MySQL commands: Difference between revisions

From LemonWiki共筆
Jump to navigation Jump to search
Line 104: Line 104:


=== Troubleshooting of MySQL errors ===
=== Troubleshooting of MySQL errors ===
==== command not found: mysqldump ====
[[Troubleshooting of MySQL errors]]
# locate the mysqldump command
#* {{kbd | key=<nowiki>sudo find / -iname mysqldump</nowiki>}} for {{Mac}} or {{Linux}}
#* If you installed
#** [https://www.apachefriends.org/index.html XAMPP] for {{Mac}}: Entire path is {{kbd | key=<nowiki>/Applications/XAMPP/xamppfiles/bin/mysqldump</nowiki>}}
#** [https://www.apachefriends.org/index.html XAMPP] on X disk for {{Win}}: Entire path is {{kbd | key=<nowiki>X:\xampp\mysql\bin\mysqldump.exe</nowiki>}}
#** [https://www.mamp.info/en/ MAMP & MAMP PRO] for {{Mac}}: Entire path is {{kbd | key=<nowiki>/Applications/MAMP/Library/bin/mysqldump</nowiki>}}
# input the complete path of mysqldump command
#* old command which caused error {{kbd | key=<nowiki>mysqldump -h 127.0.0.1 -u root -p  --force --single-transaction DATABASE_NAME | pv | gzip -c > DATABASE_NAME.sql.gz</nowiki>}}
#* new command {{kbd | key=<nowiki>/Applications/XAMPP/xamppfiles/bin/mysqldump -h 127.0.0.1 -u root -p  --force --single-transaction DATABASE_NAME | pv | gzip -c > DATABASE_NAME.sql.gz</nowiki>}}
 
==== could not access the mysql log ====
Version: XAMPP 5.6.15-1 on {{Mac}}
 
Cause:
* the error log only be accessed by the mysql user
 
Solution <ref>[http://computerplumber.com/2009/01/using-the-chmod-command-effectively/ Using the CHMOD command effectively @ Computer Plumber]</ref>:
<pre>
find the path to the mysql log
$ ls /Applications/XAMPP/xamppfiles/var/mysql/*.local.err
 
find the file name of mysql log ex: XXXMacBook-Pro.local.err
 
set the permission of log
$ sudo chmod 774 /Applications/XAMPP/xamppfiles/var/mysql/XXXMacBook-Pro.local.err
</pre>
 
==== could not open single-table tablespace file filename.ibd ====
Version: XAMPP 5.6.15-1 on {{Mac}}
 
Condition: The Mac was shutdown accidentally and the database was not shutdown normally. After reboot the Mac, unable to start the MySQL service<ref>[http://stackoverflow.com/questions/35184367/error-could-not-open-single-table-tablespace-file-scrapers-records-ibd mysql - Error: could not open single-table tablespace file .\scrapers\records.ibd - Stack Overflow]</ref><ref>[http://chepri.com/our-blog/mysql-innodb-corruption-and-recovery/ MySQL Won't Start - InnoDB Corruption and Recovery. - Chepri]</ref>.
 
Possible solution:
# Edit the MySQL configuration file located: /Applications/XAMPP/xamppfiles/etc/my.cnf
# Add this line: {{kbd | key=<nowiki>innodb_force_recovery = 1</nowiki>}}
# Try to start the MySQL service
# If the MySQL service started successfully, edit the MySQL configuration file and mark this line : {{kbd | key=<nowiki>#innodb_force_recovery = 1</nowiki>}}
# Restart the MySQL service
 
==== Caught exception: SQLSTATE[HY093]: Invalid parameter number: parameter was not defined ====
Solutions
* Number of question marks is not matched with the number of query values <ref>[https://stackoverflow.com/questions/10966251/sqlstatehy093-invalid-parameter-number-parameter-was-not-defined php Invalid parameter number: parameter was not defined - Stack Overflow]</ref>
* The array of query values should not be the associative array. Use sequential array!
 
==== ERROR 1005 (HY000) at line xx: Can't create table 'TABLE_NAME' (errno: 28) ====
 
Solutions
* Check if the disk space where mysql data folder located is enough. e.g. Input {{kbd | key=df -h}} on {{Linux}}
* More on [http://stackoverflow.com/questions/11045279/error-1005-hy000-cant-create-table-errno-150 mysql - ERROR 1005 (HY000): Can't create table (errno: 150) - Stack Overflow].
 
