diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/ApplicationMappingDAO.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/ApplicationMappingDAO.java
index 372ea626ec..e246c1c92b 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/ApplicationMappingDAO.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/ApplicationMappingDAO.java
@@ -26,7 +26,7 @@ public interface ApplicationMappingDAO {
 
     int addApplicationMapping(int deviceId, int applicationId, int tenantId) throws DeviceManagementDAOException;
 
-    List<Integer> addApplicationMappings(int deviceId, List<Integer> applicationIds, int tenantId)
+    void addApplicationMappings(int deviceId, List<Integer> applicationIds, int tenantId)
             throws DeviceManagementDAOException;
 
     void removeApplicationMapping(int deviceId, List<Integer> appIdList, int tenantId)
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/AbstractDeviceDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/AbstractDeviceDAOImpl.java
index 466b1210c6..aedc981f48 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/AbstractDeviceDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/AbstractDeviceDAOImpl.java
@@ -46,7 +46,7 @@ public abstract class AbstractDeviceDAOImpl implements DeviceDAO {
             conn = this.getConnection();
             String sql = "INSERT INTO DM_DEVICE(DESCRIPTION, NAME, DEVICE_TYPE_ID, DEVICE_IDENTIFICATION, TENANT_ID) " +
                     "VALUES (?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setString(1, device.getDescription());
             stmt.setString(2, device.getName());
             stmt.setInt(3, typeId);
@@ -77,7 +77,7 @@ public abstract class AbstractDeviceDAOImpl implements DeviceDAO {
             conn = this.getConnection();
             String sql = "UPDATE DM_DEVICE SET DESCRIPTION = ?, NAME = ? WHERE DEVICE_IDENTIFICATION = ? AND " +
                     "DEVICE_TYPE_ID = ? AND TENANT_ID = ?";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setString(1, device.getDescription());
             stmt.setString(2, device.getName());
             stmt.setString(3, device.getDeviceIdentifier());
@@ -433,7 +433,7 @@ public abstract class AbstractDeviceDAOImpl implements DeviceDAO {
             conn = this.getConnection();
             String sql = "INSERT INTO DM_ENROLMENT(DEVICE_ID, OWNER, OWNERSHIP, STATUS,DATE_OF_ENROLMENT, " +
                     "DATE_OF_LAST_UPDATE, TENANT_ID) VALUES(?, ?, ?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setInt(1, device.getId());
             stmt.setString(2, device.getEnrolmentInfo().getOwner());
             stmt.setString(3, device.getEnrolmentInfo().getOwnership().toString());
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationDAOImpl.java
index 15b96b9b87..b2f79dbbd6 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationDAOImpl.java
@@ -86,7 +86,7 @@ public class ApplicationDAOImpl implements ApplicationDAO {
             conn = this.getConnection();
             stmt = conn.prepareStatement("INSERT INTO DM_APPLICATION (NAME, PLATFORM, CATEGORY, " +
                     "VERSION, TYPE, LOCATION_URL, IMAGE_URL, TENANT_ID,APP_PROPERTIES,APP_IDENTIFIER) " +
-                    "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?,?)", PreparedStatement.RETURN_GENERATED_KEYS);
+                    "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?,?)", new String[] {"id"});
 
 
             for (Application application : applications) {
@@ -126,7 +126,7 @@ public class ApplicationDAOImpl implements ApplicationDAO {
             conn = this.getConnection();
             conn.setAutoCommit(false);
             stmt = conn.prepareStatement("DELETE DM_APPLICATION WHERE APP_IDENTIFIER = ? AND TENANT_ID = ?",
-                    Statement.RETURN_GENERATED_KEYS);
+                    new String[] {"id"});
 
             for (Application app : apps) {
                 stmt.setString(1, app.getApplicationIdentifier());
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationMappingDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationMappingDAOImpl.java
index 8e56611751..45154a54a2 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationMappingDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/ApplicationMappingDAOImpl.java
@@ -49,7 +49,7 @@ public class ApplicationMappingDAOImpl implements ApplicationMappingDAO {
             conn = this.getConnection();
             String sql = "INSERT INTO DM_DEVICE_APPLICATION_MAPPING (DEVICE_ID, APPLICATION_ID, " +
                     "TENANT_ID) VALUES (?, ?, ?)";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setInt(1, deviceId);
             stmt.setInt(2, applicationId);
             stmt.setInt(3, tenantId);
@@ -68,17 +68,17 @@ public class ApplicationMappingDAOImpl implements ApplicationMappingDAO {
     }
 
