SQL ALTER DATABASE Syntaxe – uvedena v DBMS

Tento článek obsahuje SQL ALTER DATABASE syntaxe, jak je implementována různými systémy pro správu databází (DBMS). Syntaxe je uvedena přesně tak, jak ji každý prodejce uvedl na svých webových stránkách. Kliknutím na příslušný odkaz zobrazíte další podrobnosti o syntaxi pro konkrétního dodavatele.

Pokryté DBMS jsou MySQL, SQL Server, PostgreSQL a Oracle Database.

MySQL

Z referenční příručky MySQL 5.7:

ALTER {DATABASE | SCHEMA} [db_name]
    alter_specification ...
ALTER {DATABASE | SCHEMA} db_name
    UPGRADE DATA DIRECTORY NAME

alter_specification:
    [DEFAULT] CHARACTER SET [=] charset_name
  | [DEFAULT] COLLATE [=] collation_name

SQL Server

Z Reference Transact-SQL:

ALTER DATABASE { database_name  | CURRENT }
{
    MODIFY NAME = new_database_name 
  | COLLATE collation_name
  | <file_and_filegroup_options>
  | <set_database_options>
}
[;]

<file_and_filegroup_options >::=
  <add_or_modify_files>::=
  <filespec>::= 
  <add_or_modify_filegroups>::=
  <filegroup_updatability_option>::= 

<set_database_options>::=
  <optionspec>::= 
  <auto_option> ::= 
  <change_tracking_option> ::=
  <cursor_option> ::= 
  <database_mirroring_option> ::= 
  <date_correlation_optimization_option> ::=
  <db_encryption_option> ::=
  <db_state_option> ::=
  <db_update_option> ::=
  <db_user_access_option> ::=
  <external_access_option> ::=
  <FILESTREAM_options> ::=
  <HADR_options> ::=  
  <parameterization_option> ::=
  <recovery_option> ::= 
  <service_broker_option> ::=
  <snapshot_option> ::=
  <sql_option> ::= 
  <termination> ::=

PostgreSQL

Z příručky PostgreSQL 9.5:

ALTER DATABASE name [ [ WITH ] option [ ... ] ]

where option can be:

    ALLOW_CONNECTIONS allowconn
    CONNECTION LIMIT connlimit
    IS_TEMPLATE istemplate

ALTER DATABASE name RENAME TO new_name

ALTER DATABASE name OWNER TO { new_owner | CURRENT_USER | SESSION_USER }

ALTER DATABASE name SET TABLESPACE new_tablespace

ALTER DATABASE name SET configuration_parameter { TO | = } { value | DEFAULT }
ALTER DATABASE name SET configuration_parameter FROM CURRENT
ALTER DATABASE name RESET configuration_parameter
ALTER DATABASE name RESET ALL

Databáze Oracle

Z online dokumentace databáze Oracle 12c Vydání 1 (12.1):

ALTER DATABASE [ database ]
  { startup_clauses
  | recovery_clauses
  | database_file_clauses
  | logfile_clauses
  | controlfile_clauses
  | standby_database_clauses
  | default_settings_clauses
  | instance_clauses
  | security_clause
  } ;

Níže jsou uvedeny podrobnosti o různých klauzulích.

startup_clauses::=

{ MOUNT [ { STANDBY | CLONE } DATABASE ]
| OPEN
  { [ READ WRITE ]
      [ RESETLOGS | NORESETLOGS ]
        [ UPGRADE | DOWNGRADE ]
  | READ ONLY
  }
}

recovery_clauses ::=

{ general_recovery
| managed_standby_recovery
| BEGIN BACKUP
| END BACKUP
}

general_recovery ::=

RECOVER
[ AUTOMATIC ]
[ FROM 'location' ]
{ { full_database_recovery
  | partial_database_recovery
  | LOGFILE 'filename'
  }
  [ { TEST
    | ALLOW integer CORRUPTION
    | parallel_clause
    }...
  ]
| CONTINUE [ DEFAULT ]
| CANCEL
}

