Initial import

DOC/README.save-grants

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+
+## - ----------------------------------------------------------------
+## - Datenbank User und deren Rechte auslesen
+## - ----------------------------------------------------------------
+mysql -uroot -pbuz111 mysql --skip-column-name -A -e"SELECT CONCAT('SHOW GRANTS FOR ''',user,'''@''',host,''';') FROM mysql.user WHERE user<>'';" | mysql -uroot -pbuz111 mysql --skip-column-name -A  | sed 's/$/;/g' > ~/mysql-grants.sql
+

DOC/Readme.PASSWORD_EXPIRED

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+
+Fehrelmeldung:
+
+mysqladmin: connect to server at 'localhost' failed
+error: 'Your password has expired. To log in you must change it using a client that supports expired passwords.'
+
+
+Password Expiration Policy
+==========================
+
+# default_password_lifetime
+#
+# This variable defines the global automatic password expiration policy. It applies 
+# to accounts that use MySQL built-in authentication methods (accounts that use an 
+# authentication plugin of mysql_native_password, mysql_old_password, or sha256_password).
+#
+# The default default_password_lifetime value is 0, which disables automatic password 
+# expiration. If the value of default_password_lifetime is a positive integer N, it 
+# indicates the permitted password lifetime; passwords must be changed every N days.
+
+# The global password expiration policy can be overridden as desired for individual 
+# accounts using the ALTER USER statement. See Section 7.3.6, “Password Expiration Policy”.
+#
+# ! Note !
+#
+# From MySQL 5.7.4 to 5.7.10, the default default_password_lifetime value is 360 (passwords 
+# must be changed approximately once per year). For those versions, be aware that, if you 
+# make no changes to the default_password_lifetime variable or to individual user accounts, 
+# all user passwords will expire after 360 days, and all user accounts will start running 
+# in restricted mode when this happens. Clients (which are effectively users) connecting to 
+# the server will then get an error indicating that the password must be changed: 
+# ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing 
+# this statement.
+
+#  However, this is easy to miss for clients that automatically connect to the server, such 
+# as connections made from scripts. To avoid having such clients suddenly stop working due 
+# to a password expiring, make sure to change the password expiration settings for those clients, 
+# like this:
+#   
+#    ALTER USER 'script'@'localhost' PASSWORD EXPIRE NEVER
+#   
+# Alternatively, set the default_password_lifetime variable to 0, thus disabling automatic 
+# password expiration for all users.
+#
+default_password_lifetime = 0

