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Tags: mysqlMySQL Study--mysql Ordinary users cannot log on locally After the installation has completed MySQL, we usually add a regular user with the appropriate permissions to access the database. When using the user to log in to the database, often there is how to log in and cannot log in, but from other MySQL client can log on. failure Phenomena: [email protected] ~]# mysql-u root-poracle Welcome to the MySQL Monitor. Commands End With; or \g. Your MySQL Connection ID is Server version:5

,b.name2 from dba_extents A,v$datafile b3 where a.file_id=b.file# and a.owner= ' SCOTT ' and a.segment_name= ' TEST ';file_id block_id BLOCKS NAME---------- ---------- ---------- ---------------------------------------------4 520 8/U01/APP/ORACLE/ORADATA/ORCL/USERS01.DBF---The block where the record in the table is found[Email protected]>select distinct dbms_rowid.rowid_block_number (ROWID) from Scott.test;Dbms_rowid. Rowid_block_number (ROWID)------------------------------------523524---Destroy

Administrator cmd　Kill the MySQL process and start the serviceStart and stop the MySQL serviceLogin Settings PasswordC:\windows\system32>mysqlwelcome to the MySQL Monitor. Commands End With; or \g.your MySQL connection ID is 1Server version:5.6.41 mysql Community Server (GPL) Copyright (c) #, 2018, Oracle and /or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names trademarks of

Connection Idis 2Server Version:5.5.29-log MySQL Community Server (GPL)Copyright (c), 2012,oracle and/or its affiliates. All rights reserved.Oracle is a registeredtrademark of the Oracle Corporation and/or its affiliates. Other names Betrademarks of their respective owners.Type ' help; ' or ' \h ' forhelp. Type ' \c ' to clear the current input statement.Mysql> quitBye* The mysql> command prompt appears, y

/or its affiliates. all rights reserved. connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0-64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsEXP-0004 4: must be connected 'as sysdba' to do Point-in-time Recovery or Transportable Tablespace importEXP-00000: Export terminated unsuccessfully 2) Export successful suse11sp2: ~> Exp \ 'sys/its7888 $ as sysdba \ 'tablespaces = aaa file =/tmp/aa

/mysql, and bin log and error log are also stored here by default. II. install the MySQL client Because MySQL of 5.5.39 has been installed before, if the 5.0.96 client is not installed and the original client can be directly used, the 5.5.39 client is used to connect to the 5.0.96 server. [Root @ bak ~] # MysqlWelcome to the MySQL monitor. Commands end with; or \ g. Your MySQL connection id is 1 Server version: 5.0.96-community-log MySQL Community Edition (GPL) Copyright (c) 2000,201 4, Oracle

)---------------------------------------------------------------------......COMPRESSION Reduce size of dumpfile contents where validKeyword values are: (METADATA_ONLY) and NONE.......The COMPRESSION parameter in 10 Gb only provides the METADATA_ONLY and NONE options, and basically does not provide the COMPRESSION function. 3. Use the four Compression Parameters of the 11g EXPDP tool to generate four dump files respectively.1) Use the ALL ParameterSecooler @ secDB/expdp $ expdp sec/sec dumpfile =

! - Removing privileges on test database... ... Success!Reloading the privilege tables will ensure that all changes made so farwill take effect immediately.# reload privilege tablesReload privilege tables now? [Y/n] y ... Success!Cleaning up...All done! If you've completed all of the above steps, your MySQLinstallation should now be secure.Thanks for using MySQL! [root@linuxprobe ~]# mysql -u root -pEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id

Basic Mysql user operationsCreate a user: mysql> create user 'cai'@'localhost' identified by '123456';Query OK, 0 rows affected (0.00 sec)mysql> select user,host from mysql.user; +---------------+-----------+| user | host |+---------------+-----------+| cai | localhost || mysql.session | localhost || mysql.sys | localhost || root | localhost || wordpress | localhost |+---------------+-----------+5

Mysql prompt is a very useful command. You may be very worried about the database you are operating on when you operate mysql through the command line. At least I have struggled with it, maybe you will say that I don't know if I just run a command. Yes, this is indeed acceptable. But today I will introduce you to a useful command-prompt [html] [root @ fsailing1 ~] # Mysql-uroot-p -- prompt = "\ u @ \ h: \ d \ r: \ m: \ s>" Enter password: welcome to the MySQL monitor. commands end with; or \ g.