full_database_recovery ::=

[ STANDBY ] DATABASE
[ { UNTIL { CANCEL
          | TIME date
          | CHANGE integer
          | CONSISTENT
          }
  | USING BACKUP CONTROLFILE
  | SNAPSHOT TIME date
  }...
]

partial_database_recovery::=

{ TABLESPACE tablespace [, tablespace ]...
| DATAFILE { 'filename' | filenumber }
             [, 'filename' | filenumber ]...
}

parallel_clause::=

{ NOPARALLEL | PARALLEL [ integer ] }

managed_standby_recovery::=

RECOVER
{ MANAGED STANDBY DATABASE
    [ { USING ARCHIVED LOGFILE
      | DISCONNECT [FROM SESSION]
      | NODELAY
      | UNTIL CHANGE integer
      | UNTIL CONSISTENT
      | parallel_clause
      }...
    | FINISH
    | CANCEL
    ]
| TO LOGICAL STANDBY { db_name | KEEP IDENTITY }
}

database_file_clauses ::=

{ RENAME FILE  'filename' [, 'filename' ]...
   TO 'filename'
| create_datafile_clause
| alter_datafile_clause
| alter_tempfile_clause
| move_datafile_clause
}

create_datafile_clause::=

CREATE DATAFILE
   { 'filename' | filenumber }
     [, 'filename' | filenumber ]...
   }
   [ AS { file_specification
          [, file_specification ]...
        | NEW
        }
   ]

alter_datafile_clause::=

DATAFILE
   { 'filename' | filenumber }
     [, 'filename' | filenumber ]...
   }
   { ONLINE
   | OFFLINE [ FOR DROP ]
   | RESIZE size_clause
   | autoextend_clause
   | END BACKUP
   }

alter_tempfile_clause::=

TEMPFILE
   { 'filename' [, 'filename' ]...
   | filenumber [, filenumber ]...
   }
   { RESIZE size_clause
   | autoextend_clause
   | DROP [ INCLUDING DATAFILES ]
   | ONLINE
   | OFFLINE
   }

move_datafile_clause::=

MOVE DATAFILE ( 'filename' | 'ASM_filename' | file_number )
 [ TO ( 'filename' | 'ASM_filename' ) ]
 [ REUSE ] [ KEEP ]

Název_souboru ASM::=

{ fully_qualified_file_name
| numeric_file_name
| incomplete_file_name
| alias_file_name
}

autoextend_clause ::=

AUTOEXTEND
   { OFF
   | ON [ NEXT size_clause ]
        [ maxsize_clause ]
   }

maxsize_clause::=

MAXSIZE { UNLIMITED | size_clause }

logfile_clauses ::=

{ { ARCHIVELOG [ MANUAL ]
  | NOARCHIVELOG
  }
| [ NO ] FORCE LOGGING
| RENAME FILE 'filename' [, 'filename' ]...
    TO 'filename'
| CLEAR [ UNARCHIVED ]
    LOGFILE logfile_descriptor [, logfile_descriptor ]...
    [ UNRECOVERABLE DATAFILE ]
| add_logfile_clauses
| drop_logfile_clauses
| switch_logfile_clause
| supplemental_db_logging
}

add_logfile_clauses::=

ADD [ STANDBY ] LOGFILE
   { 
     { [ INSTANCE 'instance_name' ] | [ THREAD 'integer' ] }
     [ GROUP integer ] redo_log_file_spec
       [, [ GROUP integer ] redo_log_file_spec ]...
   | MEMBER 'filename' [ REUSE ] [, 'filename' [ REUSE ] ]...
        TO logfile_descriptor [, logfile_descriptor ]...
   }

drop_logfile_clauses::=

DROP [ STANDBY ] LOGFILE
   { logfile_descriptor
     [, logfile_descriptor ]...
   | MEMBER 'filename'
            [, 'filename' ]...
   }

switch_logfile_clause::=

SWITCH ALL LOGFILES TO BLOCKSIZE integer

supplemental_db_logging ::=

{ ADD | DROP } SUPPLEMENTAL LOG
{ DATA
| supplemental_id_key_clause
| supplemental_plsql_clause
}

