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--- mysql [2011/01/11 15:04]
193.170.221.5
+++ mysql [2013/06/05 08:40]
admin [MySQL]
@@ Zeile 1: / Zeile 1: @@
 ====== MySQL ======
-==== MS ACCESS to MySQL ====
+[[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.webcheatsheet.com/SQL/mysql_backup_restore.php#phpmyadmin|Backing Up and Restoring using phpMyAdmin]] \\
-  *http://www.bullzip.com/products/a2m/info.php
+==== root Passwort von MySQL vergessen ====
-==== Backing Up and Restoring using PHPMyAdmin ====
+  *http://www.novell.com/communities/node/6055
+  *http://www.suseblog.com/reset-mysql-root-password-in-linux
-  *[[http://www.webcheatsheet.com/SQL/mysql_backup_restore.php#phpmyadmin|Backing Up and Restoring using PHPMyAdmin]]
+  rcmysql stop
+  mysqld_safe --skip-grant-tables
+  mysql --user=root mysql
+  update user set Password=PASSWORD('new-password') where user='root'; flush privileges; exit;
+  killall mysqld_safe
+  rcmysql start
+==== Joomla admin Passwort ändern ====
+  mysql -u root -pmyschool -e "UPDATE jos_users SET password=MD5('password') WHERE username='admin';"
+====MySQL Datenbank überprüfen ====
+  mysqlcheck --check [Datenbankname] -p
+  mysqlcheck -A -p für alle
+====MySQL Datenbank versuchen zu reparieren ====
+  mysqlcheck --repair [Datenbankname.Tabellenname] -p
+  mysqlcheck -A --repair -p (für alle!)
 ====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]]
   *[[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
-  *[[http://linux.die.net/man/1/mysqlcheck|mysqlcheck]]
+  myisamchk -r mitglieder.MYI
-  *mysqlcheck -A -r -p
+  mysqlcheck -A -r -p
   *[[A quick note on MySQL troubleshooting and MySQL replication recovery]]
-==== root Passwort von MySQL vergessen ====
+==== phpMyAdmin: Neue Datenbank anlegen ====
+==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
-<file>
+==== Suchen/Ersetzen ====
-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
+  UPDATE tabelle SET feld = REPLACE(feld, 'suchbegriff', 'ersetzender')
-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.
+==== Tabelle kopieren ====
-mysql –user=root mysql
+  CREATE TABLE tabelle1 SELECT * FROM tabelle
-update user set Password=PASSWORD(’new-password’) where user=’root’;
+==== Tabellenstruktur kopieren ====
-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.
+  CREATE TABLE tabelle1 SELECT * FROM tabelle WHERE 0
-</file>
-==== Joomla admin Passwort ändern ====
-  mysql -u root -pmyschool -e "UPDATE jos_users SET password=MD5('password') WHERE username='admin';"
+==== Tabellen vergleichen ====
-===MySQL Datenbank überprüfen ===
+  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
-  mysqlcheck --check [Datenbankname] -p
+==== Datenbank sichern ====
-  mysqlcheck -A -p für alle
-===MySQL Datenbank versuchen zu reparieren ===
+  mysqldump -u <Benutzername> -p<Passwort> <DBName> > dateiname.sql  (oder statt "<DBName>" "--all-databases" . Wichtig: zwischen "-p" und dem Passwort darf kein Leerzeichen stehen
-  mysqlcheck --repair [Datenbankname.Tabellenname] -p
-  mysqlcheck -A --repair -p (für alle!)
-===Diverse Fehler ===
+==== Datenbank rücksichern ====
-  *Table is marked as crashed and should be repaired
-    *In das Datenbankverzeichnis einstein:/var/lib/mysql/avanger wechseln und folgenden Befehl ausführen
-  myisamchk -r mitglieder.MYI
-===Resetting MySQL Root Password===
+  mysql -p<Paßwort> -u <Benutzername> <DB-Name> < dateiname
-  *http://www.novell.com/communities/node/6055
-  *http://www.suseblog.com/reset-mysql-root-password-in-linux
+==== 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';"

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