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📄 ABORT.7(2.17 KB)
📄 ALTER_AGGREGATE.7(4.97 KB)
📄 ALTER_COLLATION.7(2.8 KB)
📄 ALTER_CONVERSION.7(2.89 KB)
📄 ALTER_DATABASE.7(5.71 KB)
📄 ALTER_DEFAULT_PRIVILEGES.7(6.34 KB)
📄 ALTER_DOMAIN.7(6.96 KB)
📄 ALTER_EVENT_TRIGGER.7(2.42 KB)
📄 ALTER_EXTENSION.7(6.89 KB)
📄 ALTER_FOREIGN_DATA_WRAPPER.7(4.56 KB)
📄 ALTER_FOREIGN_TABLE.7(12.8 KB)
📄 ALTER_FUNCTION.7(8.26 KB)
📄 ALTER_GROUP.7(3.08 KB)
📄 ALTER_INDEX.7(5.59 KB)
📄 ALTER_LANGUAGE.7(2.1 KB)
📄 ALTER_LARGE_OBJECT.7(1.97 KB)
📄 ALTER_MATERIALIZED_VIEW.7(4.66 KB)
📄 ALTER_OPERATOR.7(3.67 KB)
📄 ALTER_OPERATOR_CLASS.7(2.86 KB)
📄 ALTER_OPERATOR_FAMILY.7(9.12 KB)
📄 ALTER_POLICY.7(2.88 KB)
📄 ALTER_ROLE.7(9.04 KB)
📄 ALTER_RULE.7(2.21 KB)
📄 ALTER_SCHEMA.7(2.31 KB)
📄 ALTER_SEQUENCE.7(7.53 KB)
📄 ALTER_SERVER.7(3.41 KB)
📄 ALTER_SYSTEM.7(3.8 KB)
📄 ALTER_TABLE.7(35.2 KB)
📄 ALTER_TABLESPACE.7(3.35 KB)
📄 ALTER_TEXT_SEARCH_CONFIGURATION.7(4.79 KB)
📄 ALTER_TEXT_SEARCH_DICTIONARY.7(4.02 KB)
📄 ALTER_TEXT_SEARCH_PARSER.7(2.23 KB)
📄 ALTER_TEXT_SEARCH_TEMPLATE.7(2.26 KB)
📄 ALTER_TRIGGER.7(2.98 KB)
📄 ALTER_TYPE.7(7.15 KB)
📄 ALTER_USER.7(2.66 KB)
📄 ALTER_USER_MAPPING.7(3.26 KB)
📄 ALTER_VIEW.7(4.67 KB)
📄 ANALYZE.7(7.67 KB)
📄 BEGIN.7(4.06 KB)
📄 CHECKPOINT.7(2.29 KB)
📄 CLOSE.7(2.72 KB)
📄 CLUSTER.7(6.23 KB)
📄 COMMENT.7(10.2 KB)
📄 COMMIT.7(2.1 KB)
📄 COMMIT_PREPARED.7(2.58 KB)
📄 COPY.7(29.88 KB)
📄 CREATE_ACCESS_METHOD.7(2.9 KB)
📄 CREATE_AGGREGATE.7(23.35 KB)
📄 CREATE_CAST.7(13.55 KB)
📄 CREATE_COLLATION.7(3.97 KB)
📄 CREATE_CONVERSION.7(3.78 KB)
📄 CREATE_DATABASE.7(8.48 KB)
📄 CREATE_DOMAIN.7(6.52 KB)
📄 CREATE_EVENT_TRIGGER.7(3.74 KB)
📄 CREATE_EXTENSION.7(6.57 KB)
📄 CREATE_FOREIGN_DATA_WRAPPER.7(4.96 KB)
📄 CREATE_FOREIGN_TABLE.7(9 KB)
📄 CREATE_FUNCTION.7(24.73 KB)
📄 CREATE_GROUP.7(2.11 KB)
📄 CREATE_INDEX.7(19.56 KB)
📄 CREATE_LANGUAGE.7(9.83 KB)
📄 CREATE_MATERIALIZED_VIEW.7(4.21 KB)
📄 CREATE_OPERATOR.7(6.88 KB)
📄 CREATE_OPERATOR_CLASS.7(8.52 KB)
📄 CREATE_OPERATOR_FAMILY.7(3.6 KB)
📄 CREATE_POLICY.7(15.92 KB)
📄 CREATE_ROLE.7(12.69 KB)
📄 CREATE_RULE.7(8.63 KB)
📄 CREATE_SCHEMA.7(6.15 KB)
📄 CREATE_SEQUENCE.7(9.79 KB)
📄 CREATE_SERVER.7(3.63 KB)
📄 CREATE_TABLE.7(42.1 KB)
📄 CREATE_TABLESPACE.7(4.47 KB)
📄 CREATE_TABLE_AS.7(7.8 KB)
📄 CREATE_TEXT_SEARCH_CONFIGURATION.7(3.19 KB)
📄 CREATE_TEXT_SEARCH_DICTIONARY.7(3.34 KB)
📄 CREATE_TEXT_SEARCH_PARSER.7(3.56 KB)
📄 CREATE_TEXT_SEARCH_TEMPLATE.7(3.38 KB)
📄 CREATE_TRANSFORM.7(5.79 KB)
📄 CREATE_TRIGGER.7(16.3 KB)
📄 CREATE_TYPE.7(28.96 KB)
📄 CREATE_USER.7(2.45 KB)
📄 CREATE_USER_MAPPING.7(3.27 KB)
📄 CREATE_VIEW.7(14.63 KB)
📄 DEALLOCATE.7(1.98 KB)
📄 DECLARE.7(10.22 KB)
📄 DELETE.7(7.36 KB)