supplemental_id_key_clause::=

DATA
( { ALL | PRIMARY KEY | UNIQUE | FOREIGN KEY }
    [, { ALL | PRIMARY KEY | UNIQUE | FOREIGN KEY } ]...
)
COLUMNS

supplemental_plsql_clause::=

DATA FOR PROCEDURAL REPLICATION

logfile_descriptor::=

{ GROUP integer
| ('filename' [, 'filename' ]...)
| 'filename'
}

klauzuly_controlfile ::=

CREATE { [ LOGICAL | PHYSICAL ] STANDBY | FAR SYNC INSTANCE }
  CONTROLFILE AS
  'filename' [ REUSE ]
| BACKUP CONTROLFILE TO
  { 'filename' [ REUSE ]
  | trace_file_clause
  }

standby_database_clauses ::=

{ { activate_standby_db_clause
| maximize_standby_db_clause
| register_logfile_clause
| commit_switchover_clause
| start_standby_clause
| stop_standby_clause
| convert_database_clause
} [ parallel_clause ] }
|
{ switchover_clause | failover_clause }

activate_standby_db_clause::=

ACTIVATE
     [ PHYSICAL | LOGICAL ]
     STANDBY DATABASE
     [ FINISH APPLY ]

maximize_standby_db_clause::=

SET STANDBY DATABASE TO MAXIMIZE
{ PROTECTION | AVAILABILITY | PERFORMANCE }

register_logfile_clause::=

REGISTER [ OR REPLACE ]
  [ PHYSICAL | LOGICAL ]
LOGFILE [ file_specification  [, file_specification ]...
  [ FOR logminer_session_name ]

přepínací_klauzule::=

SWITCHOVER TO target_db_name [ VERIFY | FORCE ]

klauzule o převzetí služeb při selhání::=

FAILOVER TO target_db_name [ FORCE ]

commit_switchover_clause::=

{ PREPARE | COMMIT } TO SWITCHOVER
[ TO { { [ PHYSICAL | LOGICAL ] PRIMARY
     | [ PHYSICAL ] STANDBY
     } [ { WITH | WITHOUT } SESSION SHUTDOWN
         { WAIT | NOWAIT }
       ]
     | LOGICAL STANDBY
     }
| CANCEL
]

start_standby_clause::=

START LOGICAL STANDBY APPLY
[ IMMEDIATE ]
[ NODELAY ]
[ NEW PRIMARY dblink
| INITIAL [ scn_value ]
| { SKIP FAILED TRANSACTION | FINISH }
]

stop_standby_clause::=

{ STOP | ABORT } LOGICAL STANDBY APPLY

convert_database_clause::=

CONVERT TO ( PHYSICAL | SNAPSHOT ) STANDBY

default_settings_clauses::=

{ DEFAULT EDITION = edition_name
| SET DEFAULT { BIGFILE | SMALLFILE } TABLESPACE
| DEFAULT TABLESPACE tablespace
| DEFAULT TEMPORARY TABLESPACE { tablespace | tablespace_group_name }
| RENAME GLOBAL_NAME TO database.domain [.domain ]...
| ENABLE BLOCK CHANGE TRACKING [ USING FILE 'filename' [ REUSE ] ]
| DISABLE BLOCK CHANGE TRACKING
| [NO] FORCE FULL DATABASE CACHING
| flashback_mode_clause
| set_time_zone_clause
}

set_time_zone_clause::=

SET TIME_ZONE =
   '{ { + | - } hh : mi | time_zone_region }'

flashback_mode_clause ::=

FLASHBACK { ON | OFF }

instance_clauses::=

{ ENABLE | DISABLE } INSTANCE 'instance_name'

bezpečnostní_klauzule ::=

GUARD { ALL | STANDBY | NONE }

Použití GUI

Většina DBMS umožňuje měnit databáze pomocí GUI. Může se jednat o grafické uživatelské rozhraní dodané s produktem nebo o grafické rozhraní vyvinuté třetí stranou. Například  MySQL Workbench je nástroj GUI, který lze použít s MySQL.