| Server IP : 103.119.228.120 / Your IP : 18.221.167.11 Web Server : Apache System : Linux v8.techscape8.com 3.10.0-1160.119.1.el7.tuxcare.els2.x86_64 #1 SMP Mon Jul 15 12:09:18 UTC 2024 x86_64 User : nobody ( 99) PHP Version : 5.6.40 Disable Function : shell_exec,symlink,system,exec,proc_get_status,proc_nice,proc_terminate,define_syslog_variables,syslog,openlog,closelog,escapeshellcmd,passthru,ocinum cols,ini_alter,leak,listen,chgrp,apache_note,apache_setenv,debugger_on,debugger_off,ftp_exec,dl,dll,myshellexec,proc_open,socket_bind,proc_close,escapeshellarg,parse_ini_filepopen,fpassthru,exec,passthru,escapeshellarg,escapeshellcmd,proc_close,proc_open,ini_alter,popen,show_source,proc_nice,proc_terminate,proc_get_status,proc_close,pfsockopen,leak,apache_child_terminate,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,dl,symlink,shell_exec,system,dl,passthru,escapeshellarg,escapeshellcmd,myshellexec,c99_buff_prepare,c99_sess_put,fpassthru,getdisfunc,fx29exec,fx29exec2,is_windows,disp_freespace,fx29sh_getupdate,fx29_buff_prepare,fx29_sess_put,fx29shexit,fx29fsearch,fx29ftpbrutecheck,fx29sh_tools,fx29sh_about,milw0rm,imagez,sh_name,myshellexec,checkproxyhost,dosyayicek,c99_buff_prepare,c99_sess_put,c99getsource,c99sh_getupdate,c99fsearch,c99shexit,view_perms,posix_getpwuid,posix_getgrgid,posix_kill,parse_perms,parsesort,view_perms_color,set_encoder_input,ls_setcheckboxall,ls_reverse_all,rsg_read,rsg_glob,selfURL,dispsecinfo,unix2DosTime,addFile,system,get_users,view_size,DirFiles,DirFilesWide,DirPrintHTMLHeaders,GetFilesTotal,GetTitles,GetTimeTotal,GetMatchesCount,GetFileMatchesCount,GetResultFiles,fs_copy_dir,fs_copy_obj,fs_move_dir,fs_move_obj,fs_rmdir,SearchText,getmicrotime MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/local/ssl/local/ssl/local/ssl/share/doc/postgresql-9.2.24/html/ |
Upload File : |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>CREATE SCHEMA</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.2.24 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="SQL Commands"
HREF="sql-commands.html"><LINK
REL="PREVIOUS"
TITLE="CREATE RULE"
HREF="sql-createrule.html"><LINK
REL="NEXT"
TITLE="CREATE SEQUENCE"
HREF="sql-createsequence.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2017-11-06T22:43:11"></HEAD
><BODY
CLASS="REFENTRY"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.2.24 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="CREATE RULE"
HREF="sql-createrule.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="sql-commands.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="CREATE SEQUENCE"
HREF="sql-createsequence.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="SQL-CREATESCHEMA"
></A
>CREATE SCHEMA</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN70147"
></A
><H2
>Name</H2
>CREATE SCHEMA -- define a new schema</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN70152"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>CREATE SCHEMA <TT
CLASS="REPLACEABLE"
><I
>schema_name</I
></TT
> [ AUTHORIZATION <TT
CLASS="REPLACEABLE"
><I
>user_name</I
></TT
> ] [ <TT
CLASS="REPLACEABLE"
><I
>schema_element</I
></TT
> [ ... ] ]
CREATE SCHEMA AUTHORIZATION <TT
CLASS="REPLACEABLE"
><I
>user_name</I
></TT
> [ <TT
CLASS="REPLACEABLE"
><I
>schema_element</I
></TT
> [ ... ] ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70159"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>CREATE SCHEMA</TT
> enters a new schema
into the current database.
The schema name must be distinct from the name of any existing schema
in the current database.
</P
><P
> A schema is essentially a namespace:
it contains named objects (tables, data types, functions, and operators)
whose names can duplicate those of other objects existing in other
schemas. Named objects are accessed either by <SPAN
CLASS="QUOTE"
>"qualifying"</SPAN
>
their names with the schema name as a prefix, or by setting a search
path that includes the desired schema(s). A <TT
CLASS="LITERAL"
>CREATE</TT
> command
specifying an unqualified object name creates the object
in the current schema (the one at the front of the search path,
which can be determined with the function <CODE
CLASS="FUNCTION"
>current_schema</CODE
>).
