Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung Nächste Überarbeitung Beide Seiten der Revision | ||
mysql [2011/06/05 17:08] admin |
mysql [2013/06/05 08:40] admin |
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[[http://olex.openlogic.com/wazi/2011/get-the-most-out-of-phpmyadmins-visual-query-designer/|phpMyAdmin’s Visual Query Designer]] \\ | [[http://olex.openlogic.com/wazi/2011/get-the-most-out-of-phpmyadmins-visual-query-designer/|phpMyAdmin’s Visual Query Designer]] \\ | ||
+ | [[MySQL - ACCESS]] | ||
[[http://www.bullzip.com/products/a2m/info.php|MS ACCESS to MySQL]] \\ | [[http://www.bullzip.com/products/a2m/info.php|MS ACCESS to MySQL]] \\ | ||
- | [[http://www.webcheatsheet.com/SQL/mysql_backup_restore.php#phpmyadmin||Backing Up and Restoring using phpMyAdmin]] \\ | + | [[http://www.webcheatsheet.com/SQL/mysql_backup_restore.php#phpmyadmin|Backing Up and Restoring using phpMyAdmin]] \\ |
- | ====Table is marked as crashed and should be repaired==== | + | ==== root Passwort von MySQL vergessen ==== |
- | *[[http://www.webcheatsheet.com/SQL/mysql_backup_restore.php|Back Up and Restore a MySQL Database]] | + | |
- | *[[http://blog.emeidi.com/2007/09/mysql-table-is-marked-as-crashed-and.html|Table is marked as crashed and should be repaired]] | + | |
+ | *http://www.novell.com/communities/node/6055 | ||
+ | *http://www.suseblog.com/reset-mysql-root-password-in-linux | ||
- | *In das Datenbankverzeichnis einstein:/var/lib/mysql/avanger wechseln und folgenden Befehl ausführen | + | rcmysql stop |
- | *myisamchk -r mitglieder.MYI | + | |
- | *[[http://linux.die.net/man/1/mysqlcheck|mysqlcheck]] | + | |
- | *mysqlcheck -A -r -p | + | |
- | *[[A quick note on MySQL troubleshooting and MySQL replication recovery]] | + | mysqld_safe --skip-grant-tables |
- | ==== root Passwort von MySQL vergessen ==== | + | mysql --user=root mysql |
- | <file> | + | update user set Password=PASSWORD('new-password') where user='root'; flush privileges; exit; |
- | First things first. Log in as root and stop the mysql daemon. Now lets start up the mysql daemon and skip the grant tables which store the passwords. | + | |
- | mysqld_safe –skip-grant-tables | + | killall mysqld_safe |
- | You should see mysqld start up successfully. If not, well you have bigger issues. Now you should be able to connect to mysql without a password. | + | rcmysql start |
- | mysql –user=root mysql | ||
- | |||
- | update user set Password=PASSWORD(’new-password’) where user=’root’; | ||
- | flush privileges; | ||
- | exit; | ||
- | |||
- | Now kill your running mysqld, then restart it normally. You should be good to go. Try not to forget your password again. | ||
- | </file> | ||
==== Joomla admin Passwort ändern ==== | ==== Joomla admin Passwort ändern ==== | ||
mysql -u root -pmyschool -e "UPDATE jos_users SET password=MD5('password') WHERE username='admin';" | mysql -u root -pmyschool -e "UPDATE jos_users SET password=MD5('password') WHERE username='admin';" | ||
- | ===MySQL Datenbank überprüfen === | + | ====MySQL Datenbank überprüfen ==== |
mysqlcheck --check [Datenbankname] -p | mysqlcheck --check [Datenbankname] -p | ||
+ | |||
mysqlcheck -A -p für alle | mysqlcheck -A -p für alle | ||
- | ===MySQL Datenbank versuchen zu reparieren === | + | ====MySQL Datenbank versuchen zu reparieren ==== |
mysqlcheck --repair [Datenbankname.Tabellenname] -p | mysqlcheck --repair [Datenbankname.Tabellenname] -p | ||
+ | |||
mysqlcheck -A --repair -p (für alle!) | mysqlcheck -A --repair -p (für alle!) | ||
- | ===Diverse Fehler === | + | ====Table is marked as crashed and should be repaired==== |
- | *Table is marked as crashed and should be repaired | + | *[[http://www.webcheatsheet.com/SQL/mysql_backup_restore.php|Back Up and Restore a MySQL Database]] |
- | *In das Datenbankverzeichnis einstein:/var/lib/mysql/avanger wechseln und folgenden Befehl ausführen | + | *[[http://blog.emeidi.com/2007/09/mysql-table-is-marked-as-crashed-and.html|Table is marked as crashed and should be repaired]] |
+ | *[[http://linux.die.net/man/1/mysqlcheck|mysqlcheck]] | ||
+ | |||
+ | *In das Datenbankverzeichnis einstein:/var/lib/mysql/avanger wechseln und folgenden Befehl ausführen | ||