     @Override
-    public List<Integer> addApplicationMappings(int deviceId, List<Integer> applicationIds,
+    public void addApplicationMappings(int deviceId, List<Integer> applicationIds,
                                                 int tenantId) throws DeviceManagementDAOException {
         Connection conn;
         PreparedStatement stmt = null;
         ResultSet rs = null;
-        List<Integer> mappingIds = new ArrayList<>();
+
         try {
             conn = this.getConnection();
             String sql = "INSERT INTO DM_DEVICE_APPLICATION_MAPPING (DEVICE_ID, APPLICATION_ID, " +
                     "TENANT_ID) VALUES (?, ?, ?)";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql);
 
             for (int applicationId : applicationIds) {
                 stmt.setInt(1, deviceId);
@@ -88,11 +88,11 @@ public class ApplicationMappingDAOImpl implements ApplicationMappingDAO {
             }
             stmt.executeBatch();
 
-            rs = stmt.getGeneratedKeys();
-            while (rs.next()) {
-                mappingIds.add(rs.getInt(1));
-            }
-            return mappingIds;
+//            rs = stmt.getGeneratedKeys();
+//            while (rs.next()) {
+//                mappingIds.add(rs.getInt(1));
+//            }
+//            return mappingIds;
         } catch (SQLException e) {
             throw new DeviceManagementDAOException("Error occurred while adding device application mappings", e);
         } finally {
@@ -109,7 +109,7 @@ public class ApplicationMappingDAOImpl implements ApplicationMappingDAO {
             conn = this.getConnection();
             String sql = "DELETE DM_DEVICE_APPLICATION_MAPPING WHERE DEVICE_ID = ? AND " +
                     "APPLICATION_ID = ? AND TENANT_ID = ?";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql);
 