Logon password is required. Welcome to the MySQL monitor. Commands end with; or g. Your MySQL connection id is 1 Server version: 5.6.13 Source distribution Copyright (c) 2000,201 3, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its Affiliates. Other names may be trademarks of their respective Owners. Type 'help; 'or 'H' for help. Type 'C' t

is used to connect to the 5.0.96 server.[Root @ bak ~] # MysqlWelcome to the MySQL monitor. Commands end with; or \ g. Your MySQL connection id is 1 Server version: 5.0.96-community-log MySQL Community Edition (GPL)Copyright (c) 2000,201 4, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help; 'or' \ H' for help

] #./mysql_install_db -- user = mysql -- basedir =/usr/local/mysql -- datadir =/usr/local/mysql/data [Root @ localhost bin] # cd/usr/local/mysql/bin [Root @ localhost bin] #./mysqld_safe -- user = root [1] 28869 [Root @ localhost bin] #131016 20:07:13 mysqld_safe Logging to '/usr/local/mysql/data/localhost. localdomain. err '. 131016 20:07:14 mysqld_safe Starting mysqld daemon with databases from/usr/local/mysql/data Check whether the service is successfully started. [Root @ localhost b

the database 3. Enter the database with an empty password (Press enter after mysql Command) [Root @ mysql ~] # Mysql Welcome to the MySQL monitor. Commands end with; or \ g. Your MySQL connection id is 3 Server version: 5.6.20-enterprise-commercial cial-advanced MySQL Enterprise Server-Advanced Edition (Commercial cial) Copyright (c) 2000,201 4, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation

mha architecture on the MySQL5.5 platform, therefore, this article records how to build a master-slave Database Replication environment on the MySQL5.5 platform. In addition, MySQL's master-slave database can also be seen as MySQL's real-time backup, which has certain data disaster recovery functions, mySQL itself does not provide a hot backup tool similar to oracle rman. Therefore, in most scenarios, a real-time backup is performed on the database using the master and slave nodes for backup fr

password: [root@localhost ~]# Service mysqld start Starting MySQL ... ........... ..... success! [root@localhost ~]# MySQL # #注意, no login password is needed here. Welcome to the MySQL Monitor. Commands End With; or G. Your MySQL Connection ID is 1 Server version:5.6.13 Source Distribution Copyright (c), 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark the Oracle Corporation and/or its

sec) mysql> deletes from Test_innodb where id=3; Query OK, 1 row affected (0.05 sec) mysql> insert into TEST_INNODB (name) select ' d '; Query OK, 1 row affected (0.20 sec) records:1 duplicates:0 warnings:0 mysql> select * from Test_innodb; +----+------+ | ID | name | +----+------+ | 1 | A | | 2 | B | | 4 | D | +----+------+ 3 rows in Set (0.00 sec) mysql> exit Bye [2@a data]$ Mysql-uroot-pwsdad to the MySQL monitor. Commands End With; or \g. Your MySQL Connection ID is 5 Server version:5.5.37-

' mysql.gtid_executed ' cannot be opened. 2016-06-21t14:07:23.355716z 1 [note] A temporary password are generated for root@ LOCALHOST:RR9.8H74TWFR WINX64\BINGT;MYSQL-UROOT-PRR9.8H74TWFR MySQL: [Warning] Using a password on the command line interface can insecure. ERROR 2003 (HY000): Can ' t connect to MySQL server on ' localhost ' (10061) c:\mysql-5.7.13-winx64\bin>net start MySQL M The Ysql service is starting. The MySQL service has started successfully. C:\MYSQL-5.7.13-WINX64\BINGT;MYSQL-U

Use mysql5.5, suddenly the root password forget, how can not login, very urgent people, how to solve it? The following through this article to introduce mysql5.5 forget root password solution, the need for friends to refer to the next bar Method One: Operating system: Windows operating system, XP or Win7. C:\USERS\ADMINISTRATOR>CD C:\Program files\mysql\mysql Server 5.5\binC:\Program files\mysql\mysql Server 5.5\bin>net Stop MySQL The MySQL service is stopping. The MySQL service has stopped

command line interface can is insecure. Welcome to the MySQL Monitor. Commands End With; or \g. Your MySQL Connection ID is 6 Server version:5.7.18 Copyright (c) $, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of the Oracle Corporation and/or its affiliates. Other names trademarks of their respective owners. Type ' help ', ' or ' \h ' for help. Type ' \c ' to clear