==== ERROR 1006 (HY000): Can't create database 'DATABASE_NAME' (errno: 28) ====
Solutions
* Check if the disk space where mysql data folder located is enough. e.g. Input {{kbd | key=df -h}} on {{Linux}}
* More on [http://stackoverflow.com/questions/18719748/error-1006-hy000-cant-create-database-errno-13-mysql-5-6-12 ERROR 1006 (HY000) Can't create database (errno: 13) MySQL 5.6.12 - Stack Overflow].
 
==== ERROR 1017 - Can't find file: '.\DATABASE\TABLE.frm' (errno: 22 - Invalid argument) ====
Message: [Err] 1017 - Can't find file: '.\DATABASE\TABLE.frm' (errno: 22 - Invalid argument)
 
 
Solutions
* Check the existence of file DATABASE\TABLE.frm. If not, you may need to create the TABLE before executed the MySQL query.
* Check the permission of file DATABASE\TABLE.frm or folder which the file located<ref>[http://stackoverflow.com/questions/12106727/mysql-copying-tables-files-gives-rise-to-error-1017-hy000-cant-find-file MySQL, copying tables files gives rise to "ERROR 1017 (HY000): Can't find file:" even though its there there - Stack Overflow]</ref><ref>[https://www.percona.com/forums/questions-discussions/mysql-and-percona-server/2762-error-1017-hy000-can-t-find-file ERROR 1017 (HY000): Can't find file - Percona Community]</ref>. ''unverified''
 
==== ERROR 1044 (42000): Access denied for user 'USER'@'localhost' to database 'DATABASE_NAME' ====
Message:
<pre>
pv file.sql.gz | gunzip | mysql -u USER -p --host=127.0.0.1 --default_character_set utf8 DATABASE_NAME
ERROR 1044 (42000): Access denied for user 'USER'@'localhost' to database 'DATABASE_NAME'
</pre>
 
Solution:
* Check the permission of specified user name & database name
<pre>
$ mysql -u USER -p --host=127.0.0.1
Enter password:
 
mysql> use DATABASE_NAME
</pre>
 
==== ERROR 1045 (28000): Access denied for user 'user'@'localhost' (using password: YES) ====
Solution:
* Check the typo of user name.
* Check the typo of password.
* If you are using the console command, escape the password if it contains special characters e.g. {{kbd | key=<nowiki>mysql -u root -p'PASSWORD'</nowiki>}}<ref>[http://superuser.com/questions/123928/escaping-a-password-using-mysqldump-console escape characters - Escaping a password using mysqldump console - Super User]</ref>
* You may need to delete the existing account setting and re-config again.
 
==== ERROR 1054 - Unknown column in 'where clause' ====
Message: [Err] 1054 - Unknown column 'xxx' in 'where clause'
 
Solution:
# check the column name 'xxx' if exists
# if the column name 'xxx' was computed by the [http://dev.mysql.com/doc/refman/5.7/en/example-user-variables.html User-Defined Variables]. Enclosed the whole query into another parent derived query.
<pre>
-- The query which met the error message: [Err] 1054 - Unknown column 'rank' in 'where clause'
SELECT semi.*, IF(semi.id = semi.prev, @rank := @rank +1, @rank := 1 ) AS `rank` 
FROM
(
        ...
) semi
WHERE semi.rank <= 10
</pre>
 
Enclosed the whole query into another parent derived query.
<pre>
SELECT final.*
FROM
(
        SELECT semi.*, IF(semi.id = semi.prev, @rank := @rank +1, @rank := 1 ) AS `rank` 
        FROM
        (
                ...
        ) semi
) final
WHERE final.rank <= 10
</pre>
 
==== ERROR 1690 - BIGINT UNSIGNED value is out of range ====
Message: MySQL error #1690 (BIGINT UNSIGNED value is out of range)
 
Solution <ref>[https://dev.mysql.com/doc/refman/8.0/en/out-of-range-and-overflow.html MySQL :: MySQL 8.0 Reference Manual :: 11.2.6 Out-of-Range and Overflow Handling]</ref><ref>[https://stackoverflow.com/questions/34115917/mysql-error-1690-bigint-unsigned-value-is-out-of-range-for-unix-timestamp MySQL error #1690 (BIGINT UNSIGNED value is out of range) for UNIX_TIMESTAMP() - Stack Overflow]</ref>:
<pre>
SET sql_mode = 'NO_UNSIGNED_SUBTRACTION';
</pre>
 
