diff --git a/installation/sql/mysql/joomla.sql b/installation/sql/mysql/joomla.sql
index e4e47661119fa..647e4979f2e8a 100644
--- a/installation/sql/mysql/joomla.sql
+++ b/installation/sql/mysql/joomla.sql
@@ -209,7 +209,7 @@ CREATE TABLE IF NOT EXISTS `#__categories` (
   `title` varchar(255) NOT NULL DEFAULT '',
   `alias` varchar(400) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT '',
   `note` varchar(255) NOT NULL DEFAULT '',
-  `description` mediumtext NOT NULL DEFAULT '',
+  `description` mediumtext,
   `published` tinyint(1) NOT NULL DEFAULT 0,
   `checked_out` int(11) unsigned NOT NULL DEFAULT 0,
   `checked_out_time` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
@@ -1467,7 +1467,7 @@ CREATE TABLE IF NOT EXISTS `#__modules` (
   `asset_id` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'FK to the #__assets table.',
   `title` varchar(100) NOT NULL DEFAULT '',
   `note` varchar(255) NOT NULL DEFAULT '',
-  `content` text NOT NULL DEFAULT '',
+  `content` text,
   `ordering` int(11) NOT NULL DEFAULT 0,
   `position` varchar(50) NOT NULL DEFAULT '',
   `checked_out` int(10) unsigned NOT NULL DEFAULT 0,
@@ -1802,12 +1802,12 @@ CREATE TABLE IF NOT EXISTS `#__ucm_content` (
   `core_type_alias` varchar(400) NOT NULL DEFAULT '' COMMENT 'FK to the content types table',
   `core_title` varchar(400) NOT NULL DEFAULT '',
   `core_alias` varchar(400) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT '',
-  `core_body` mediumtext NOT NULL DEFAULT '',
+  `core_body` mediumtext,
   `core_state` tinyint(1) NOT NULL DEFAULT 0,
   `core_checked_out_time` varchar(255) NOT NULL DEFAULT '0000-00-00 00:00:00',
   `core_checked_out_user_id` int(10) unsigned NOT NULL DEFAULT 0,
   `core_access` int(10) unsigned NOT NULL DEFAULT 0,
-  `core_params` text NOT NULL DEFAULT '',
+  `core_params` text,
   `core_featured` tinyint(4) unsigned NOT NULL DEFAULT 0,
   `core_metadata` varchar(2048) NOT NULL DEFAULT '' COMMENT 'JSON encoded metadata properties.',
   `core_created_user_id` int(10) unsigned NOT NULL DEFAULT 0,
@@ -1820,13 +1820,13 @@ CREATE TABLE IF NOT EXISTS `#__ucm_content` (
   `core_publish_down` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
   `core_content_item_id` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'ID from the individual type table',
   `asset_id` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'FK to the #__assets table.',
-  `core_images` text NOT NULL DEFAULT '',
-  `core_urls` text NOT NULL DEFAULT '',
+  `core_images`  text,
+  `core_urls` text,
   `core_hits` int(10) unsigned NOT NULL DEFAULT 0,
   `core_version` int(10) unsigned NOT NULL DEFAULT 1,
   `core_ordering` int(11) NOT NULL DEFAULT 0,
-  `core_metakey` text NOT NULL DEFAULT '',
-  `core_metadesc` text NOT NULL DEFAULT '',
+  `core_metakey` text,
+  `core_metadesc` text,
   `core_catid` int(10) unsigned NOT NULL DEFAULT 0,
   `core_xreference` varchar(50) NOT NULL DEFAULT '' COMMENT 'A reference to enable linkages to external data sets.',
   `core_type_id` int(10) unsigned NOT NULL DEFAULT 0,
diff --git a/installation/sql/postgresql/joomla.sql b/installation/sql/postgresql/joomla.sql
index 9f9fe1ccf96cd..5c6f6730379f8 100644
--- a/installation/sql/postgresql/joomla.sql
+++ b/installation/sql/postgresql/joomla.sql
