Difference between revisions of "API:EPrints/Database/Oracle"

Latest revision as of 00:00, 12 January 2022

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NAME

EPrints::Database::Oracle - custom database methods for Oracle DB

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DESCRIPTION

Oracle database wrapper for Oracle DB version 9+.

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Synopsis

These settings are the default settings for the free Oracle developer version:

   # Oracle driver settings for database.pl
   $c->{dbdriver} = "Oracle";
   $c->{dbhost} = "localhost";
   $c->{dbsid} = "XE;
   $c->{dbuser} = "HR";
   $c->{dbpass} = "HR";

User Comments

Setting up Oracle

Enable the HR user in Oracle XE.

Set the ORACLE_HOME and ORACLE_SID environment variables. To add these globally edit /etc/profile.d/oracle.sh (for XE edition):

 export ORACLE_HOME="/usr/lib/oracle/xe/app/oracle/product/10.2.0/server"
 export ORACLE_SID="XE"

(Will need to relog to take effect)

User Comments

Oracle-specific Annoyances

Use the GQLPlus wrapper from http://gqlplus.sourceforge.net/ instead of sqlplus.

Oracle will uppercase any identifiers that aren't quoted and is case sensitive, hence mixing quoted and unquoted identifiers will lead to problems.

Oracle does not support LIMIT().

Oracle does not support AUTO_INCREMENT (MySQL) nor SERIAL (Postgres).

Oracle won't ORDER BY LOBS.

Oracle requires special means to insert values into CLOB/BLOB.

Oracle doesn't support AS when aliasing.

When specifying char column lengths use (n char) to define character semantics. Otherwise oracle uses the nls_length_semantics setting to determine whether you meant bytes or characters.

DBD::Oracle can crash when using PERL_USE_SAFE_PUTENV-compiled Perls, see http://www.eprints.org/tech.php/13984.html.

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CONSTANTS

See EPrints::Database.

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INSTANCE VARIABLES

See EPrints::Database.

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METHODS

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connect

$db->connect()

Connects to the database. Also sets LongReadLen to 128*1024.

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prepare_select

$sth = $db->prepare_select( $sql, [ %options ] )

Prepare a SELECT statement $sql and return a handle to it. After preparing a statement use execute() to execute it.

Returns a DBI statement handle.

The LIMIT SQL keyword is not universally supported, to specify this use the limit option.

Options:

   limit - limit the number of rows returned
   offset - return limit number of rows after offset

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create_archive_tables

$success = $db->create_archive_tables()

Creates all the SQL tables for all datasets.

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get_server_version

$version = $db->get_server_version

Returns the database server version.

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get_column_type

$real_type = $db->get_column_type( $name, $type, $not_null, [ $length ] )

Returns a SQL column definition for $name of type $type. If $not_null is true the column will be set to NOT NULL. For column types that require a length use $length.

$type is the SQL type. The types are constants defined by this module, to import them use:

 use EPrints::Database qw( :sql_types );

Supported types (n = requires LENGTH argument):

Character data: SQL_VARCHAR(n), SQL_LONGVARCHAR.

Binary data: SQL_VARBINARY(n), SQL_LONGVARBINARY.

Integer data: SQL_TINYINT, SQL_SMALLINT, SQL_INTEGER,

Floating-point data: SQL_REAL, SQL_DOUBLE.

Time data: SQL_DATE, SQL_TIME.

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get_tables

@tables = $db->get_tables

Return a list of all the tables in the database.

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has_sequence

$boolean = $db->has_sequence( $name )

Return true if a sequence of the given $<name> exists in the database.

User Comments

has_column

$boolean = $db->has_column( $table, $column )

Return true if the named database $table has the named $column.

Default method from EPrints::Database this is really slow and this is much faster.

User Comments

has_table

$boolean = $db->has_table( $table )

Returns boolean dependent on whether the named $table exists in the database.

User Comments

counter_current

$n = $db->counter_current( $counter )

Return the value of the previous counter_next on $counter.

Oracle doesn't support getting the current value of a sequence so this method always returns undef.