==== ERROR 1114 (HY000): The table `TABLE_NAME` is full ====
Possible solution
* Because the partition is full or almost full, free some hard-disk space<ref>[http://stackoverflow.com/questions/730579/error-1114-hy000-the-table-is-full mysql - ERROR 1114 (HY000): The table is full - Stack Overflow]</ref>.
 
==== ERROR 1205: Lock wait timeout exceeded; try restarting transaction ====
Solution: <ref>[https://stackoverflow.com/questions/5836623/getting-lock-wait-timeout-exceeded-try-restarting-transaction-even-though-im mysql - Getting "Lock wait timeout exceeded; try restarting transaction" even though I'm not using a transaction - Stack Overflow]</ref>
# {{kbd | key=<nowiki>SHOW OPEN TABLES WHERE in_use > 0;</nowiki>}}<ref>[https://dev.mysql.com/doc/refman/5.7/en/show-open-tables.html MySQL :: MySQL 5.7 Reference Manual :: 13.7.5.24 SHOW OPEN TABLES Syntax]</ref>
# {{kbd | key=<nowiki>SHOW [FULL] PROCESSLIST;</nowiki>}}<ref>[https://dev.mysql.com/doc/refman/5.7/en/show-processlist.html MySQL :: MySQL 5.7 Reference Manual :: 13.7.5.29 SHOW PROCESSLIST Syntax]</ref>
# {{kbd | key=<nowiki>KILL <process id>;</nowiki>}}<ref>[https://dev.mysql.com/doc/refman/5.7/en/kill.html MySQL :: MySQL 5.7 Reference Manual :: 13.7.6.4 KILL Syntax]</ref>
 
==== ERROR 1206: The total number of locks exceeds the lock table size ====
Message: Error Code: 1206. The total number of locks exceeds the lock table size
 
Solution: Increase {{kbd | key = innodb_buffer_pool_size}} e.g. [http://stackoverflow.com/questions/5696857/how-to-change-value-for-innodb-buffer-pool-size-in-mysql-on-mac-os innodb - How to change value for innodb_buffer_pool_size in MySQL on Mac OS? - Stack Overflow].
 
==== ERROR 1827 (HY000): The password hash doesn't have the expected format. Check if the correct password algorithm is being used with the PASSWORD() function. ====
Wrong sql query as follows:
<pre>
CREATE USER 'test'@'localhost' IDENTIFIED BY PASSWORD 'my_password';
</pre>
 
Solution:
(1) Check if the account was created or not
<pre>
SELECT User,Host FROM mysql.user;
</pre>
 
(2a) If the account was created, set the password for the account.
<pre>
SET PASSWORD FOR 'test'@'localhost' = PASSWORD('my_password');
</pre>
 
(2b) If the account was NOT created, re-create the account.
<pre>
CREATE USER 'test'@'localhost' IDENTIFIED BY 'my_password';
</pre>
 
references
* [http://dev.mysql.com/doc/refman/5.7/en/create-user.html MySQL :: MySQL 5.7 Reference Manual :: 14.7.1.2 CREATE USER Syntax]
* [http://dev.mysql.com/doc/refman/5.7/en/set-password.html MySQL :: MySQL 5.7 Reference Manual :: 14.7.1.7 SET PASSWORD Syntax]
* [http://dev.mysql.com/doc/refman/5.7/en/drop-user.html MySQL :: MySQL 5.7 Reference Manual :: 14.7.1.3 DROP USER Syntax]
 
==== ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysql.sock' ====
Condition on Cygwin terminal of Windows:
<pre>
$ mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysql.sock' (2)
 
$ mysql -h localhost -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysql.sock' (2)
</pre>
 
Solution:
* Change {{kbd | key=<nowiki>-h localhost</nowiki>}} to {{kbd | key=<nowiki>-h 127.0.0.1</nowiki>}}
<pre>
$ mysql -h 127.0.0.1 -u root -p
</pre>
 
==== ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111 "Connection refused") ====
 
Solution:
* Check if the MySQL service is running or not<ref>[https://www.cyberciti.biz/faq/how-to-find-out-if-mysql-is-running-on-linux/ HowTo: Find out If MySQL Is Running On Linux Or Not]</ref>. If not, start the MySQL service.
 
