diff --git a/db/zmalter-0.9.8.sql b/db/zmalter-0.9.8.sql
index 26b05ae32..9176c0296 100644
--- a/db/zmalter-0.9.8.sql
+++ b/db/zmalter-0.9.8.sql
@@ -2,3 +2,7 @@
 -- This updates a 0.9.8 database to 0.9.9
 --
 update Monitors set Colours = Colours * 8;
+optimize table Events;
+alter table Events modify column Length numeric( 10, 2 ) not null default 0.00;
+optimize table Frames;
+alter table Frames add column Delta numeric( 8, 2 ) not null default 0.00 after TimeStamp;
diff --git a/db/zmschema.sql.z b/db/zmschema.sql.z
index 35782045a..d637c2d53 100644
--- a/db/zmschema.sql.z
+++ b/db/zmschema.sql.z
@@ -2,7 +2,7 @@
 --
 -- Host: localhost    Database: ZM_DB_NAME
 ---------------------------------------------------------
--- Server version	3.23.49
+-- Server version   3.23.49
 
 --
 -- Current Database: ZM_DB_NAME
@@ -22,7 +22,7 @@ CREATE TABLE Events (
   Name tinytext NOT NULL,
   StartTime datetime default NULL,
   EndTime datetime default NULL,
-  Length int(10) unsigned default NULL,
+  Length decimal(10,2) NOT NULL default '0.00',
   Frames int(10) unsigned default NULL,
   AlarmFrames int(10) unsigned default NULL,
   TotScore int(10) unsigned NOT NULL default '0',
@@ -68,6 +68,7 @@ CREATE TABLE Frames (
   AlarmFrame tinyint(4) NOT NULL default '0',
   ImagePath tinytext NOT NULL,
   TimeStamp timestamp(14) NOT NULL,
+  Delta decimal(8,2) NOT NULL default '0.00',
   Score smallint(5) unsigned NOT NULL default '0',
   PRIMARY KEY  (Id),
   UNIQUE KEY UC_Id (Id),