diff --git a/Code/Common/Core/mvdDatabaseConnection.cxx b/Code/Common/Core/mvdDatabaseConnection.cxx
index 3a237b9c3ad6c9e2721d84dab716bb9b1f8b550f..9e52d3b525906ad05ad855512643625e38ba7916 100644
--- a/Code/Common/Core/mvdDatabaseConnection.cxx
+++ b/Code/Common/Core/mvdDatabaseConnection.cxx
@@ -420,11 +420,13 @@ DatabaseConnection
     DirectExecuteQuery(
       QString( "SELECT database_attribute.id, database_attribute.value\n"
                "FROM database_attribute\n"
-               "WHERE database_attribute.name='%1';"
+               "WHERE database_attribute.name='%1' COLLATE NOCASE;"
       ).arg( name )
     )
   );
 
+  QUERY_NEXT( query );
+
   //
   // Get ID, if needed.
   assert( query.value( 0 ).type()==QVariant::LongLong );
diff --git a/Code/Common/Core/mvdDatabaseModel.cxx b/Code/Common/Core/mvdDatabaseModel.cxx
index abe3b35694f2df721e1b1452d126173b27074ab4..73c7c39d489dc0eb19cb513b147970a251ba97f9 100644
--- a/Code/Common/Core/mvdDatabaseModel.cxx
+++ b/Code/Common/Core/mvdDatabaseModel.cxx
@@ -38,6 +38,7 @@
 
 //
 // Monteverdi includes (sorted by alphabetic order)
+#include "Core/mvdCore.h"
 #include "Core/mvdDatabaseConnection.h"
 #include "Core/mvdDatasetModel.h"
 #include "Core/mvdI18nCoreApplication.h"
@@ -315,6 +316,8 @@ DatabaseModel
 {
   assert( m_Db==NULL );
 
+  //
+  // Create SQL database-connection.
   delete m_Db;
 
   m_Db =
@@ -323,6 +326,26 @@ DatabaseModel
       this
     );
 
+  //
+  // Check database version.
+  QVariant version( m_Db->GetAttribute( "version" ) );
+
+  assert( version.type()==QVariant::String );
+
+  qWarning()
+    << "Database format version:" << ToStdString( version.toString() ).c_str();
+
+  if( !IsVersionGreaterEqual( version.toString(),
+                              Monteverdi2_DATA_VERSION_STRING ) )
+    throw std::runtime_error(
+      ToStdString(
+        tr( "Database format version %1 is not supported anymore." )
+        .arg( version.toString() )
+      )
+    );
+
+  //
+  // Check outdated datasets.
   CountType nbOutdated = InitializeDatasetModels();
 
   if( context!=NULL )