             for (Integer appId : appIdList) {
                 stmt.setInt(1, deviceId);
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/EnrollmentDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/EnrollmentDAOImpl.java
index 0e4334b206..f3a5a58511 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/EnrollmentDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/dao/impl/EnrollmentDAOImpl.java
@@ -42,7 +42,7 @@ public class EnrollmentDAOImpl implements EnrollmentDAO {
             conn = this.getConnection();
             String sql = "INSERT INTO DM_ENROLMENT(DEVICE_ID, OWNER, OWNERSHIP, STATUS, " +
                     "DATE_OF_ENROLMENT, DATE_OF_LAST_UPDATE, TENANT_ID) VALUES(?, ?, ?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setInt(1, deviceId);
             stmt.setString(2, enrolmentInfo.getOwner());
             stmt.setString(3, enrolmentInfo.getOwnership().toString());
@@ -76,7 +76,7 @@ public class EnrollmentDAOImpl implements EnrollmentDAO {
             String sql = "UPDATE DM_ENROLMENT SET OWNERSHIP = ?, STATUS = ?, " +
                     "DATE_OF_ENROLMENT = ?, DATE_OF_LAST_UPDATE = ? WHERE DEVICE_ID = ? AND OWNER = ? AND TENANT_ID = ?" +
                          " AND ID = ?";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setString(1, enrolmentInfo.getOwnership().toString());
             stmt.setString(2, enrolmentInfo.getStatus().toString());
             stmt.setTimestamp(3, new Timestamp(enrolmentInfo.getDateOfEnrolment()));
@@ -109,7 +109,7 @@ public class EnrollmentDAOImpl implements EnrollmentDAO {
             conn = this.getConnection();
             String sql = "UPDATE DM_ENROLMENT SET OWNERSHIP = ?, STATUS = ?, " +
                          "DATE_OF_ENROLMENT = ?, DATE_OF_LAST_UPDATE = ? WHERE ID = ?";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setString(1, enrolmentInfo.getOwnership().toString());
             stmt.setString(2, enrolmentInfo.getStatus().toString());
             stmt.setTimestamp(3, new Timestamp(enrolmentInfo.getDateOfEnrolment()));
@@ -140,7 +140,7 @@ public class EnrollmentDAOImpl implements EnrollmentDAO {
         try {
             conn = this.getConnection();
             String sql = "DELETE DM_ENROLMENT WHERE DEVICE_ID = ? AND OWNER = ? AND TENANT_ID = ?";
-            stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(sql, new String[] {"id"});
             stmt.setInt(1, deviceId);
             stmt.setString(2, currentOwner);
             stmt.setInt(3, tenantId);
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
index 8a282c83f2..97e140fd90 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
@@ -45,7 +45,7 @@ public class OperationDAOImpl implements OperationDAO {
             Connection connection = OperationManagementDAOFactory.getConnection();
             String sql = "INSERT INTO DM_OPERATION(TYPE, CREATED_TIMESTAMP, RECEIVED_TIMESTAMP, OPERATION_CODE)  " +
                     "VALUES (?, ?, ?, ?)";
-            stmt = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+            stmt = connection.prepareStatement(sql, new String[] {"id"});
             stmt.setString(1, operation.getType().toString());
             stmt.setTimestamp(2, new Timestamp(new Date().getTime()));
             stmt.setTimestamp(3, null);
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/PolicyOperationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/PolicyOperationDAOImpl.java
index 07c6112bd6..1bff85ae61 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/PolicyOperationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/PolicyOperationDAOImpl.java
@@ -39,6 +39,8 @@ public class PolicyOperationDAOImpl extends OperationDAOImpl {
     public int addOperation(Operation operation) throws OperationManagementDAOException {
         int operationId;
         PreparedStatement stmt = null;
+        ByteArrayOutputStream bao = null;
+        ObjectOutputStream oos = null;
         try {
             operationId = super.addOperation(operation);
             operation.setCreatedTimeStamp(new Timestamp(new java.util.Date().getTime()).toString());
@@ -48,12 +50,33 @@ public class PolicyOperationDAOImpl extends OperationDAOImpl {
             Connection conn = OperationManagementDAOFactory.getConnection();
             stmt = conn.prepareStatement("INSERT INTO DM_POLICY_OPERATION(OPERATION_ID, OPERATION_DETAILS) " +
                     "VALUES(?, ?)");
+
+            bao = new ByteArrayOutputStream();
+            oos = new ObjectOutputStream(bao);
+            oos.writeObject(operation);
+
             stmt.setInt(1, operationId);
-            stmt.setObject(2, policyOperation);
+            stmt.setBytes(2, bao.toByteArray());
             stmt.executeUpdate();
         } catch (SQLException e) {
             throw new OperationManagementDAOException("Error occurred while adding policy operation", e);
+        } catch (IOException e) {
+            throw new OperationManagementDAOException("Error occurred while serializing policy operation object", e);
         } finally {
+            if (bao != null) {
+                try {
+                    bao.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ByteArrayOutputStream", e);
+                }
+            }
+            if (oos != null) {
+                try {
+                    oos.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ObjectOutputStream", e);
+                }
+            }
             OperationManagementDAOUtil.cleanupResources(stmt);
         }
         return operationId;
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/ProfileOperationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/ProfileOperationDAOImpl.java
index 664ac370da..04e39eef98 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/ProfileOperationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/ProfileOperationDAOImpl.java
@@ -37,22 +37,46 @@ public class ProfileOperationDAOImpl extends OperationDAOImpl {
 