User Comments

quote_identifier

$id = $db->quote_identifier( @columns )

This method quotes and returns the given database identifier. If more than one name is supplied joins them using the correct database joining character (typically .).

Oracle restricts identifiers to:

  30 chars long
  start with a letter [a-z]
  { [a-z0-9], $, _, # }
  case insensitive
  not a reserved word (unless quoted?)

Identifiers longer than 30 characters will be abbreviated to the first 5 characters of the identifier and 25 characters from an MD5 derived from the identifier. This should make name collisions unlikely.

User Comments

prepare_regexp

$sql = $db->prepare_regexp( $col, $value )

Oracle use the syntax:

REGEXP_LIKE ($col, $value)

For the quoted regexp $value and the quoted column $col.

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quote_binary

$str = $db->quote_binary( $value )

Oracle requires transforms of binary data to work correctly.

This method should be called on data $value containing null bytes or back-slashes before being passed on quote_value.

User Comments

quote_ordervalue

$str = $db->quote_ordervalue( $field, $value )

Oracle can't order by CLOBS so need special treatment when creating the ordervalues tables. This method fixes up $value to limit it to 1000 characters (4000 bytes) or returns undef if $value is not defined.

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index_name

$name = $db->index_name( $table, @cols )

Should return the name of the first index that starts with named columns @cols in the named $table. However, this is not supported by Oracle so always returns 1.

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sql_as

$sql = $db->sql_AS()

Returns the syntactic glue to use when aliasing. Oracle does not require a phrase so just returns a space character.

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retry_error

$boolean = $db->retry_error()

Returns a boolean for whether the database error is a retry error. Based on whether DBI#err code is 3113 or 3114.

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type_info

$type_info = $db->type_info( $data_type )

See DBI/type_info. Oracle has is own type information mappings.

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COPYRIGHT

EPrints 3.4 is supplied by EPrints Services.

http://www.eprints.org/eprints-3.4/

LICENSE

This file is part of EPrints 3.4 http://www.eprints.org/.

EPrints 3.4 and this file are released under the terms of the GNU Lesser General Public License version 3 as published by the Free Software Foundation unless otherwise stated.

EPrints 3.4 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with EPrints 3.4. If not, see http://www.gnu.org/licenses/.

