Index: src/main/java/org/apache/jackrabbit/core/data/db/DbDataStore.java
===================================================================
--- src/main/java/org/apache/jackrabbit/core/data/db/DbDataStore.java	(revision 966594)
+++ src/main/java/org/apache/jackrabbit/core/data/db/DbDataStore.java	(working copy)
@@ -26,6 +26,7 @@
 import org.apache.jackrabbit.core.util.db.ConnectionHelper;
 import org.apache.jackrabbit.core.util.db.DatabaseAware;
 import org.apache.jackrabbit.core.util.db.DbUtility;
+import org.apache.jackrabbit.core.util.db.OracleConnectionHelper;
 import org.apache.jackrabbit.core.util.db.StreamWrapper;
 import org.apache.jackrabbit.util.Text;
 import org.slf4j.Logger;
@@ -597,7 +598,11 @@
      * @throws Exception on error
      */
     protected ConnectionHelper createConnectionHelper(DataSource dataSrc) throws Exception {
-        return new ConnectionHelper(dataSrc, false);
+        if ("oracle".equals(databaseType)) {
+            return new OracleConnectionHelper(dataSrc, false);
+        } else {
+            return new ConnectionHelper(dataSrc, false);
+        }
     }
 
     /**
@@ -963,7 +968,7 @@
      * @param schemaObjectPrefix the new prefix
      */
     public void setSchemaObjectPrefix(String schemaObjectPrefix) {
-        this.schemaObjectPrefix = schemaObjectPrefix;
+        this.schemaObjectPrefix = schemaObjectPrefix.toUpperCase();
     }
 
     public String getDataSourceName() {