     public int addOperation(Operation operation) throws OperationManagementDAOException {
         PreparedStatement stmt = null;
+        ByteArrayOutputStream bao = null;
+        ObjectOutputStream oos = null;
+
         int operationId;
         try {
             operationId = super.addOperation(operation);
             operation.setCreatedTimeStamp(new Timestamp(new java.util.Date().getTime()).toString());
             operation.setId(operationId);
             operation.setEnabled(true);
-            ProfileOperation profileOp = (ProfileOperation) operation;
+            //ProfileOperation profileOp = (ProfileOperation) operation;
             Connection conn = OperationManagementDAOFactory.getConnection();
             stmt = conn.prepareStatement("INSERT INTO DM_PROFILE_OPERATION(OPERATION_ID, OPERATION_DETAILS) " +
                     "VALUES(?, ?)");
+
+            bao = new ByteArrayOutputStream();
+            oos = new ObjectOutputStream(bao);
+            oos.writeObject(operation);
+
             stmt.setInt(1, operationId);
-            stmt.setObject(2, profileOp);
+            stmt.setBytes(2, bao.toByteArray());
             stmt.executeUpdate();
         } catch (SQLException e) {
             throw new OperationManagementDAOException("Error occurred while adding profile operation", e);
+        } catch (IOException e) {
+            throw new OperationManagementDAOException("Error occurred while serializing profile operation object", e);
         } finally {
+            if (bao != null) {
+                try {
+                    bao.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ByteArrayOutputStream", e);
+                }
+            }
+            if (oos != null) {
+                try {
+                    oos.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ObjectOutputStream", e);
+                }
+            }
             OperationManagementDAOUtil.cleanupResources(stmt);
         }
         return operationId;
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/MonitoringDAO.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/MonitoringDAO.java
index 522b20f370..a7f42df06c 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/MonitoringDAO.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/MonitoringDAO.java
@@ -46,7 +46,7 @@ public interface MonitoringDAO {
 
     void setDeviceAsCompliance(int deviceId, int enrolmentId, int policyId) throws MonitoringDAOException;
 
-    void addNoneComplianceFeatures(int policyComplianceStatusId, int deviceId, List<ComplianceFeature>
+    void addNonComplianceFeatures(int policyComplianceStatusId, int deviceId, List<ComplianceFeature>
             complianceFeatures)
             throws MonitoringDAOException;
 
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/FeatureDAOImpl.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/FeatureDAOImpl.java
index 9688d1c53d..0af516ac70 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/FeatureDAOImpl.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/FeatureDAOImpl.java
@@ -67,7 +67,7 @@ public class FeatureDAOImpl implements FeatureDAO {
             conn = this.getConnection();
             String query = "INSERT INTO DM_PROFILE_FEATURES (PROFILE_ID, FEATURE_CODE, DEVICE_TYPE_ID, CONTENT, " +
                     "TENANT_ID) VALUES (?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query, new String[] {"id"});
 
             for (ProfileFeature feature : features) {
                 stmt.setInt(1, profileId);
@@ -113,13 +113,9 @@ public class FeatureDAOImpl implements FeatureDAO {
             String query = "UPDATE DM_PROFILE_FEATURES SET CONTENT = ? WHERE PROFILE_ID = ? AND FEATURE_CODE = ? AND" +
                     " TENANT_ID = ?";
 
-            stmt = conn.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query);
             for (ProfileFeature feature : features) {
-                if (conn.getMetaData().getDriverName().contains("H2")) {
-                    stmt.setBytes(1, PolicyManagerUtil.getBytes(feature.getContent()));
-                } else {
-                    stmt.setBytes(1, PolicyManagerUtil.getBytes(feature.getContent()));
-                }
+                stmt.setBytes(1, PolicyManagerUtil.getBytes(feature.getContent()));
                 stmt.setInt(2, profileId);
                 stmt.setString(3, feature.getFeatureCode());
                 stmt.setInt(4, tenantId);
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/MonitoringDAOImpl.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/MonitoringDAOImpl.java
index 54d0ff0198..20dac46f78 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/MonitoringDAOImpl.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/MonitoringDAOImpl.java
@@ -206,7 +206,7 @@ public class MonitoringDAOImpl implements MonitoringDAO {
     }
 