User Comments

@@ Line 1: / Line 1: @@
 <!-- Pod2Wiki=_preamble_
-This page has been automatically generated from the EPrints 3.2 source. Any wiki changes made between the 'Pod2Wiki=*' and 'Edit below this comment' comments will be lost.
+This page has been automatically generated from the EPrints 3.4 source. Any wiki changes made between the 'Pod2Wiki=*' and 'Edit below this comment' comments will be lost.
-  -->{{API}}{{Pod2Wiki}}{{API:Source|file=EPrints/Database/Oracle.pm|package_name=EPrints::Database::Oracle}}[[Category:API|ORACLE]][[Category:API:EPrints/Database|ORACLE]][[Category:API:EPrints/Database/Oracle|ORACLE]]<div><!-- Edit below this comment -->
+  -->{{API}}{{Pod2Wiki}}{{API:Source|file=EPrints/Database/Oracle.pm|package_name=EPrints::Database::Oracle}}[[Category:API|ORACLE]][[Category:API:EPrints/Database|ORACLE]]<div><!-- Edit below this comment -->
@@ Line 15: / Line 15: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=head_synopsis -->
+<!-- Pod2Wiki=head_description -->
-==SYNOPSIS==
+==DESCRIPTION==
-These settings are the default settings for the free Oracle developer version:
+Oracle database wrapper for Oracle DB version 9+.
-  # Oracle driver settings for database.pl
-  $c-&gt;{dbdriver} = "Oracle";
-  $c-&gt;{dbhost} = "localhost";
-  $c-&gt;{dbsid} = "XE;
-  $c-&gt;{dbuser} = "HR";
-  $c-&gt;{dbpass} = "HR";
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 <span style='display:none'>User Comments</span>
@@ Line 33: / Line 26: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=head_description -->
+<!-- Pod2Wiki=head_synopsis -->
-==DESCRIPTION==
+===Synopsis===
-Oracle database wrapper for Oracle DB version 9+.
+These settings are the default settings for the free Oracle developer version:
+    # Oracle driver settings for database.pl
+    $c-&gt;{dbdriver} = "Oracle";
+    $c-&gt;{dbhost} = "localhost";
+    $c-&gt;{dbsid} = "XE;
+    $c-&gt;{dbuser} = "HR";
+    $c-&gt;{dbpass} = "HR";
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 <span style='display:none'>User Comments</span>
@@ Line 48: / Line 48: @@
 Enable the HR user in Oracle XE.
-Set the ORACLE_HOME and ORACLE_SID environment variables. To add these globally edit /etc/profile.d/oracle.sh (for XE edition):
+Set the <tt>ORACLE_HOME</tt> and <tt>ORACLE_SID</tt> environment variables. To  add these globally edit <tt>/etc/profile.d/oracle.sh</tt> (for XE edition):
    export ORACLE_HOME="/usr/lib/oracle/xe/app/oracle/product/10.2.0/server"
@@ Line 64: / Line 64: @@
 <!-- Pod2Wiki=head_oracle_specific_annoyances -->
 ===Oracle-specific Annoyances===
-Use the GQLPlus wrapper from http://gqlplus.sourceforge.net/ instead of sqlplus.
+Use the GQLPlus wrapper from http://gqlplus.sourceforge.net/ instead  of sqlplus.
+Oracle will uppercase any identifiers that aren't quoted and is case  sensitive, hence mixing quoted and unquoted identifiers will lead to  problems.
+Oracle does not support <tt>LIMIT()</tt>.
+Oracle does not support <tt>AUTO_INCREMENT</tt> (MySQL) nor <tt>SERIAL</tt>  (Postgres).
+Oracle won't <tt>ORDER BY LOBS</tt>.
+Oracle requires special means to insert values into <tt>CLOB</tt>/<tt>BLOB</tt>.
+Oracle doesn't support <tt>AS</tt> when aliasing.
-Oracle will uppercase any identifiers that aren't quoted and is case sensitive, hence mixing quoted and unquoted identifiers will lead to problems.
+When specifying char column lengths use (n char) to define character  semantics. Otherwise oracle uses the <tt>nls_length_semantics</tt> setting  to determine whether you meant bytes or characters.
-Oracle does not support LIMIT().
+{{API:PodLink|file=DBD/Oracle|package_name=DBD::Oracle|section=|text=DBD::Oracle}} can crash when using <tt>PERL_USE_SAFE_PUTENV</tt>-compiled  Perls, see http://www.eprints.org/tech.php/13984.html.
-Oracle does not support AUTO_INCREMENT (MySQL) nor SERIAL (Postgres).
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
-Oracle won't ORDER BY LOBS.
-Oracle requires special means to insert values into CLOB/BLOB.
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=head_constants -->
+==CONSTANTS==
+See [[API:EPrints/Database#CONSTANTS|EPrints::Database]].
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
-Oracle doesn't support "AS" when aliasing.
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=head_instance_variables -->
+==INSTANCE VARIABLES==
+See [[API:EPrints/Database#INSTANCE_VARIABLES|EPrints::Database]].
