master_SSL_CA_Path: 3 Master_SSL_Cert: 33. Master_SSL_Cipher: 34. Master_SSL_Key: 35. Seconds_Behind_Master: Master_SSL_Verify_Server_Cert: No 37. Last_IO_Errno: Last_IO_Error: 39. Last_SQL_Errno: Last_SQL_Error: 41. Replicate_Ignore_Server_Ids: 4 Master_Server_Id: Master_UUID: a1a46fb7-e1b3-11e a 44. Master_Info_File: /var/lib/mysql/master.info 45. SQL_Delay: SQL_Remaining_Delay: NULL 47. Slave_SQL_Running_State: Slave has read all relay log; 48. Master_Retry_Count: Master_Bind: 50. Last_IO_Error_Timestamp: 51. Last_SQL_Error_Timestamp: 5 Master_SSL_Crl: 53. Master_SSL_Crlpath: 54. Retrieved_Gtid_Set: 55. Executed_Gtid_Set: 56. Auto_Position: Replicate_Rewrite_DB: 58. Channel_Name: 59. Master_TLS_Version,master(,,)slave250,. 1. # masterstop SLAVE; reset slave; 3. # 4. STOP SLAVE; 5. # relay log, 6. show variables like '%relay log,%' ; 1. # binlog show binlog events IN 'mysql-bin ' FROM 448 LIMIT 0,30; 1. show slave status; 3. yes 4. Slave_IO_Running: Yes

15 5. 5. Slave_SQL_Running: Yes Slave_SQL_Running No Last_Error sql start slave ; STOP SLAVE show binlog events IN 'mysql-bin ' FROM 448 LIMIT 0,30; DROP USER 'web_manager'@'%';

16 6.Mysql 6.Mysql Mysql A.sql,1, 1. mysqldump -uroot -padmin -hlocalhost -P3306 db_name > db.sql 1. mysqldump --verbose --default-character-set=utf8mb4 --port 3. win /mysqldump.exe -uroot -paa hprod-01.openread.cn -P2 3.,root 1. [fashion@test-01 ~]$ mysqldump -help Usage: mysqldump [OPTIONS] database [tables] 3. OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3. 4. OR mysqldump [OPTIONS] --all-databases [OPTIONS] A. mysql source mysqlmysqlimport source mysql 1. ``` use db; source /root/a,sql 5. ``` B. C. mysql 1. mysql -v -uroot -padmin test < /root/home.sql mysqlimport /root/home.sqltesthome. 1. mysqlimport --verbose --default-character-set=utf8mb4 --p

17 6.Mysql txt

18 7. 7. Mysql select `USER`,COUNT(`USER`) AS CNT from information_schema.pro 1. GRANT USAGE ON *.* TO WITH MAX_USER_CONNECTIONS show variables like "max_connections"; 3. set GLOBAL max_connections=1000; show global status like 'Max_used_connections'

19 #!/bin/bash 3. #A global transaction identifier (GTID) is a unique identifier 4. # 5. # 6. #--set-gtid-purged=off gtid-mode=off 7. #!/bin/bash 8. echo "start" 9. if [ $# -ne 2 ]; then 10. echo ": sh $0 <> <sql>" 11. echo "'<' '>' " 1 exit fi 14. echo " :" $1 15. echo " : /home/joker/docker-image/mysql/backup/" $2 16. echo "..." 17. docker run -it \ 18. -e HOST="local_mysql" \ 19. -e PORT="3306" \ 20. -e USER="root" \ 21. -e DB=$1 \ 2 -e BACK_FILE="/root/backup/"$2 \ 23. -v /home/joker/docker-image/mysql/backup:/root/backup \ link local_mysql:local_mysql \ net joker-network \ rm mysql:5.7 \ 27. sh -c 'exec mysqldump --default-character-set=utf8 -h${ho 1. #!/bin/bash 3. # backup_time=`date +%Y%m%d_%H` echo "======================================================== 7. echo " -joker_prod,,:" ${backup_time} 8. echo "======================================================== # 11. /home/joker/script/mysql-backup.sh joker_prod joker_prod-${bac # scp /home/joker/docker-image/mysql/backup/joker_prod-${backup_ #

20 # crontab -e 18. # nohup /home/joker/script/auto_send_backup-sql_to_test.sh > / 1. #!/bin/bash -x 3. # backup_time=`date +%Y%m%d_%H` echo "======================================================== 7. echo ",:" ${backup_time} 8. echo "======================================================== sql_file=joker_prod-${backup_time}.sql # 13. mysql -v -ujoker -p`cat /home/joker/script/joker_db_pwd` joker