     @Override
-    public void addNoneComplianceFeatures(int policyComplianceStatusId, int deviceId, List<ComplianceFeature>
+    public void addNonComplianceFeatures(int policyComplianceStatusId, int deviceId, List<ComplianceFeature>
             complianceFeatures) throws MonitoringDAOException {
         Connection conn;
         PreparedStatement stmt = null;
@@ -215,7 +215,7 @@ public class MonitoringDAOImpl implements MonitoringDAO {
             conn = this.getConnection();
             String query = "INSERT INTO DM_POLICY_COMPLIANCE_FEATURES (COMPLIANCE_STATUS_ID, FEATURE_CODE, STATUS, " +
                     "TENANT_ID) VALUES (?, ?, ?, ?) ";
-            stmt = conn.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query);
             for (ComplianceFeature feature : complianceFeatures) {
                 stmt.setInt(1, policyComplianceStatusId);
                 stmt.setString(2, feature.getFeatureCode());
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/PolicyDAOImpl.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/PolicyDAOImpl.java
index 318505991b..7fd9d04d75 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/PolicyDAOImpl.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/PolicyDAOImpl.java
@@ -442,7 +442,7 @@ public class PolicyDAOImpl implements PolicyDAO {
         try {
             conn = this.getConnection();
             String query = "INSERT INTO DM_CRITERIA (TENANT_ID, NAME) VALUES (?, ?)";
-            stmt = conn.prepareStatement(query, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query, new String[] {"id"});
             stmt.setInt(1, tenantId);
             stmt.setString(2, criteria.getName());
             stmt.executeUpdate();
@@ -622,7 +622,7 @@ public class PolicyDAOImpl implements PolicyDAO {
         try {
             conn = this.getConnection();
             String query = "INSERT INTO DM_POLICY_CRITERIA (CRITERIA_ID, POLICY_ID) VALUES (?, ?)";
-            stmt = conn.prepareStatement(query, Statement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query, new String[] {"id"});
 
             List<PolicyCriterion> criteria = policy.getPolicyCriterias();
             for (PolicyCriterion criterion : criteria) {
@@ -1348,7 +1348,7 @@ public class PolicyDAOImpl implements PolicyDAO {
             conn = this.getConnection();
             String query = "INSERT INTO DM_POLICY (NAME, PROFILE_ID, TENANT_ID, PRIORITY, COMPLIANCE, OWNERSHIP_TYPE," +
                     "UPDATED, ACTIVE, DESCRIPTION) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query, new String[] {"id"});
 
             stmt.setString(1, policy.getPolicyName());
             stmt.setInt(2, policy.getProfile().getProfileId());
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/ProfileDAOImpl.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/ProfileDAOImpl.java
index fc10f61ee1..371c545b35 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/ProfileDAOImpl.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/dao/impl/ProfileDAOImpl.java
@@ -51,7 +51,7 @@ public class ProfileDAOImpl implements ProfileDAO {
             conn = this.getConnection();
             String query = "INSERT INTO DM_PROFILE " +
                     "(PROFILE_NAME,TENANT_ID, DEVICE_TYPE_ID, CREATED_TIME, UPDATED_TIME) VALUES (?, ?, ?, ?, ?)";
-            stmt = conn.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
+            stmt = conn.prepareStatement(query, new String[] {"id"});
 
             stmt.setString(1, profile.getProfileName());
             stmt.setInt(2, tenantId);
diff --git a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/mgt/impl/MonitoringManagerImpl.java b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/mgt/impl/MonitoringManagerImpl.java
index 598fd80b7e..a1d945c356 100644
--- a/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/mgt/impl/MonitoringManagerImpl.java
+++ b/components/policy-mgt/org.wso2.carbon.policy.mgt.core/src/main/java/org/wso2/carbon/policy/mgt/core/mgt/impl/MonitoringManagerImpl.java
@@ -120,7 +120,7 @@ public class MonitoringManagerImpl implements MonitoringManager {
                         if (log.isDebugEnabled()) {
                             log.debug("Compliance status primary key " + complianceData.getId());
                         }
-                        monitoringDAO.addNoneComplianceFeatures(complianceData.getId(), device.getId(),
+                        monitoringDAO.addNonComplianceFeatures(complianceData.getId(), device.getId(),
                                 complianceFeatures);
 
                         PolicyManagementDAOFactory.commitTransaction();
diff --git a/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/mssql.sql b/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/mssql.sql
index f27b6e69b9..f812b1575d 100644
--- a/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/mssql.sql
+++ b/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/mssql.sql
@@ -35,7 +35,7 @@ CREATE TABLE DM_CONFIG_OPERATION (
 
