Difference between revisions of "MySQL"

Revision as of 16:06, 27 October 2019

About

MySQL is a FOSS database engine and server. It fills roughly the same niche as Microsoft SQL Server.

The MySQL package (at least in Linux) has a number of helper utilities available, including MySQL Workbench (a combination of the former MySQL Administrator and MySQL Query Browser applications).

Articles

SQL Syntax:
- /GROUP_CONCAT
- /INSERT
Versions: stuff particular to specific versions
- /version/5.7
Related
- MS Access and MySQL
How-To:
- /porting/data: backing up and restoring
- /notes: disorganized information, mostly how-to
Components:
- MySQL Administrator
- MySQL Query Browser - now replaced with Workbench
- MySQL Workbench
/archive: older stuff that probably is no longer applicable

Links

Reference

official site
- Version 5.1 Manual
- Version 4.1 Manual
Wikipedia
HashMySQL wiki: official wiki of the unofficial-but-sanctioned #mysql IRC channel on Freenode

How To

repair munged tables
- 4.5.3 mysqlcheck — A Table Maintenance Program
data recovery
- Chapter 7. Backup and Recovery
- How to recover MySQL data from Innodb? - if you have a copy of /var/www/lib/mysql but MySQL can't see the data
  - The important thing to remember is that not all of the data is in the *.fr? files.

News

2016-05-13 In MySQL, never use "utf8". Use "utf8mb4".
2007-06-21 MySQL's architect discusses open source, database in a cloud, other IT issues

@@ Line 1: / Line 1: @@
-{{software|MySQL}}{{seed}}[[MySQL]] is a [[FOSS]] database engine and server. It fills roughly the same niche as [[Microsoft SQL Server]].
+<hide>
+[[page type::article]]
+[[thing type::software]]
+[[software type::database engine]]
+[[license::libre/open source]]
+</hide>
+==About==
+[[MySQL]] is a [[FOSS]] database engine and server. It fills roughly the same niche as [[Microsoft SQL Server]].
-The MySQL package (at least in Linux) comes with a number of helper utilities, including [[MySQL Administrator]] and [[MySQL Query Browser]]. The Administrator utility is useful for making backups, and the Query Browser serves as a front-end for interacting with databases. The Query Browser is, however, somewhat buggy as of version 4.
+The MySQL package (at least in Linux) has a number of helper utilities available, including [[MySQL Workbench]] (a combination of the former [[MySQL Administrator]] and [[MySQL Query Browser]] applications).
-==Criticisms==
+==Articles==
-MySQL has been criticized by at least one user of lacking production-quality features, with version 5.0 only just starting to add them, where as other [[FOSS]] alternatives such as [[PostgreSQL]] had such features in their very earliest versions. MySQL has also been criticized for bad performance, e.g. locking entire tables when it only should have locked a row, as well as general incompatibility (Editor's note: with what?). (See also [[Wikipedia:MySQL#Criticisms of MySQL]])
+* '''SQL Syntax''':
-==Working Notes==
+** [[/GROUP_CONCAT]]
-* To work around the Query Browser bug which won't let you edit a blank table, create the first entry using MySQL's command line interface:
+** [[/INSERT]]
+* '''Versions''': stuff particular to specific versions
- woozle@camilla:~ $ mysql -h''yourhost'' -u''yourusername'' -p''yourpassword''
+** [[/version/5.7]]
- Welcome to the MySQL monitor.  Commands end with ; or \g.
+* '''Related'''
- Your MySQL connection id is 12531702 to server version: 4.1.13-standard
+** [[MS Access and MySQL]]
+* '''How-To''':
- Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
+** [[/porting/data]]: backing up and restoring
+** [[/notes]]: disorganized information, mostly how-to
- mysql> use ''yourdatabasename''
+* '''Components''':
- Reading table information for completion of table and column names
+** [[MySQL Administrator]]
- You can turn off this feature to get a quicker startup with -A
+** [[MySQL Query Browser]] - now replaced with Workbench
+** [[MySQL Workbench]]
- Database changed
+* [[/archive]]: older stuff that probably is no longer applicable
- mysql> insert into urole (''fieldname'') values("''sample value''");
- Query OK, 1 row affected (0.05 sec)
- mysql>
-...where ''yourhost'' is the name of your MySQL server, and can be anything that can resolve to an IP address, e.g. localhost, yourmachinename, yourserverdomain.com, or an actual IP address (I think).
 ==Links==
-* [http://mysql.com/ MySQL] Home Page
+===Reference===
+* [[URL::http://mysql.com/|official site]]
+** [http://dev.mysql.com/doc/refman/5.1/en/ Version 5.1 Manual]
 ** [http://dev.mysql.com/doc/refman/4.1/en/ Version 4.1 Manual]
-* {{wikipedia|MySQL}}
+* {{wikipedia}}
+* [http://hashmysql.org/ HashMySQL wiki]: official wiki of the unofficial-but-[http://dev.mysql.com/doc/refman/5.1/en/irc.html sanctioned] #mysql [[IRC]] channel on [[Freenode]]
+===How To===
+* '''repair munged tables'''
+** [https://dev.mysql.com/doc/refman/5.5/en/mysqlcheck.html 4.5.3 mysqlcheck — A Table Maintenance Program]
+* '''data recovery'''
+** [http://dev.mysql.com/doc/refman/5.5/en/backup-and-recovery.html Chapter 7. Backup and Recovery]
+** [http://egil.biz/how-to-recover-mysql-data-from-innodb/ How to recover MySQL data from Innodb?] - if you have a copy of /var/www/lib/mysql but MySQL can't see the data
+*** The important thing to remember is that not all of the data is in the *.fr? files.
+===News===
+* '''2016-05-13''' [https://medium.com/@adamhooper/in-mysql-never-use-utf8-use-utf8mb4-11761243e434 In MySQL, never use "utf8". Use "utf8mb4".]
+* '''2007-06-21''' [http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9025427&pageNumber=1 MySQL's architect discusses open source, database in a cloud, other IT issues]