21 9.mysqlNoSql 9.mysqlNoSql Mysql5.7NoSql 1.: 1. create database test default character set utf8mb4; use test; CREATE TABLE `user` ( 7. `uid` int(11) NOT NULL AUTO_INCREMENT, 8. `info` json DEFAULT NULL, #descjson 9. PRIMARY KEY (`uid`) 10. ) 11. ENGINE = InnoDB 1 AUTO_INCREMENT = DEFAULT CHARSET = utf8mb4; INSERT INTO `user` (`uid`, `info`) VALUES (1, '{ 16. \"mail\": \"jiangchengyao@gmail.com\", 17. \"name\": \"David\", 18. \"address\": \"Shangahai\" 19. }'), (2, '{ 20. \"mail\": \"amy@gmail.com\", 21. \"name\": \"Amy\" 2 }'); # SELECT uid,json_extract(info,'$.mail') AS 'mail',json_extract( # SELECT JSON_ARRAYAGG(`info`) AS `keys` FROM user; SELECT JSON_OBJECTAGG(`uid`, info) AS `key_val` FROM user; json, 1. # (mail) ALTER TABLE user ADD name_virtual varchar (32) GENERATED ALW # (mail) 5. CREATE INDEX name_virtual_index ON user(name_virtual); # (age) 9. ALTER TABLE user ADD virtual_age int(11) GENERATED ALWAYS A

22 9.mysqlNoSql 11. # (age) 1 CREATE INDEX virtual_age_index ON user(virtual_age); explain select * from user where name_virtual like '%ji%'; # 17. explain select * from user where (json_extract(info, '$.age' explain select * 20. from user where uid=1;

23 10.MySQL 10.MySQL MySQL ACID 1Atomicity 2Consistency ABAB 3IsolationAAB 4Durability 1ABBA 2 A B AA 3AABCDEBA MySQL read-uncommitted read-committed repeatable-read serializable 1. InnoDB SQL 1992 READ UNCOMMITTED READ COMMIT show variables like '%%'; 1.session 1. set session transaction isolation level read uncommitted;

24 10.MySQL REPEATABLE-READ REPEATABLE-READ set AUTOCOMMIT=on off; 3. show variables like 'autocommit'; 1. # 1. CREATE DATABASE IF NOT EXISTS `test_db` DEFAULT CHARACTER SET # 5. CREATE TABLE IF NOT EXISTS test_table ( 6. tableid BIGINT(20) NOT NULL AUTO_INCREMENT, 7. name varchar(500) NOT NULL DEFAULT '0', 8. blance BIGINT(20) NOT NULL DEFAULT '0', 9. lastupdate TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP 10. ON UPDATE CURRENT_TIMESTAMP, 11. PRIMARY KEY (tableid), 1 KEY idx_type_serial (name) 13. ) 14. ENGINE = InnoDB 15. AUTO_INCREMENT = DEFAULT CHARSET = utf8mb4 17. COLLATE = utf8mb4_unicode_ci; # INSERT INTO test_db.test_table (name, blance, lastupdate) VALU 21. INSERT INTO test_db.test_table (name, blance, lastupdate) VALU 2 INSERT INTO test_db.test_table (name, blance, lastupdate) VALU 23. INSERT INTO test_db.test_table (name, blance, lastupdate) VALU 1. READ-UNCOMMITTED mysql> select * from test_table; tableid name blance lastupdate simon :46: mary :46: lisa :46: john :46: rows in set (0.00 sec) 1.A,session[READ-UNCOMMITTED]

25 10.MySQL 1. start transaction ; update test_table set blance=blance+50 where tableid=10000; # ID= mysql> select * from test_table; tableid name blance lastupdate simon :46: mary :46: lisa :46: john :46: rows in set (0.00 sec) B,session[READ-UNCOMMITTED] 1. # ID= A mysql> select * from test_table; tableid name blance lastupdate simon :46: mary :46: lisa :46: john :46: rows in set (0.00 sec) : [READ-UNCOMMITTED] 3.A 1. start transaction; update test_table set blance=blance+50 where tableid=10000; READ-COMMITTED 4.B,session[READ-COMMITTED] 1. # select * from test_table; A select * from test_table; 5.Acommit; 1. # commit;b commit;,b 3. REPEATABLE-READ 1.A 1. set session transaction isolation level REPEATABLE read;

26 10.MySQL 3. mysql> select * from test_table; tableid name blance lastupdate simon :57: mary :46: lisa :46: john :46: rows in set (0.00 sec) start transaction; 15. update test_table set blance=blance+50 where tableid=10000; B,AB 1. set session transaction isolation level REPEATABLE read; 3. #,,A 4. start transaction; 5. update test_table set blance=blance+50 where tableid=10000; # A,B : REPEATABLE-READ,, : serializable, 1SQL 2mysql Read Committed