 CREATE TABLE DM_COMMAND_OPERATION (
     OPERATION_ID INTEGER NOT NULL,
-    ENABLED BIT NOT NULL DEFAULT FALSE,
+    ENABLED BIT NOT NULL DEFAULT 'FALSE',
     PRIMARY KEY (OPERATION_ID),
     CONSTRAINT fk_dm_operation_command FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID) ON DELETE NO ACTION ON UPDATE NO ACTION
@@ -337,20 +337,6 @@ CREATE TABLE DM_POLICY_COMPLIANCE_FEATURES (
     ON UPDATE NO ACTION
 );
 
-CREATE TABLE DM_ENROLMENT (
-    ID INTEGER IDENTITY NOT NULL,
-    DEVICE_ID INTEGER NOT NULL,
-    OWNER VARCHAR(50) NOT NULL,
-    OWNERSHIP VARCHAR(45) DEFAULT NULL,
-    STATUS VARCHAR(50) NULL,
-    DATE_OF_ENROLMENT DATETIME2(0) DEFAULT NULL,
-    DATE_OF_LAST_UPDATE DATETIME2(0) DEFAULT NULL,
-    TENANT_ID INT NOT NULL,
-    PRIMARY KEY (ID),
-    CONSTRAINT fk_dm_device_enrolment FOREIGN KEY (DEVICE_ID) REFERENCES
-    DM_DEVICE (ID) ON DELETE NO ACTION ON UPDATE NO ACTION
-);
-
 CREATE TABLE DM_APPLICATION (
     ID INTEGER IDENTITY NOT NULL,
     NAME VARCHAR(150) NOT NULL,
diff --git a/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/oracle.sql b/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/oracle.sql
index d0791dc420..2b33f64118 100644
--- a/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/oracle.sql
+++ b/features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/oracle.sql
@@ -26,7 +26,7 @@ CREATE TABLE DM_DEVICE (
   DEVICE_IDENTIFICATION VARCHAR2(300) DEFAULT NULL,
   TENANT_ID NUMBER(10) DEFAULT 0,
   CONSTRAINT PK_DM_DEVICE PRIMARY KEY (ID),
-  CONSTRAINT fk_DM_DEVICE_DM_DEVICE_TYPE2 FOREIGN KEY (DEVICE_TYPE_ID )
+  CONSTRAINT FK_DM_DEVICE_DM_DEVICE_TYPE2 FOREIGN KEY (DEVICE_TYPE_ID )
   REFERENCES DM_DEVICE_TYPE (ID)
 )
 /
@@ -71,7 +71,7 @@ CREATE TABLE DM_CONFIG_OPERATION (
   OPERATION_ID NUMBER(10) NOT NULL,
   OPERATION_CONFIG  BLOB DEFAULT NULL,
   CONSTRAINT PK_DM_CONFIG_OPERATION PRIMARY KEY (OPERATION_ID),
-  CONSTRAINT fk_dm_operation_config FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_OPERATION_CONFIG FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
@@ -79,7 +79,7 @@ CREATE TABLE DM_COMMAND_OPERATION (
   OPERATION_ID NUMBER(10) NOT NULL,
   ENABLED NUMBER(10) DEFAULT 0 NOT NULL,
   CONSTRAINT PK_DM_COMMAND_OPERATION PRIMARY KEY (OPERATION_ID),
-  CONSTRAINT fk_dm_operation_command FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_OPERATION_COMMAND FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
@@ -88,7 +88,7 @@ CREATE TABLE DM_POLICY_OPERATION (
   ENABLED NUMBER(10) DEFAULT 0 NOT NULL,
   OPERATION_DETAILS BLOB DEFAULT NULL,
   CONSTRAINT PK_DM_POLICY_OPERATION PRIMARY KEY (OPERATION_ID),
-  CONSTRAINT fk_dm_operation_policy FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_OPERATION_POLICY FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
@@ -97,7 +97,7 @@ CREATE TABLE DM_PROFILE_OPERATION (
   ENABLED NUMBER(10) DEFAULT 0 NOT NULL,
   OPERATION_DETAILS BLOB DEFAULT NULL,
   CONSTRAINT PK_DM_PROFILE_OPERATION PRIMARY KEY (OPERATION_ID),
-  CONSTRAINT fk_dm_operation_profile FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_OPERATION_PROFILE FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
@@ -111,7 +111,7 @@ CREATE TABLE DM_ENROLMENT (
   DATE_OF_LAST_UPDATE TIMESTAMP(0) DEFAULT NULL,
   TENANT_ID NUMBER(10) NOT NULL,
   CONSTRAINT PK_DM_ENROLMENT PRIMARY KEY (ID),
-  CONSTRAINT fk_dm_device_enrolment FOREIGN KEY (DEVICE_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_ENROLMENT FOREIGN KEY (DEVICE_ID) REFERENCES
     DM_DEVICE (ID)
 )
 /
@@ -129,29 +129,29 @@ WHEN (NEW.ID IS NULL)
   END;
 /
 