myisamchk -r mitglieder.MYI | myisamchk -r mitglieder.MYI | ||
- | ===Resetting MySQL Root Password=== | + | mysqlcheck -A -r -p |
- | *http://www.novell.com/communities/node/6055 | + | |
- | *http://www.suseblog.com/reset-mysql-root-password-in-linux | + | |
- | === Datenbank sichern und zurückschreiben === | + | *[[A quick note on MySQL troubleshooting and MySQL replication recovery]] |
- | *backup: mysqldump datenbankname > daten.sql -ubenutzername -p | + | ==== phpMyAdmin: Neue Datenbank anlegen ==== |
- | *restore: mysqldump datenbankname < daten.sql -ubenutzername -p | + | ==1. Neue Datenbank anlegen== |
+ | *PhpMyAdmin > Home > Neue Datenbank anlegen > cms_poesi | ||
+ | == 2. Benutzer anlegen bzw. editieren== | ||
+ | *Rechte > Neuen Benutzer hinzufügen > Benutzername > Kennwort > Datenbankspezifische Rechte > Rechte zu folgender Datenbank hinzufügen > Fenster öffen und Datenbank auswählen > Datenbankspezifische Rechte > Alle auswählen > OK | ||
+ | |||
+ | ==== Suchen/Ersetzen ==== | ||
+ | |||
+ | UPDATE tabelle SET feld = REPLACE(feld, 'suchbegriff', 'ersetzender') | ||
+ | |||
+ | ==== Tabelle kopieren ==== | ||
+ | |||
+ | CREATE TABLE tabelle1 SELECT * FROM tabelle | ||
+ | |||
+ | ==== Tabellenstruktur kopieren ==== | ||
+ | |||
+ | CREATE TABLE tabelle1 SELECT * FROM tabelle WHERE 0 | ||
+ | |||
+ | ==== Tabellen vergleichen ==== | ||
+ | |||
+ | select products.* from products LEFT JOIN products_to_categories ON products.products_id=products_to_categories.products_id where products_to_categories.products_id is NULL | ||
+ | |||
+ | ==== Datenbank sichern ==== | ||
+ | |||
+ | mysqldump -u <Benutzername> -p<Passwort> <DBName> > dateiname.sql (oder statt "<DBName>" "--all-databases" . Wichtig: zwischen "-p" und dem Passwort darf kein Leerzeichen stehen | ||
+ | |||
+ | ==== Datenbank rücksichern ==== | ||
+ | |||
+ | mysql -p<Paßwort> -u <Benutzername> <DB-Name> < dateiname | ||
+ | |||
+ | ==== Datenbank löschen ==== | ||
+ | |||
+ | mysql -u root -popen23 -e "DROP DATABASE dbname" | ||
+ | |||
+ | ==== Tabelle leeren ==== | ||
+ | |||
+ | mysql -u root -p stundenplan -e "TRUNCATE TABLE daten" | ||
+ | |||
+ | ==== Tabelle anzeigen ==== | ||
+ | |||
+ | mysql -u root -p stundenplan -e "SELECT * FROM daten" | ||
+ | |||
+ | ==== Daten in Tabelle updaten - Dateiname=Tabellenname! - Tabelleninhalt wird ersetzt ==== | ||
+ | |||
+ | mysqlimport -u root -p --default-character-set=utf8 --fields-terminated-by="," --fields-optionally-enclosed-by="\"" --lines-terminated-by="\r\n" --local --delete stundenplan /root/daten.csv | ||
+ | |||
+ | ==== Stundenplan importieren ==== | ||
+ | |||
+ | *Zeichensatz konvertieren mit [[http://peer.st/dw/doku.php?id=iconv|iconv]] | ||
+ | |||
+ | ===== MySQL Commands ===== | ||
+ | |||
+ | ^ Description ^ Command ^ | ||
+ | | To login (from unix shell) use -h only if needed. | [mysql dir]/bin/mysql -h hostname -u root -p | | ||
+ | | Create a database on the sql server. | create database [databasename]; | | ||
+ | | List all databases on the sql server. | show databases; | | ||
+ | | Switch to a database. | use [db name]; | | ||
+ | | To see all the tables in the db. | show tables; | | ||
+ | | To see database's field formats. | describe [table name]; | | ||
+ | | To delete a db. | drop database [database name]; | | ||
+ | | To delete a table. | drop table [table name]; | | ||
+ | | Show all data in a table. | SELECT * FROM [table name]; | | ||
+ | | Returns the columns and column information pertaining to the designated table. | show columns from [table name]; | | ||
+ | | | | | ||
+ | | Show certain selected rows with the value "whatever". | SELECT * FROM [table name] WHERE [field name] = "whatever"; | | ||
+ | | | | | ||
+ | | Show all records containing the name "Bob" AND the phone number '3444444'. | SELECT * FROM [table name] WHERE name = "Bob" AND phone_number = '3444444'; | | ||
+ | | | | | ||
+ | | Show all records not containing the name "Bob" AND the phone number '3444444' order by the phone_number field. | SELECT * FROM [table name] WHERE name != "Bob" AND phone_number = '3444444' order by phone_number; | | ||
+ | | | | | ||