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 85: / Line 111: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=head_todo -->
+<!-- Pod2Wiki=head_methods -->
-===TODO===
+==METHODS==
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 <span style='display:none'>User Comments</span>
@@ Line 94: / Line 120: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=item_epadmin_create -->
+<!-- Pod2Wiki=item_connect -->
-====epadmin create====
+===connect===
+ $db-&gt;connect()
+Connects to the database.  Also sets <tt>LongReadLen</tt> to <tt>128*1024</tt>.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 104: / Line 133: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=item_index_name -->
+<!-- Pod2Wiki=item_prepare_select -->
-====$name = $db-&gt;index_name( $table, @columns )====
+===prepare_select===
+ $sth = $db-&gt;prepare_select( $sql, [ %options ] )
+Prepare a <tt>SELECT</tt> statement <tt>$sql</tt> and return a handle to it. After preparing a statement use <tt>execute()</tt> to execute it.
+Returns a {{API:PodLink|file=DBI|package_name=DBI|section=|text=DBI}} statement handle.
+The <tt>LIMIT</tt> SQL keyword is not universally supported, to specify this use the <tt>limit</tt> option.
+Options:
+    limit - limit the number of rows returned
+    offset - return '''limit''' number of rows after offset
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 <span style='display:none'>User Comments</span>
@@ Line 114: / Line 155: @@
 <!-- Pod2Wiki= -->
 </div>
-<!-- Pod2Wiki=head_methods -->
+<!-- Pod2Wiki=item_create_archive_tables -->
-==METHODS==
+===create_archive_tables===
+ $success = $db-&gt;create_archive_tables()
+Creates all the SQL tables for all datasets.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 <span style='display:none'>User Comments</span>
@@ Line 127: / Line 172: @@
   $version = $db-&gt;get_server_version
-Return the database server version.
+Returns the database server version.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 139: / Line 184: @@
 ===get_column_type===
-  $real_type = $db-&gt;get_column_type( NAME, TYPE, NOT_NULL, [, LENGTH ] )
+  $real_type = $db-&gt;get_column_type( $name, $type, $not_null, [ $length ] )
-Returns a column definition for NAME of type TYPE. If NOT_NULL is true the column will be created NOT NULL. For column types that require a length use LENGTH.
+Returns a SQL column definition for <tt>$name</tt> of type <tt>$type</tt>. If  <tt>$not_null</tt> is <tt>true</tt> the column will be set to <tt>NOT NULL</tt>. For  column types that require a length use <tt>$length</tt>.
-TYPE is the SQL type. The types are constants defined by this module, to import them use:
+<tt>$type</tt> is the SQL type. The types are constants defined by this  module, to import them use:
    use EPrints::Database qw( :sql_types );
@@ Line 148: / Line 193: @@
 Supported types (n = requires LENGTH argument):
-Character data: SQL_VARCHAR(n), SQL_LONGVARCHAR.
+Character data: <tt>SQL_VARCHAR(n)</tt>, <tt>SQL_LONGVARCHAR</tt>.
-Binary data: SQL_VARBINARY(n), SQL_LONGVARBINARY.
+Binary data: <tt>SQL_VARBINARY(n)</tt>, <tt>SQL_LONGVARBINARY</tt>.
-Integer data: SQL_TINYINT, SQL_SMALLINT, SQL_INTEGER.
+Integer data: <tt>SQL_TINYINT</tt>, <tt>SQL_SMALLINT</tt>, <tt>SQL_INTEGER</tt>,
-Floating-point data: SQL_REAL, SQL_DOUBLE.
+Floating-point data: <tt>SQL_REAL</tt>, <tt>SQL_DOUBLE</tt>.
-Time data: SQL_DATE, SQL_TIME.
+Time data: <tt>SQL_DATE</tt>, <tt>SQL_TIME</tt>.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 182: / Line 227: @@
   $boolean = $db-&gt;has_sequence( $name )
-Return true if a sequence of the given name exists in the database.
+Return <tt>true</tt> if a sequence of the given $&lt;name&gt; exists in the  database.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 194: / Line 239: @@
 ===has_column===
-  $boolean = $db-&gt;has_column( $tablename, $columnname )
+  $boolean = $db-&gt;has_column( $table, $column )
-Return true if the a table of the given name has a column named $columnname in the database.
+Return <tt>true</tt> if the named database <tt>$table</tt> has the named  <tt>$column</tt>.
+Default method from [[API:EPrints/Database|EPrints::Database]] this is really slow and this  is much faster.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_has_table -->
+===has_table===
+ $boolean = $db-&gt;has_table( $table )
+Returns boolean dependent on whether the named <tt>$table</tt> exists in the  database.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_counter_current -->