==== ERROR 2003 (HY000): Can't connect to MySQL server on 'IP' (116 "Connection timed out") ====
Solution:
* Check the permission of MySQL database user.
* Check the firewall rules. More on [https://devops.profitbricks.com/tutorials/install-mysql-on-centos-7/#firewall-rules Install MySQL on CentOS 7 | ProfitBricks DevOps Central]
** Check if your IP address was included in the allowed IP address list of firewall rules.
** Check if your IP address was changed by using [https://whatismyipaddress.com/ What Is My IP Address?] services.
References:
* [https://support.rackspace.com/how-to/mysql-connect-to-your-database-remotely/ Connect to a MySQL database remotely]
 
==== ERROR 2013: Lost connection to MySQL server during query ====
Message: Error Code: 2013. Lost connection to MySQL server during query
 
Condition: After executed the following query contains number of rows which exceed 1,000,000 rows, I met the error message 'Error Code: 2013. Lost connection to MySQL server during query'.
<pre>
INSERT IGNORE INTO `target`.`table` SELECT * FROM `source`.`table`;
</pre>
 
Solution:
* Increase the settings of (1) '''DBMS connection keep-alive interval (in seconds)''' & (2)  '''DBMS connection read time out (in seconds)''' on [https://www.mysql.com/products/workbench/ MySQL Workbench] <ref>[http://stackoverflow.com/questions/16877574/how-can-i-execute-sql-queries-that-take-longer-99-999-seconds-on-mysql-workbench How can I execute SQL queries that take longer 99,999 seconds on MySQL Workbench? - Stack Overflow]</ref><ref>[http://stackoverflow.com/questions/10563619/error-code-2013-lost-connection-to-mysql-server-during-query Error Code: 2013. Lost connection to MySQL server during query - Stack Overflow]</ref>. And remember to restart the MySQL Workbench after the settings were modified. e.g. The default setting of '''DBMS connection read time out (in seconds)''' is 30 seconds, you may increase to 6000 seconds (100 minutes).
* Reduce the number of rows to reduce the execution time (1) by using {{kbd | key=LIMIT}} clause (2) or by splitting the query size e.g. {{kbd | key=<nowiki>MOD(column, 2) = 0</nowiki>}} & {{kbd | key=<nowiki>MOD(column, 2) > 0</nowiki>}} if the column is numeric.
<pre>
INSERT IGNORE INTO `target`.`table` SELECT * FROM `source`.`table` LIMIT 0, 10000;
</pre>
 
==== Navicat error:  [Exp] OLE error 800A03EC ====
error message:
<pre>
[Msg] [Exp] Export to - test.xlsx
[Err] [Row1048576] [Exp] OLE error 800A03EC
[Err] [Row1048577] [Exp] OLE error 800A03EC
[Err] [Row1048578] [Exp] OLE error 800A03EC
[Err] [Row1048579] [Exp] OLE error 800A03EC
</pre>
 
cause:
* Rows count of results exceed the limit of [[Microsoft Excel]] Worksheet size: 1,048,576 rows
 
solution:
* LIMIT the rows of MySQL query
 
==== resolve insufficient hard disk space where mysql data located ====
[http://errerrors.blogspot.tw/2016/07/mysql.html Err: 解決 MySQL 資料庫所在硬碟空間不足的狀況]


=== further reading ===
=== further reading ===

Revision as of 11:24, 23 January 2018

MySQL commands and troubleshooting of MySQL errors.