📄 DISCARD.7(2.81 KB)
📄 DO.7(3.08 KB)
📄 DROP_ACCESS_METHOD.7(2.35 KB)
📄 DROP_AGGREGATE.7(3.8 KB)
📄 DROP_CAST.7(2.26 KB)
📄 DROP_COLLATION.7(2.42 KB)
📄 DROP_CONVERSION.7(2.36 KB)
📄 DROP_DATABASE.7(2.38 KB)
📄 DROP_DOMAIN.7(2.34 KB)
📄 DROP_EVENT_TRIGGER.7(2.38 KB)
📄 DROP_EXTENSION.7(2.73 KB)
📄 DROP_FOREIGN_DATA_WRAPPER.7(2.61 KB)
📄 DROP_FOREIGN_TABLE.7(2.59 KB)
📄 DROP_FUNCTION.7(3.35 KB)
📄 DROP_GROUP.7(1.57 KB)
📄 DROP_INDEX.7(3.08 KB)
📄 DROP_LANGUAGE.7(2.86 KB)
📄 DROP_MATERIALIZED_VIEW.7(2.64 KB)
📄 DROP_OPERATOR.7(3.01 KB)
📄 DROP_OPERATOR_CLASS.7(3.48 KB)
📄 DROP_OPERATOR_FAMILY.7(3.24 KB)
📄 DROP_OWNED.7(3.14 KB)
📄 DROP_POLICY.7(2.53 KB)
📄 DROP_ROLE.7(3.05 KB)
📄 DROP_RULE.7(2.35 KB)
📄 DROP_SCHEMA.7(2.76 KB)
📄 DROP_SEQUENCE.7(2.46 KB)
📄 DROP_SERVER.7(2.39 KB)
📄 DROP_TABLE.7(2.97 KB)
📄 DROP_TABLESPACE.7(2.48 KB)
📄 DROP_TEXT_SEARCH_CONFIGURATION.7(2.83 KB)
📄 DROP_TEXT_SEARCH_DICTIONARY.7(2.75 KB)
📄 DROP_TEXT_SEARCH_PARSER.7(2.66 KB)
📄 DROP_TEXT_SEARCH_TEMPLATE.7(2.69 KB)
📄 DROP_TRANSFORM.7(2.59 KB)
📄 DROP_TRIGGER.7(2.6 KB)
📄 DROP_TYPE.7(2.53 KB)
📄 DROP_USER.7(1.65 KB)
📄 DROP_USER_MAPPING.7(2.56 KB)
📄 DROP_VIEW.7(2.43 KB)
📄 END.7(2.19 KB)
📄 EXECUTE.7(2.9 KB)
📄 EXPLAIN.7(13.03 KB)
📄 FETCH.7(8.48 KB)
📄 GRANT.7(21.29 KB)
📄 IMPORT_FOREIGN_SCHEMA.7(3.98 KB)
📄 INSERT.7(19.61 KB)
📄 LISTEN.7(3.51 KB)
📄 LOAD.7(2.54 KB)
📄 LOCK.7(8.01 KB)
📄 MOVE.7(2.92 KB)
📄 NOTIFY.7(8.21 KB)
📄 PREPARE.7(8.2 KB)
📄 PREPARE_TRANSACTION.7(5.74 KB)
📄 REASSIGN_OWNED.7(3.01 KB)
📄 REFRESH_MATERIALIZED_VIEW.7(3.92 KB)
📄 REINDEX.7(7.69 KB)
📄 RELEASE_SAVEPOINT.7(3 KB)
📄 RESET.7(2.93 KB)
📄 REVOKE.7(10.44 KB)
📄 ROLLBACK.7(2.09 KB)
📄 ROLLBACK_PREPARED.7(2.6 KB)
📄 ROLLBACK_TO_SAVEPOINT.7(3.94 KB)
📄 SAVEPOINT.7(3.5 KB)
📄 SECURITY_LABEL.7(5.39 KB)
📄 SELECT.7(63.33 KB)
📄 SELECT_INTO.7(4.37 KB)
📄 SET.7(7.57 KB)
📄 SET_CONSTRAINTS.7(4.48 KB)
📄 SET_ROLE.7(4.36 KB)
📄 SET_SESSION_AUTHORIZATION.7(3.88 KB)
📄 SET_TRANSACTION.7(8.27 KB)
📄 SHOW.7(4.22 KB)
📄 START_TRANSACTION.7(2.9 KB)
📄 TABLE.7(18 B)
📄 TRUNCATE.7(6.39 KB)
📄 UNLISTEN.7(2.75 KB)
📄 UPDATE.7(12.26 KB)
📄 VACUUM.7(7.92 KB)
📄 VALUES.7(6.94 KB)
📄 WITH.7(18 B)

Editing: CREATE_DATABASE.7

'\" t
.\"     Title: CREATE DATABASE
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 2018
.\"    Manual: PostgreSQL 9.6.9 Documentation
.\"    Source: PostgreSQL 9.6.9
.\"  Language: English
.\"
.TH "CREATE DATABASE" "7" "2018" "PostgreSQL 9.6.9" "PostgreSQL 9.6.9 Documentation"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
CREATE_DATABASE \- create a new database
.SH "SYNOPSIS"
.sp
.nf
CREATE DATABASE \fIname\fR
    [ [ WITH ] [ OWNER [=] \fIuser_name\fR ]
           [ TEMPLATE [=] \fItemplate\fR ]