+===counter_current===
+ $n = $db-&gt;counter_current( $counter )
+Return the value of the previous counter_next on <tt>$counter</tt>.
+Oracle doesn't support getting the <tt>current</tt> value of a sequence so this method always returns <tt>undef</tt>.
 <div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
@@ Line 207: / Line 282: @@
 ===quote_identifier===
-  $id = $db-&gt;quote_identifier( $col [, $col ] )
+  $id = $db-&gt;quote_identifier( @columns )
-This method quotes and returns the given database identifier. If more than one name is supplied joins them using the correct database join character (typically '.').
+This method quotes and returns the given database identifier. If more  than one name is supplied joins them using the correct database  joining character (typically <tt>.</tt>).
 Oracle restricts identifiers to:
@@ Line 218: / Line 293: @@
     not a reserved word (unless quoted?)
-Identifiers longer than 30 chars will be abbreviated to the first 5 chars of the identifier and 25 characters from an MD5 derived from the identifier. This should make name collisions unlikely.
+Identifiers longer than 30 characters will be abbreviated to the first  5 characters of the identifier and 25 characters from an MD5 derived  from the identifier. This should make name collisions unlikely.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_prepare_regexp -->
+===prepare_regexp===
+ $sql = $db-&gt;prepare_regexp( $col, $value )
+Oracle use the syntax:
+ REGEXP_LIKE ($col, $value)
+For the quoted regexp <tt>$value</tt> and the quoted column <tt>$col</tt>.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_quote_binary -->
+===quote_binary===
+ $str = $db-&gt;quote_binary( $value )
+Oracle requires transforms of binary data to work correctly.
+This method should be called on data <tt>$value</tt> containing null bytes or back-slashes before being passed on [[API:EPrints/Database/Oracle#quote_value|quote_value]].
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_quote_ordervalue -->
+===quote_ordervalue===
+ $str = $db-&gt;quote_ordervalue( $field, $value )
+Oracle can't order by <tt>CLOB</tt>S so need special treatment when creating  the ordervalues tables. This method fixes up <tt>$value</tt> to limit it to  1000 characters (4000 bytes) or returns <tt>undef</tt> if <tt>$value</tt> is not  defined.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_index_name -->
+===index_name===
+ $name = $db-&gt;index_name( $table, @cols )
+Should return the name of the first index that starts with named  columns <tt>@cols</tt> in the named <tt>$table</tt>. However, this is not  supported by Oracle so always returns <tt>1</tt>.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_sql_as -->
+===sql_as===
+ $sql = $db-&gt;sql_AS()
+Returns the syntactic glue to use when aliasing. Oracle does not  require a phrase so just returns a space character.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_retry_error -->
+===retry_error===
+ $boolean = $db-&gt;retry_error()
+Returns a boolean for whether the database error is a retry error. Based on whether {{API:PodLink|file=DBI#err|package_name=DBI#err|section=|text=DBI#err}} code is <tt>3113</tt> or <tt>3114</tt>.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=item_type_info -->
+===type_info===
+ $type_info = $db-&gt;type_info( $data_type )
+See {{API:PodLink|file=DBI|package_name=DBI|section=type_info|text=DBI/type_info}}.  Oracle has is own type information mappings.
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=head_see_also -->
+==SEE ALSO==
+[[API:EPrints/Database|EPrints::Database]]
+<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
+<span style='display:none'>User Comments</span>
+<!-- Edit below this comment -->
+<!-- Pod2Wiki= -->
+</div>
+<!-- Pod2Wiki=head_copyright -->
+==COPYRIGHT==
+{{API:Copyright}}
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Difference between revisions of "API:EPrints/Database/Oracle"

Latest revision as of 00:00, 12 January 2022

Contents

NAME

DESCRIPTION

Synopsis

Setting up Oracle

Oracle-specific Annoyances

CONSTANTS

INSTANCE VARIABLES

METHODS

connect

prepare_select

create_archive_tables

get_server_version

get_column_type

get_tables

has_sequence

has_column

has_table

counter_current

quote_identifier

prepare_regexp

quote_binary

quote_ordervalue

index_name

sql_as

retry_error

type_info

SEE ALSO

COPYRIGHT

LICENSE

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