Bioinformacs Resources - SQL - Rostlab · BioinfRes SoSe 16 Prerequisites Know your server version:...
Transcript of Bioinformacs Resources - SQL - Rostlab · BioinfRes SoSe 16 Prerequisites Know your server version:...
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Bioinforma)csResources-SQL-
Lecture&ExercisesProf.B.Rost,Dr.L.Richter,J.Reeb
Ins)tutfürInforma)kI12
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SQLinuse● SyntaxofMySQLserver5.6● usefulu)li)es:mysql,mysqladmin
● frequenttasks/opera)ons
● commandline● Pythonintegra)on
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Prerequisites
● Knowyourserverversion:EvenifSQLisastandard,differentvendorsimplementdifferentversionsofaddvendor/versionspecificfeatures
● Haveclientprogramsinstalled(mysql,mysqladmin)
● Havealanguagedriver/connectorinstalled
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Prerequisites
● commandlineclientscometypicallywiththeinstalla)on
● GUIclientsarealsoavailable● Connectorscomeindifferentflavorsformanylanguagesandmayhavetobeinstalled
● ConnectorsmayofferdifferentAPIs
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(User)Administra)on
● Administra)oninforma)onisstoredinthedatabase‘mysql’
● Usershavetoconnecttothedatabaseserver● Usersaremanagedviaaccounts:- username- hostname/IPaddress- op)onalpassword
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(User)Administra)on
● Example:‘dowj’@’myhost’● specialhostnames:localhost,127.0.0.1,::1
● ‘empty’username:anonymous
● hostnamesmaycontainwildcards:%or_● omissionofuserorhostnameallowed
● passwordcanbeandissetindividuallyforeachname/hostcombina)on
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Example
● Set/changepassword:SETPASSWORDfor‘dowj’@’localhost’=PASSWORD(‘cleartext_password’)
+---------+-------------------+----------+!| user | host | password |!+---------+-------------------+----------+!| root | localhost | *CABC7 |!| root | phoenix.fritz.box | *CABC7 |!| root | 127.0.0.1 | *CABC7 |!| root | ::1 | *CABC7 |!| | localhost | |!| | phoenix.fritz.box | |!| richter | localhost | *75B62 |!+---------+-------------------+----------+!
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MoreAdministra)on
● default:onlyrootaccount,mightbeunsecured● databases:mysql,informa)on_schema,performanceschema,test
● furthercrea)onofuseraccountanddatabasesneeded
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MoreAdministra)on
● usethemysqladmintooltocreateanew,emptydatabase:mysqladmin -u root -p create resource_db!
● createauser(inamysqlsession):CREATE USER dowj [identified by ‘clear_pw’]
● nowyouhavetograntprivilegesonacertaindatabasetotheuser:GRANT ALL ON resource_db.* TO ‘dowj’@’localhost’
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FullGrantSyntax1GRANT!
priv_type [(column_list)]!
[, priv_type [(column_list)]] ...!
ON [object_type] priv_level!
TO user_specification [, user_specification] ...!
[REQUIRE {NONE | tsl_option [[AND] tsl_option] ...}]!
[WITH {GRANT OPTION | resource_option} ...]!
GRANT PROXY ON user_specification!
TO user_specification [, user_specification] ...!
[WITH GRANT OPTION]!
object_type: {!
TABLE!
| FUNCTION!
| PROCEDURE!
}!
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FullGrantSyntax2priv_level: {!
*!
| *.*!
| db_name.*!
| db_name.tbl_name!
| tbl_name!
| db_name.routine_name!
}!
user_specification:!
user [ auth_option ]!
auth_option: {!
IDENTIFIED BY 'auth_string'!
| IDENTIFIED BY PASSWORD 'hash_string'!
| IDENTIFIED WITH auth_plugin!
| IDENTIFIED WITH auth_plugin AS 'hash_string'!
}!
!
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FullGrantSyntax3tsl_option: {!
SSL!
| X509!
| CIPHER 'cipher'!
| ISSUER 'issuer'!
| SUBJECT 'subject'!
}!
!
resource_option: {!
| MAX_QUERIES_PER_HOUR count!
| MAX_UPDATES_PER_HOUR count!
| MAX_CONNECTIONS_PER_HOUR count!
| MAX_USER_CONNECTIONS count!
}!
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Privileges
from http://dev.mysql.com/doc/refman/5.6/en/grant.html
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DataExport/Import● hjp://dev.mysql.com/doc/refman/5.6/en/mysqldump.html
● mysqldumptocreatelogicalbackupsi.e.● asetofSQLstatementstoreproducethecurrentstateofthedatabase
● otheroutputformatsthanSQL:CSV,XML● requiretherespec)veprivileges
● Examples:mysqldump [options] db_name [tbl_name ...] mysqldump [options] --databases db_name ... mysqldump [options] --all-databases!
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DataExport/Import● easybackupoflogicaldumps:● inthemysqlclient:source file_name!
● otherwise:createemptytablesanduseLOADDATAINFILE- canbequitetrickybecauseofinputformatspecifica)on