           [ ENCODING [=] \fIencoding\fR ]
           [ LC_COLLATE [=] \fIlc_collate\fR ]
           [ LC_CTYPE [=] \fIlc_ctype\fR ]
           [ TABLESPACE [=] \fItablespace_name\fR ]
           [ ALLOW_CONNECTIONS [=] \fIallowconn\fR ]
           [ CONNECTION LIMIT [=] \fIconnlimit\fR ]
           [ IS_TEMPLATE [=] \fIistemplate\fR ] ]
.fi
.SH "DESCRIPTION"
.PP
\fBCREATE DATABASE\fR
creates a new
PostgreSQL
database\&.
.PP
To create a database, you must be a superuser or have the special
CREATEDB
privilege\&. See
CREATE USER (\fBCREATE_USER\fR(7))\&.
.PP
By default, the new database will be created by cloning the standard system database
template1\&. A different template can be specified by writing
TEMPLATE \fIname\fR\&. In particular, by writing
TEMPLATE template0, you can create a virgin database containing only the standard objects predefined by your version of
PostgreSQL\&. This is useful if you wish to avoid copying any installation\-local objects that might have been added to
template1\&.
.SH "PARAMETERS"
.PP
\fIname\fR
.RS 4
The name of a database to create\&.
.RE
.PP
\fIuser_name\fR
.RS 4
The role name of the user who will own the new database, or
DEFAULT
to use the default (namely, the user executing the command)\&. To create a database owned by another role, you must be a direct or indirect member of that role, or be a superuser\&.
.RE
.PP
\fItemplate\fR
.RS 4
The name of the template from which to create the new database, or
DEFAULT
to use the default template (template1)\&.
.RE
.PP
\fIencoding\fR
.RS 4
Character set encoding to use in the new database\&. Specify a string constant (e\&.g\&.,
\*(AqSQL_ASCII\*(Aq), or an integer encoding number, or
DEFAULT
to use the default encoding (namely, the encoding of the template database)\&. The character sets supported by the
PostgreSQL
server are described in
Section 23.3.1, \(lqSupported Character Sets\(rq, in the documentation\&. See below for additional restrictions\&.
.RE
.PP
\fIlc_collate\fR
.RS 4
Collation order (LC_COLLATE) to use in the new database\&. This affects the sort order applied to strings, e\&.g\&. in queries with ORDER BY, as well as the order used in indexes on text columns\&. The default is to use the collation order of the template database\&. See below for additional restrictions\&.
.RE
.PP
\fIlc_ctype\fR
.RS 4
Character classification (LC_CTYPE) to use in the new database\&. This affects the categorization of characters, e\&.g\&. lower, upper and digit\&. The default is to use the character classification of the template database\&. See below for additional restrictions\&.