DOC/mysql.txt

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+## - ----------------------------------------------------------------
+## - MySql Superuser anlegen
+## - ----------------------------------------------------------------
+
+## - Bemerkung:
+## -    Das Passwort wird verschl<68>sselt abgespeichert
+
+## - Von <20>berall:
+## -
+GRANT ALL PRIVILEGES ON *.* TO 'admin' IDENTIFIED BY 'Nyz!aB2u' WITH GRANT OPTION ;
+FLUSH PRIVILEGES;
+
+## - Nur von loacalhost
+## -
+GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost'  IDENTIFIED BY 'Nyz!aB2u' WITH GRANT OPTION ;
+FLUSH PRIVILEGES;
+
+
+
+## - ----------------------------------------------------------------
+## - Dantenbank  anlegen, User anlegen mit vollen Rechten auf der Datenbank
+## - ----------------------------------------------------------------
+
+CREATE DATABASE <new_db_name> CHARACTER SET utf8 COLLATE utf8_general_ci;
+GRANT ALL ON new_db.* TO 'new_user'@'localhost' IDENTIFIED BY 'password';
+FLUSH PRIVILEGES;
+
+
+## -  Dantenbank  anlegen, User mit eingeschrenkten Rechten auf der Datenbank
+## -
+## - Beispiel: vpopmail
+## -
+CREATE DATABASE vpopmail;
+GRANT select,insert,update,delete,create,drop ON vpopmail.* TO 'vpop'@'localhost' IDENTIFIED BY 'r23myzmx';
+FLUSH PRIVILEGES;
+
+
+## - ----------------------------------------------------------------
+## - Zeige alle Views einer Datenbank
+## - ----------------------------------------------------------------
+
+SHOW FULL TABLES IN <db_name> WHERE TABLE_TYPE LIKE 'VIEW'
+
+
+## - ----------------------------------------------------------------
+## - Zeige Definition eines Views
+## - ----------------------------------------------------------------
+
+show CREATE VIEW <view_name>;
+
+
+## - ----------------------------------------------------------------
+## - Datenbank User und deren Rechte auslesen
+## - ----------------------------------------------------------------
+mysql -uroot -pbuz111 mysql --skip-column-name -A -e"SELECT CONCAT('SHOW GRANTS FOR ''',user,'''@''',host,''';') FROM mysql.user WHERE user<>'';" | mysql -uroot -pbuz111 mysql --skip-column-name -A  | sed 's/$/;/g' > ~/mysql-grants.sql
+
+
+
+## - ----------------------------------------------------------------
+## - Convert databese from current latin1 to utf8
+## - ----------------------------------------------------------------
+
+db_name=<database-name>
+db_user=<database-user>
+db_pass=<database-password>
+
+old_charset=latin1
+#old_collate=latin1_swedish_ci - NOT NEEDED
+new_charset=utf8
+new_collate=utf8_unicode_ci
+
+## - 1.) dump the databse as follows:
+dumpfile=${db_name}-${old_charset}.`date +%Y%m%d-%H%M`.sql
+mysqldump -u$db_user -p$db_pass  --set-charset --skip-set-charset --add-drop-table $db_name > $dumpfile
+
+## - 2.) change character settings on mysql monitor
+query="ALTER DATABASE \`$db_name\` DEFAULT CHARACTER SET $new_charset DEFAULT COLLATE $new_collate;"
+mysql -u$db_user -p$db_pass $db_name -e "$query"
+
+## - 3.) Load he dumpfile 
+mysql -u$db_user -p$db_pass  --default-character-set=$old_charset $db_name < $dumpfile
+
+## - 4.) show result
+mysql -u$db_user -p$db_pass $db_name -e "SHOW CREATE DATABASE $db_name\G"
+
+
+
+--------------------------------------------------------------------------------------------------
+
+## - dump database WITHOUT CREATE TABLE Statements - useful, if you
+## - want add entries into existing tables of an existing database, 
+## - i.e. database "mysql"
+## - 
+mysqldump -uroot -p --add-locks --disable-keys --extended-insert \
+   --lock-tables --quick --set-charset --no-create-info mysql > db_mysql.sql
+
+## - durmp table "user" from database mysql without CREATE TABLE statment
+## -
+mysqldump -uroot -pbuz111 --add-locks --disable-keys --extended-insert --lock-tables --quick --set-charset --no-create-info mysql user | sed 's#),(#);\n(#g' | sed 's#^(#INSERT INTO `user` VALUES (#' > mysql-user.sql
+
+
+## - restore
+mysql -uroot -pbuz111 -f mysql < mysql-user.sql
+
+
+
+--------------------------------------------------------------------------------------------------
+
+
+## charset f<>r den MySQL  monitor einstellen
+##
+mysql> SET CHARACTER SET UTF8;
+## bzw.
+mysql> \C utf8
+
+
+## zeige Server-Konfiguration
+##
+mysql> SHOW VARIABLES;
+
+mysql> SHOW /*!50000 global */ VARIABLES ;
+mysql> SHOW /*!50000 global */ VARIABLES LIKE "%slow%";
+
+
+## - Zeige Sever Status
+## -
+mysql> SHOW STATUS ;
+
+mysql> SHOW /*!50000 global */ STATUS ;
+mysql> SHOW /*!50000 global */ STATUS LIKE "slow%";