@@ -209,12 +209,12 @@ CREATE TABLE IF NOT EXISTS "#__categories" (
   "title" varchar(255) DEFAULT '' NOT NULL,
   "alias" varchar(255) DEFAULT '' NOT NULL,
   "note" varchar(255) DEFAULT '' NOT NULL,
-  "description" text DEFAULT '' NOT NULL,
+  "description" text,
   "published" smallint DEFAULT 0 NOT NULL,
   "checked_out" bigint DEFAULT 0 NOT NULL,
   "checked_out_time" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "access" bigint DEFAULT 0 NOT NULL,
-  "params" text DEFAULT '' NOT NULL,
+  "params" text,
   "metadesc" varchar(1024) DEFAULT '' NOT NULL,
   "metakey" varchar(1024) DEFAULT '' NOT NULL,
   "metadata" varchar(2048) DEFAULT '' NOT NULL,
@@ -674,17 +674,17 @@ CREATE TABLE IF NOT EXISTS "#__fields" (
   "title" varchar(255) DEFAULT '' NOT NULL,
   "name" varchar(255) DEFAULT '' NOT NULL,
   "label" varchar(255) DEFAULT '' NOT NULL,
-  "default_value" text DEFAULT '' NOT NULL,
+  "default_value" text,
   "type" varchar(255) DEFAULT 'text' NOT NULL,
   "note" varchar(255) DEFAULT '' NOT NULL,
-  "description" text DEFAULT '' NOT NULL,
+  "description" text,
   "state" smallint DEFAULT 0 NOT NULL,
   "required" smallint DEFAULT 0 NOT NULL,
   "checked_out" integer DEFAULT 0 NOT NULL,
   "checked_out_time" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "ordering" bigint DEFAULT 0 NOT NULL,
-  "params" text DEFAULT '' NOT NULL,
-  "fieldparams" text DEFAULT '' NOT NULL,
+  "params" text,
+  "fieldparams" text,
   "language" varchar(7) DEFAULT '' NOT NULL,
   "created_time" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "created_user_id" bigint DEFAULT 0 NOT NULL,
@@ -725,7 +725,7 @@ CREATE TABLE IF NOT EXISTS "#__fields_groups" (
   "checked_out" integer DEFAULT '0' NOT NULL,
   "checked_out_time" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "ordering" integer DEFAULT '0' NOT NULL,
-  "params" text DEFAULT '' NOT NULL,
+  "params" text,
   "language" varchar(7) DEFAULT '' NOT NULL,
   "created" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "created_by" bigint DEFAULT '0' NOT NULL,
@@ -748,7 +748,7 @@ CREATE INDEX "#__fields_groups_idx_language" ON "#__fields_groups" ("language");
 CREATE TABLE IF NOT EXISTS "#__fields_values" (
 "field_id" bigint DEFAULT 0 NOT NULL,
 "item_id" varchar(255) DEFAULT '' NOT NULL,
-"value" text DEFAULT '' NOT NULL
+"value" text
 );
 CREATE INDEX "#__fields_values_idx_field_id" ON "#__fields_values" ("field_id");
 CREATE INDEX "#__fields_values_idx_item_id" ON "#__fields_values" ("item_id");
@@ -784,7 +784,7 @@ CREATE TABLE IF NOT EXISTS "#__finder_links" (
   "url" varchar(255) NOT NULL,
   "route" varchar(255) NOT NULL,
   "title" varchar(400) DEFAULT NULL,
-  "description" text DEFAULT '' NOT NULL,
+  "description" text,
   "indexdate" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
   "md5sum" varchar(32) DEFAULT NULL,
   "published" smallint DEFAULT 1 NOT NULL,
@@ -1438,7 +1438,7 @@ CREATE TABLE IF NOT EXISTS "#__modules" (
   "asset_id" bigint DEFAULT 0 NOT NULL,
   "title" varchar(100) DEFAULT '' NOT NULL,
   "note" varchar(255) DEFAULT '' NOT NULL,
-  "content" text DEFAULT '' NOT NULL,
+  "content" text,
   "ordering" bigint DEFAULT 0 NOT NULL,
   "position" varchar(50) DEFAULT '' NOT NULL,
   "checked_out" integer DEFAULT 0 NOT NULL,