.RE
.PP
\fItablespace_name\fR
.RS 4
The name of the tablespace that will be associated with the new database, or
DEFAULT
to use the template database\*(Aqs tablespace\&. This tablespace will be the default tablespace used for objects created in this database\&. See
CREATE TABLESPACE (\fBCREATE_TABLESPACE\fR(7))
for more information\&.
.RE
.PP
\fIallowconn\fR
.RS 4
If false then no one can connect to this database\&. The default is true, allowing connections (except as restricted by other mechanisms, such as
GRANT/REVOKE CONNECT)\&.
.RE
.PP
\fIconnlimit\fR
.RS 4
How many concurrent connections can be made to this database\&. \-1 (the default) means no limit\&.
.RE
.PP
\fIistemplate\fR
.RS 4
If true, then this database can be cloned by any user with
CREATEDB
privileges; if false (the default), then only superusers or the owner of the database can clone it\&.
.RE
.PP
Optional parameters can be written in any order, not only the order illustrated above\&.
.SH "NOTES"
.PP
\fBCREATE DATABASE\fR
cannot be executed inside a transaction block\&.
.PP
Errors along the line of
\(lqcould not initialize database directory\(rq
are most likely related to insufficient permissions on the data directory, a full disk, or other file system problems\&.
.PP
Use
DROP DATABASE (\fBDROP_DATABASE\fR(7))
to remove a database\&.
.PP
The program
\fBcreatedb\fR(1)
is a wrapper program around this command, provided for convenience\&.
.PP
Database\-level configuration parameters (set via
ALTER DATABASE (\fBALTER_DATABASE\fR(7))) are not copied from the template database\&.
.PP
Although it is possible to copy a database other than
template1
by specifying its name as the template, this is not (yet) intended as a general\-purpose
\(lq\fBCOPY DATABASE\fR\(rq
facility\&. The principal limitation is that no other sessions can be connected to the template database while it is being copied\&.
\fBCREATE DATABASE\fR
will fail if any other connection exists when it starts; otherwise, new connections to the template database are locked out until
\fBCREATE DATABASE\fR
completes\&. See
Section 22.3, \(lqTemplate Databases\(rq, in the documentation
for more information\&.
.PP
The character set encoding specified for the new database must be compatible with the chosen locale settings (LC_COLLATE
and
LC_CTYPE)\&. If the locale is
C
(or equivalently
POSIX), then all encodings are allowed, but for other locale settings there is only one encoding that will work properly\&. (On Windows, however, UTF\-8 encoding can be used with any locale\&.)
\fBCREATE DATABASE\fR
will allow superusers to specify
SQL_ASCII
encoding regardless of the locale settings, but this choice is deprecated and may result in misbehavior of character\-string functions if data that is not encoding\-compatible with the locale is stored in the database\&.
.PP
The encoding and locale settings must match those of the template database, except when
template0
is used as template\&. This is because other databases might contain data that does not match the specified encoding, or might contain indexes whose sort ordering is affected by
LC_COLLATE
and
LC_CTYPE\&. Copying such data would result in a database that is corrupt according to the new settings\&.
template0, however, is known to not contain any data or indexes that would be affected\&.
.PP
The
CONNECTION LIMIT
option is only enforced approximately; if two new sessions start at about the same time when just one connection
\(lqslot\(rq
remains for the database, it is possible that both will fail\&. Also, the limit is not enforced against superusers or background worker processes\&.
.SH "EXAMPLES"
.PP
To create a new database:
.sp
.if n \{\
.RS 4
.\}
.nf
CREATE DATABASE lusiadas;
.fi
.if n \{\
.RE
.\}
.PP
To create a database
sales
owned by user
salesapp
with a default tablespace of
salesspace:
.sp
.if n \{\
.RS 4
.\}
.nf
CREATE DATABASE sales OWNER salesapp TABLESPACE salesspace;
.fi
.if n \{\
.RE
.\}
.PP
To create a database
music
which supports the ISO\-8859\-1 character set:
.sp
.if n \{\
.RS 4
.\}
.nf
CREATE DATABASE music ENCODING \*(AqLATIN1\*(Aq TEMPLATE template0;
.fi
.if n \{\
.RE
.\}
.sp
In this example, the
TEMPLATE template0
clause would only be required if
template1\*(Aqs encoding is not ISO\-8859\-1\&. Note that changing encoding might require selecting new
LC_COLLATE
and
LC_CTYPE
settings as well\&.
.SH "COMPATIBILITY"
.PP
There is no
\fBCREATE DATABASE\fR
statement in the SQL standard\&. Databases are equivalent to catalogs, whose creation is implementation\-defined\&.
.SH "SEE ALSO"
ALTER DATABASE (\fBALTER_DATABASE\fR(7)), DROP DATABASE (\fBDROP_DATABASE\fR(7))

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