+ | | Show all records starting with the letters 'bob' AND the phone number '3444444'. | SELECT * FROM [table name] WHERE name like "Bob%" AND phone_number = '3444444'; | | ||
+ | | | | | ||
+ | | Use a regular expression to find records. Use "REGEXP BINARY" to force case-sensitivity. This finds any record beginning with a. | SELECT * FROM [table name] WHERE rec RLIKE '^a$'; | | ||
+ | | | | | ||
+ | | Show unique records. | SELECT DISTINCT [column name] FROM [table name]; | | ||
+ | | Show selected records sorted in an ascending (asc) or descending (desc). | SELECT [col1],[col2] FROM [table name] ORDER BY [col2] DESC; | | ||
+ | | Count rows. | SELECT COUNT(*) FROM [table name]; | | ||
+ | | | | | ||
+ | | Join tables on common columns. | select lookup.illustrationid, lookup.personid,person.birthday from lookup | | ||
+ | | | left join person on lookup.personid=person.personid=statement to join birthday in person table with primary illustration id; | | ||
+ | | Switch to the mysql db. Create a new user. | INSERT INTO [table name] (Host,User,Password) VALUES('%','user',PASSWORD('password')); | | ||
+ | | Change a users password.(from unix shell). | [mysql dir]/bin/mysqladmin -u root -h hostname.blah.org -p password 'new-password' | | ||
+ | | Change a users password.(from MySQL prompt). | SET PASSWORD FOR 'user'@'hostname' = PASSWORD('passwordhere'); | | ||
+ | | Switch to mysql db.Give user privilages for a db. | INSERT INTO [table name] (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv) VALUES ('%','db','user','Y','Y','Y','Y','Y','N'); | | ||
+ | | To update info already in a table. | UPDATE [table name] SET Select_priv = 'Y',Insert_priv = 'Y',Update_priv = 'Y' where [field name] = 'user'; | | ||
+ | | Delete a row(s) from a table. | DELETE from [table name] where [field name] = 'whatever'; | | ||
+ | | Update database permissions/privilages. | FLUSH PRIVILEGES; | | ||
+ | | Delete a column. | alter table [table name] drop column [column name]; | | ||
+ | | Add a new column to db. | alter table [table name] add column [new column name] varchar (20); | | ||
+ | | Change column name. | alter table [table name] change [old column name] [new column name] varchar (50); | | ||
+ | | Make a unique column so you get no dupes. | alter table [table name] add unique ([column name]); | | ||
+ | | Make a column bigger. | alter table [table name] modify [column name] VARCHAR(3); | | ||
+ | | Delete unique from table. | alter table [table name] drop index [colmn name]; | | ||
+ | | Load a CSV file into a table. | LOAD DATA INFILE '/tmp/filename.csv' replace INTO TABLE [table name] FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n' (field1,field2,field3); | | ||
+ | | Dump all databases for backup. Backup file is sql commands to recreate all db's. | [mysql dir]/bin/mysqldump -u root -ppassword --opt >/tmp/alldatabases.sql | | ||
+ | | Dump one database for backup. | [mysql dir]/bin/mysqldump -u username -ppassword --databases databasename >/tmp/databasename.sql | | ||
+ | | Dump a table from a database. | [mysql dir]/bin/mysqldump -c -u username -ppassword databasename tablename > /tmp/databasename.tablename.sql | | ||
+ | | Restore database (or database table) from backup. | [mysql dir]/bin/mysql -u username -ppassword databasename < /tmp/databasename.sql | | ||
+ | | Create Table Example 1. | CREATE TABLE [table name] (firstname VARCHAR(20), middleinitial VARCHAR(3), lastname VARCHAR(35),suffix VARCHAR(3), officeid VARCHAR(10),userid VARCHAR(15),username VARCHAR(8),email VARCHAR(35),phone VARCHAR(25), groups VARCHAR(15),datestamp DATE,timestamp time,pgpemail VARCHAR(255)); | | ||
+ | | Create Table Example 2. | create table [table name] (personid int(50) not null auto_increment primary key,firstname varchar(35),middlename varchar(50),lastname varchar(50) default 'bato'); | | ||
+ | |||
+ | ===== Binary Log Files ===== | ||
+ | <file /etc/my.cnf> | ||
+ | ... | ||
+ | #log_bin = /var/log/mysql/mysql-bin.log | ||
+ | #expire_logs_days = 10 | ||
+ | #max_binlog_size = 100M | ||
+ | ... | ||
+ | </file> | ||
+ | mysql -u root -p 'MyPassword' -e "PURGE BINARY LOGS TO 'mysql-bin.03';" | ||
+ | mysql -u root -p 'MyPassword' -e "PURGE BINARY LOGS BEFORE '2008-12-15 10:06:06';" | ||