</P
><P
> Optionally, <TT
CLASS="COMMAND"
>CREATE SCHEMA</TT
> can include subcommands
to create objects within the new schema. The subcommands are treated
essentially the same as separate commands issued after creating the
schema, except that if the <TT
CLASS="LITERAL"
>AUTHORIZATION</TT
> clause is used,
all the created objects will be owned by that user.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70170"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>schema_name</I
></TT
></DT
><DD
><P
> The name of a schema to be created. If this is omitted, the
<TT
CLASS="REPLACEABLE"
><I
>user_name</I
></TT
>
is used as the schema name. The name cannot
begin with <TT
CLASS="LITERAL"
>pg_</TT
>, as such names
are reserved for system schemas.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>user_name</I
></TT
></DT
><DD
><P
> The role name of the user who will own the new schema. If omitted,
defaults to the user executing the command. To create a schema
owned by another role, you must be a direct or indirect member of
that role, or be a superuser.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>schema_element</I
></TT
></DT
><DD
><P
> An SQL statement defining an object to be created within the
schema. Currently, only <TT
CLASS="COMMAND"
>CREATE
TABLE</TT
>, <TT
CLASS="COMMAND"
>CREATE VIEW</TT
>, <TT
CLASS="COMMAND"
>CREATE
INDEX</TT
>, <TT
CLASS="COMMAND"
>CREATE SEQUENCE</TT
>, <TT
CLASS="COMMAND"
>CREATE
TRIGGER</TT
> and <TT
CLASS="COMMAND"
>GRANT</TT
> are accepted as clauses
within <TT
CLASS="COMMAND"
>CREATE SCHEMA</TT
>. Other kinds of objects may
be created in separate commands after the schema is created.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70197"
></A
><H2
>Notes</H2
><P
> To create a schema, the invoking user must have the
<TT
CLASS="LITERAL"
>CREATE</TT
> privilege for the current database.
(Of course, superusers bypass this check.)
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70201"
></A
><H2
>Examples</H2
><P
> Create a schema:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE SCHEMA myschema;</PRE
><P>
</P
><P
> Create a schema for user <TT
CLASS="LITERAL"
>joe</TT
>; the schema will also be
named <TT
CLASS="LITERAL"
>joe</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE SCHEMA AUTHORIZATION joe;</PRE
><P>
</P
><P
> Create a schema and create a table and view within it:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE SCHEMA hollywood
CREATE TABLE films (title text, release date, awards text[])
CREATE VIEW winners AS
SELECT title, release FROM films WHERE awards IS NOT NULL;</PRE
><P>
Notice that the individual subcommands do not end with semicolons.
</P
><P
> The following is an equivalent way of accomplishing the same result:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE SCHEMA hollywood;
CREATE TABLE hollywood.films (title text, release date, awards text[]);
CREATE VIEW hollywood.winners AS
SELECT title, release FROM hollywood.films WHERE awards IS NOT NULL;</PRE
><P></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70213"
></A
><H2
>Compatibility</H2
><P
> The SQL standard allows a <TT
CLASS="LITERAL"
>DEFAULT CHARACTER SET</TT
> clause
in <TT
CLASS="COMMAND"
>CREATE SCHEMA</TT
>, as well as more subcommand
types than are presently accepted by
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>.
</P
><P
> The SQL standard specifies that the subcommands in <TT
CLASS="COMMAND"
>CREATE
SCHEMA</TT
> can appear in any order. The present
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> implementation does not
handle all cases of forward references in subcommands; it might
sometimes be necessary to reorder the subcommands in order to avoid
forward references.
</P
><P
> According to the SQL standard, the owner of a schema always owns
all objects within it. <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
allows schemas to contain objects owned by users other than the
schema owner. This can happen only if the schema owner grants the
<TT
CLASS="LITERAL"
>CREATE</TT
> privilege on his schema to someone else, or a
superuser chooses to create objects in it.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN70225"
></A
><H2
>See Also</H2
><A
HREF="sql-alterschema.html"
>ALTER SCHEMA</A
>, <A
HREF="sql-dropschema.html"
>DROP SCHEMA</A
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="sql-createrule.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="sql-createsequence.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>CREATE RULE</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="sql-commands.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>CREATE SEQUENCE</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>