peer

Benutzer-Werkzeuge

Webseiten-Werkzeuge

Zuletzt angesehen: • mysql
mysql

Inhaltsverzeichnis

MySQL

phpMyAdmin’s Visual Query Designer
MySQL - ACCESS
ACCESS - MySQL
MS ACCESS to MySQL
Backing Up and Restoring using phpMyAdmin

root Passwort von MySQL vergessen

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

  • In das Datenbankverzeichnis einstein:/var/lib/mysql/avanger wechseln und folgenden Befehl ausführen
myisamchk -r mitglieder.MYI
mysqlcheck -A -r -p

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

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 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

...
#log_bin                        = /var/log/mysql/mysql-bin.log
#expire_logs_days        = 10
#max_binlog_size         = 100M
...
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';"
mysql.txt · Zuletzt geändert: 2013/06/05 09:01 von admin

Seiten-Werkzeuge

Falls nicht anders bezeichnet, ist der Inhalt dieses Wikis unter der folgenden Lizenz veröffentlicht: CC Attribution-Noncommercial-Share Alike 4.0 International
CC Attribution-Noncommercial-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki