1998-09-07 17:58:31 +02:00
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<REFENTRY ID="SQL-ALTERUSER">
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1998-05-13 07:34:00 +02:00
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<REFMETA>
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<REFENTRYTITLE>
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ALTER USER
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</REFENTRYTITLE>
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<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
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</REFMETA>
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<REFNAMEDIV>
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<REFNAME>
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ALTER USER
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</REFNAME>
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<REFPURPOSE>
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Modifies user account information
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</REFPURPOSE>
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1998-12-29 03:24:47 +01:00
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</refnamediv>
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1998-05-13 07:34:00 +02:00
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<REFSYNOPSISDIV>
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<REFSYNOPSISDIVINFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSYNOPSISDIVINFO>
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<synopsis>
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1998-09-16 16:43:12 +02:00
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ALTER USER <replaceable class="PARAMETER">username</replaceable>
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[ WITH PASSWORD <replaceable class="PARAMETER">password</replaceable> ]
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[ CREATEDB | NOCREATEDB ]
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[ CREATEUSER | NOCREATEUSER ]
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[ IN GROUP <replaceable class="PARAMETER">groupname</replaceable> [, ...] ]
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[ VALID UNTIL '<replaceable class="PARAMETER">abstime</replaceable>' ]
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1998-05-13 07:34:00 +02:00
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</synopsis>
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<REFSECT2 ID="R2-SQL-ALTERUSER-1">
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<REFSECT2INFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSECT2INFO>
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<TITLE>
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Inputs
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</TITLE>
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<PARA>
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1998-09-16 16:43:12 +02:00
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Refer to <command>CREATE USER</command> for a detailed description of each
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1998-05-13 07:34:00 +02:00
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clause.
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</para>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<REPLACEABLE CLASS="PARAMETER"> username </REPLACEABLE>
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</TERM>
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<LISTITEM>
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<PARA>
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The Postgres account name of the user whose details are to be altered.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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1998-09-16 16:43:12 +02:00
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1998-05-13 07:34:00 +02:00
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<VARLISTENTRY>
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<TERM>
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<REPLACEABLE CLASS="PARAMETER"> password </REPLACEABLE>
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</TERM>
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<LISTITEM>
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<PARA>
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The new password to be used for this account.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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1998-09-16 16:43:12 +02:00
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1998-05-13 07:34:00 +02:00
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<VARLISTENTRY>
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<TERM>
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<REPLACEABLE CLASS="PARAMETER"> groupname </REPLACEABLE>
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</TERM>
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<LISTITEM>
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<PARA>
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The name of an access group into which this account is to be put.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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1998-09-16 16:43:12 +02:00
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1998-05-13 07:34:00 +02:00
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<VARLISTENTRY>
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<TERM>
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<REPLACEABLE CLASS="PARAMETER"> abstime </REPLACEABLE>
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</TERM>
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<LISTITEM>
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<PARA>
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1998-09-16 16:43:12 +02:00
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The date (and, optionally, the time)
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at which this user's access is to be terminated.
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1998-05-13 07:34:00 +02:00
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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</VARIABLELIST>
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</REFSECT2>
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<REFSECT2 ID="R2-SQL-ALTERUSER-2">
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<REFSECT2INFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSECT2INFO>
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<TITLE>
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Outputs
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</TITLE>
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1998-12-29 03:24:47 +01:00
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<PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<returnvalue>ALTER USER</returnvalue>
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</TERM>
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<LISTITEM>
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<PARA>
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Message returned if the alteration was successful.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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<VARLISTENTRY>
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<TERM>
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<returnvalue>ERROR: alterUser: user "username" does not exist</returnvalue>
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</TERM>
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<LISTITEM>
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<PARA>
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Error message returned if the user specified doesn't
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exist.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</REFSECT2>
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</REFSYNOPSISDIV>
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1998-05-13 07:34:00 +02:00
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<REFSECT1 ID="R1-SQL-ALTERUSER-1">
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<REFSECT1INFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSECT1INFO>
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<TITLE>
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Description
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</TITLE>
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<PARA>
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1998-09-16 16:43:12 +02:00
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<command>ALTER USER</command> is used to change the attributes of a user's
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<productname>Postgres</productname> account.
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Please note that it is not possible
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1998-05-13 07:34:00 +02:00
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to alter a user's "usesysid" via the alter user
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1998-09-16 16:43:12 +02:00
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statement. Also, it is only possible for the
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<productname>Postgres</productname>
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1998-05-13 07:34:00 +02:00
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user or any user with read and modify permissions on
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"pg_shadow" to alter user passwords.
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</PARA>
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<para>
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If any of the clauses of the alter user statement are
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omitted, the corresponding value in the "pg_shadow" table
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is left unchanged.
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</para>
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<REFSECT2 ID="R2-SQL-ALTERUSER-3">
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<REFSECT2INFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSECT2INFO>
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<TITLE>
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Notes
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</TITLE>
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<PARA>
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1998-09-16 16:43:12 +02:00
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<command>ALTER USER</command> statement
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is a <productname>Postgres</productname>
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language extension.
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1998-05-13 07:34:00 +02:00
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</para>
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<para>
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1998-09-16 16:43:12 +02:00
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Refer to <command>CREATE/DROP USER</command>
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to create or remove a user
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1998-05-13 07:34:00 +02:00
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account.
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</para>
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<para>
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1998-09-16 16:43:12 +02:00
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In the current release (v6.4), the IN GROUP clause is parsed
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but has no affect. When it is fully implemented, it is
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1998-05-13 07:34:00 +02:00
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intended to modify the pg_group relation.
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</para>
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</REFSECT2>
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</refsect1>
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<REFSECT1 ID="R1-SQL-ALTERUSER-2">
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<TITLE>
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Usage
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</TITLE>
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<PARA>
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Change a user password
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</PARA>
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<ProgramListing>
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1998-09-16 16:43:12 +02:00
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ALTER USER davide WITH PASSWORD hu8jmn3;
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1998-05-13 07:34:00 +02:00
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</ProgramListing>
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<para>
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Change a user's valid until date
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</para>
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<ProgramListing>
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1998-09-16 16:43:12 +02:00
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ALTER USER manuel VALID UNTIL 'Jan 31 2030';
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1998-05-13 07:34:00 +02:00
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</ProgramListing>
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<para>
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Change a user's valid until date, specifying that his
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authorisation should expire at midday on 4th May 1998 using
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the time zone which is one hour ahead of UTC
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</para>
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<ProgramListing>
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1998-09-16 16:43:12 +02:00
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ALTER USER chris VALID UNTIL 'May 4 12:00:00 1998 +1';
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1998-05-13 07:34:00 +02:00
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</ProgramListing>
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<para>
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Give a user the ability to create other users and new databases.
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</para>
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<programlisting>
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1998-09-16 16:43:12 +02:00
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ALTER USER miriam CREATEUSER CREATEDB;
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1998-05-13 07:34:00 +02:00
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</programlisting>
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<para>
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Place a user in two groups
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</para>
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<programlisting>
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1998-09-16 16:43:12 +02:00
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ALTER USER miriam IN GROUP sales, payroll;
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1998-05-13 07:34:00 +02:00
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</programlisting>
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</REFSECT1>
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<REFSECT1 ID="R1-SQL-ALTERUSER-3">
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<TITLE>
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Compatibility
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</TITLE>
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<PARA>
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</PARA>
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<REFSECT2 ID="R2-SQL-ALTERUSER-4">
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<REFSECT2INFO>
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1998-09-16 16:43:12 +02:00
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<DATE>1998-09-08</DATE>
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1998-05-13 07:34:00 +02:00
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</REFSECT2INFO>
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<TITLE>
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SQL92
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</TITLE>
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<PARA>
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1998-09-16 16:43:12 +02:00
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There is no <command>ALTER USER</command> statement in
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<acronym>SQL92</acronym>.
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The standard leaves
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1998-05-13 07:34:00 +02:00
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the definition of users to the implementation.
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</PARA>
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1998-12-29 03:24:47 +01:00
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</refsect2>
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1998-05-13 07:34:00 +02:00
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</refsect1>
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</REFENTRY>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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