Preparation

install MySQL database client apps contains mysql & mysqldump commands

  • Linux Os linux.png :
  • Win Os windows.png : Install (1) Cygwin, (2) search mysql & install MySQL database clients apps package
  • macOS icon_os_mac.png : Install XAMPP. Path of mysql executable file is: /Applications/xampp/xamppfiles/bin/mysql

(optional) install the Pipe Viewer (pv) package

  • Linux Os linux.png :
    1. How to Enable RPMForge Repository in RHEL/CentOS 7.x/6.x/5.x/4.x
    2. (1)yum install pv for RHEL / CentOS / SL / Fedora Linux[1]; (2) apt-get install pv for Debian / Ubuntu[2];
  • Win Os windows.png : Install (1) Cygwin, (2) search pv & install pv package
  • macOS icon_os_mac.png : Install (1) brew install pv to get the latest version of pv package[3] and (2) MySQL database clients from XAMPP. Path of mysql is: /Applications/xampp/xamppfiles/bin/mysql

create the db user

  1. create the db user
  2. grant the minimum permission: SELECT, LOCK TABLES to the db user. SQL query: GRANT SELECT, LOCK TABLES ON `DATA\_BASE\_NAME`.* TO 'dbuser'@'localhost';[4]
  3. the db user will be able to execute the mysqldump command

Exporting data of database/table into MySql sql file

Exporting entire data

method1: Good.gif export the compressed *.sql file (especially for BIG sql file). It will show a progress bar and estimated time to complete the mysqldump[5][6][7]:

  1. (optional) install pv if the pv was not installed
  2. (for InnoDB tables)mysqldump -h localhost -u username -p --force --single-transaction --default-character-set=utf8 DATA_BASE_NAME | pv | gzip -c > database.sql.gz [8][9] and press Enter
  3. ask to enter password and press Enter

optional: Append the Today's date to file name

  • On Linux Os linux.png : (for InnoDB tables)mysqldump -h localhost -u username -p --force --single-transaction --default-character-set=utf8 DATA_BASE_NAME | pv | gzip -c > database.sql.$(date +"%y%m%d").gz

method2: Bulk export individual tables into the multiple compressed *.sql files 

mysqldump -h localhost -u username -pPASSWORD --force --single-transaction --default-character-set=utf8 DB_NAME TABLE_1 | pv | gzip -c > table_1.sql.gz
mysqldump -h localhost -u username -pPASSWORD --force --single-transaction --default-character-set=utf8 DB_NAME TABLE_2 | pv | gzip -c > table_2.sql.gz

note: the last line of above part is return symbol. The last command will not be executed automatically without the return symbol.

method3: export the *.sql file. It will show a progress bar and estimated time to complete the mysqldump [10]:

  1. (optional if the pv was not installed) yum install pv for RHEL / CentOS / SL / Fedora Linux
  2. (for InnoDB tables)mysqldump -h localhost -u username -p --force --single-transaction --default-character-set=utf8 DATA_BASE_NAME | pv > database.sql and press Enter
  3. enter password and press Enter

method4: export the *.sql file

  1. mysqldump -h localhost -u username -p --single-transaction --default-character-set=utf8 DATA-BASE-NAME > /path/to/database.sql

method5: Using phpmyadmin to export the database. Icon_exclaim.gif But I found the number rows of table after imported was not the same with the number rows of original table once.

Exporting selected data

mysqldump - Append MYSQL dump to a table - Stack Overflow [Last visited: 2016-06-29]


Potential failure issue

  • insufficient hard-disk space

Importing data from MySql sql file

Icon_exclaim.gif Notice: existing database will be overwritten

method 1: Good.gif Import the compressed *.sql file with gzip (especially for BIG sql file). It will show a progress bar and estimated time to complete the mysql command:

  1. (optional) install pv if the pv was not installed for RHEL / CentOS / SL / Fedora Linux
  2. Check if the file is gzip format (test the compressed file integrity) ex: (1) gunzip -t database.sql.gz If not, it will return the message "gzip: database.sql.gz: not in gzip format." (2) Using WinMD5 Free for Win Os windows.png or md5sum command for Linux Os linux.png to obtain MD5 checksum of files.
  3. pv database.sql.gz | gunzip | mysql -u username -p -h localhost --default_character_set utf8 --force DATA_BASE_NAME [11] and press Enter
  4. enter password and press Enter The console window will show ETA (Estimated Time of Arrival)

method 2: Import *.sql file:

  1. (optional if the .sql file was compressed) unzip data.zip or gzip -d data.gz if the file was compressed by gzip
  2. mysql -u username -p -h localhost --default_character_set utf8 --force DATA_BASE_NAME < data.sql [12] and press Enter
  3. enter password and press Enter

method 3: Import the *.sql file (especially for BIG sql file). It will show a progress bar and estimated time to complete the mysql command[13]:

  1. (optional if the pv was not installed) yum install pv for RHEL / CentOS / SL / Fedora Linux
  2. pv data.sql | mysql -u username -p -h localhost --default_character_set utf8 --force DATA_BASE_NAME [14] and press Enter
  3. enter password and press Enter The console window will show ETA (Estimated Time of Arrival)

method 4: Import ZIP file to MySql directly:

  1. (optional if the 7Zip was not installed) yum install p7zip
  2. 7za x -so data.zip | mysql -u username -p -h localhost --default_character_set utf8 --force DATA_BASE_NAME [15][16] and press Enter
  3. enter password and press Enter

Synchronizing databases

Synchronizing two MySQL databases:

  • HeidiSQL - MySQL, MSSQL and PostgreSQL made easy v.9.4.0.5125 for Win Os windows.png , macOS icon_os_mac.png & Linux Os linux.png
    • Steps: Choose the database or table --> Export database as SQL --> Output: Select the mysql server connection
    • Scheduler: Not available[17] Icon_exclaim.gif. Manually synchronizing databases between two different servers.
  • Replication
    • Steps:
    • Scheduler: Auto Good.gif.
  • $ SQLyog v.12.4.0 for Win Os windows.png .
    • Steps: Menu --> Powertools --> Database Synchronization Wizard
    • Scheduler: Available Good.gif. Save the job file & Schedule it using Windows scheduler.

Transfer date from MS SQL server to MySQL server:

  • $ SQLyog for Win Os windows.png . Use a query to specify the data to transfer from MS SQL server into MySQL server.

Show the MySQL process list & kill the process

Show the MySQL process list & kill the process (especial for SLOW query command)[18]

  1. mysql -h HOST -u ACCOUNT -p
  2. And keyin the PASSWORD of your MySQL ACCOUNT. The first character will be changed to mysql> from $ or #
  3. mysql>
    • SHOW FULL PROCESSLIST\G to show the process list
    • SHOW PROCESSLIST\G to show the brief process list
  4. mysql> kill 101; to kill the process with Id number: 101
  5. mysql> exit; to leave the MySQL command.

Troubleshooting of MySQL errors

Troubleshooting of MySQL errors

further reading

references

  1. ↑ Linux / Unix pv Command: Monitor Progress of Data Sent Via a Pipe
  2. ↑ ivarch.com: Pipe Viewer
  3. ↑ Pipe Viewer (pv) in Mac OSX
  4. ↑ security - Minimum permissions for a user to perform a mysqldump? - Server Fault
  5. ↑ mysql - How can I monitor the progress of an import of a large .sql file? - Database Administrators Stack Exchange
  6. ↑ MySQL :: MySQL 5.1 Reference Manual :: 4.5.4 mysqldump — A Database Backup Program
  7. ↑ backup - How can I slow down a MySQL dump as to not affect current load on the server? - Stack Overflow
  8. ↑ pv + gzip + mysql — W. Andrew Loe III: Journal
  9. ↑ (if have permission to LOCK TABLES)mysqldump -h localhost -u username -p DATA_BASE_NAME | pv | gzip -c > database.sql.gz (if have no permission to LOCK TABLES)mysqldump -h localhost -u username -p --lock-tables=false DATA_BASE_NAME | pv | gzip -c > database.sql.gz via mysql - Run MySQLDump without Locking Tables - Stack Overflow
  10. ↑ MySQL Import/Export Progress Bar - Kevin Warrington
  11. ↑ pv + gzip + mysql — W. Andrew Loe III: Journal
  12. ↑ Import MySQL Dumpfile, SQL Datafile Into My Database
  13. ↑ mysql - How can I monitor the progress of an import of a large .sql file? - Database Administrators Stack Exchange
  14. ↑ Import MySQL Dumpfile, SQL Datafile Into My Database
  15. ↑ database - Importing zipped files in Mysql using command line - Stack Overflow
  16. ↑ Install 7Zip on CentOS 5.5
  17. ↑ Schedule backups/exports
  18. ↑ MySQL :: MySQL 5.1 Reference Manual :: 13.7.5.31 SHOW PROCESSLIST Syntax


Troubleshooting of ...

Template

Retrieved from "https://wiki.planetoid.info/index.php?title=MySQL_commands&oldid=18971"