diff --git a/phpBB/install/schemas/oracle_schema.sql b/phpBB/install/schemas/oracle_schema.sql
index 7abf28e542..297b346631 100644
--- a/phpBB/install/schemas/oracle_schema.sql
+++ b/phpBB/install/schemas/oracle_schema.sql
@@ -215,8 +215,8 @@ CREATE TABLE phpbb_banlist (
   ban_start number(11) DEFAULT '0' NOT NULL,
   ban_end number(11) DEFAULT '0' NOT NULL,
   ban_exclude number(1) DEFAULT '0' NOT NULL,
-  ban_reason clob,
-  ban_give_reason clob,
+  ban_reason varchar2(1000),
+  ban_give_reason varchar2(1000),
   CONSTRAINT pk_phpbb_banlist PRIMARY KEY (ban_id)
 )
 /
@@ -280,7 +280,7 @@ CREATE INDEX phpbb_bookmarks_topic_user_id on phpbb_bookmarks (topic_id, user_id
 CREATE TABLE phpbb_bots (
   bot_id number(3) NOT NULL,
   bot_active number(1) DEFAULT '1' NOT NULL,
-  bot_name clob,
+  bot_name varchar2(1000),
   user_id number(8) DEFAULT '0' NOT NULL,
   bot_agent varchar2(255) DEFAULT '',
   bot_ip varchar2(255) DEFAULT '',
@@ -382,7 +382,7 @@ CREATE TABLE phpbb_drafts (
   topic_id number(8) DEFAULT '0' NOT NULL,
   forum_id number(8) DEFAULT '0' NOT NULL,
   save_time number(11) DEFAULT '0' NOT NULL,
-  draft_subject clob,
+  draft_subject varchar2(1000),
   draft_message clob,
   CONSTRAINT pk_phpbb_drafts PRIMARY KEY (draft_id)
 )
@@ -476,7 +476,7 @@ CREATE TABLE phpbb_forums (
   left_id number(5) NOT NULL,
   right_id number(5) NOT NULL,
   forum_parents clob,
-  forum_name clob,
+  forum_name varchar2(1000),
   forum_desc clob,
   forum_desc_bitfield number(11) DEFAULT '0' NOT NULL,
   forum_desc_uid varchar2(5) DEFAULT '',
@@ -837,7 +837,7 @@ CREATE TABLE phpbb_posts (
   enable_magic_url number(1) DEFAULT '1' NOT NULL,
   enable_sig number(1) DEFAULT '1' NOT NULL,
   post_username varchar2(255),
-  post_subject clob,
+  post_subject varchar2(1000),
   post_text clob,
   post_checksum varchar2(32),
   post_encoding varchar2(20) DEFAULT 'iso-8859-1',
@@ -845,7 +845,7 @@ CREATE TABLE phpbb_posts (
   bbcode_bitfield number(11) DEFAULT '0' NOT NULL,
   bbcode_uid varchar2(5) DEFAULT '',
   post_edit_time number(11) DEFAULT '0' NOT NULL,
-  post_edit_reason clob,
+  post_edit_reason varchar2(1000),
   post_edit_user number(8) DEFAULT '0' NOT NULL,
   post_edit_count number(5) DEFAULT '0' NOT NULL,
   post_edit_locked number(1) DEFAULT '0' NOT NULL,
@@ -896,9 +896,9 @@ CREATE TABLE phpbb_privmsgs (
   enable_smilies number(1) DEFAULT '1' NOT NULL,
   enable_magic_url number(1) DEFAULT '1' NOT NULL,
   enable_sig number(1) DEFAULT '1' NOT NULL,
-  message_subject clob,
+  message_subject varchar2(1000),
   message_text clob,
-  message_edit_reason clob,
+  message_edit_reason varchar2(1000),
   message_edit_user number(8) DEFAULT '0' NOT NULL,
   message_encoding varchar2(20) DEFAULT 'iso-8859-1',
   message_attachment number(1) DEFAULT '0' NOT NULL,
@@ -1591,7 +1591,7 @@ CREATE TABLE phpbb_topics (
   topic_attachment number(1) DEFAULT '0' NOT NULL,
   topic_approved number(1) DEFAULT '1' NOT NULL,
   topic_reported number(1) DEFAULT '0' NOT NULL,
-  topic_title clob,
+  topic_title varchar2(1000),
   topic_poster number(8) DEFAULT '0' NOT NULL,
   topic_time number(11) DEFAULT '0' NOT NULL,
   topic_time_limit number(11) DEFAULT '0' NOT NULL,
@@ -1610,7 +1610,7 @@ CREATE TABLE phpbb_topics (
   topic_moved_id number(8) DEFAULT '0' NOT NULL,
   topic_bumped number(1) DEFAULT '0' NOT NULL,
   topic_bumper number(8) DEFAULT '0' NOT NULL,
-  poll_title clob,
+  poll_title varchar2(1000),
   poll_start number(11) DEFAULT '0' NOT NULL,
   poll_length number(11) DEFAULT '0' NOT NULL,
   poll_max_options number(4) DEFAULT '1' NOT NULL,