-CREATE TABLE DM_ENROLMENT_op_map (
+CREATE TABLE DM_ENROLMENT_OP_MAPPING (
   ID NUMBER(10) NOT NULL,
   ENROLMENT_ID NUMBER(10) NOT NULL,
   OPERATION_ID NUMBER(10) NOT NULL,
   STATUS VARCHAR2(50) NULL,
   PRIMARY KEY (ID),
-  CONSTRAINT fk_dm_device_op_map_device FOREIGN KEY (ENROLMENT_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_OP_MAP_DEVICE FOREIGN KEY (ENROLMENT_ID) REFERENCES
     DM_ENROLMENT (ID),
-  CONSTRAINT fk_dm_device_op_map_operation FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_OP_MAP_OPERATION FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
 -- Generate ID using sequence and trigger
-CREATE SEQUENCE DM_ENROLMENT_op_map_seq START WITH 1 INCREMENT BY 1 NOCACHE
+CREATE SEQUENCE DM_ENROLMENT_OP_MAP_seq START WITH 1 INCREMENT BY 1 NOCACHE
 /
-CREATE OR REPLACE TRIGGER DM_ENROLMENT_op_map_seq_tr
+CREATE OR REPLACE TRIGGER DM_ENROLMENT_OP_MAP_seq_tr
 BEFORE INSERT
-ON DM_ENROLMENT_op_map
+ON DM_ENROLMENT_OP_MAPPING
 REFERENCING NEW AS NEW
 FOR EACH ROW
 WHEN (NEW.ID IS NULL)
   BEGIN
-    SELECT DM_ENROLMENT_op_map_seq.NEXTVAL INTO :NEW.ID FROM DUAL;
+    SELECT DM_ENROLMENT_OP_MAP_seq.NEXTVAL INTO :NEW.ID FROM DUAL;
   END;
 /
 
@@ -161,9 +161,9 @@ CREATE TABLE DM_DEVICE_OPERATION_RESPONSE (
   OPERATION_ID NUMBER(10) NOT NULL,
   OPERATION_RESPONSE BLOB DEFAULT NULL,
   CONSTRAINT PK_DM_DEVICE_OP_RESPONSE PRIMARY KEY (ID),
-  CONSTRAINT fk_dm_device_op_res_enrollment FOREIGN KEY (ENROLMENT_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_OP_RES_DEVICE FOREIGN KEY (ENROLMENT_ID) REFERENCES
     DM_ENROLMENT (ID),
-  CONSTRAINT fk_dm_device_op_res_operation FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_OP_RES_OPERATION FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /
@@ -621,9 +621,9 @@ CREATE TABLE DM_NOTIFICATION (
   STATUS VARCHAR2(10) NULL,
   DESCRIPTION VARCHAR2(100) NULL,
   CONSTRAINT PK_DM_NOTIFICATION PRIMARY KEY (NOTIFICATION_ID),
-  CONSTRAINT fk_dm_device_notification FOREIGN KEY (DEVICE_ID) REFERENCES
+  CONSTRAINT FK_DM_DEVICE_NOTIFICATION FOREIGN KEY (DEVICE_ID) REFERENCES
     DM_DEVICE (ID),
-  CONSTRAINT fk_dm_operation_notification FOREIGN KEY (OPERATION_ID) REFERENCES
+  CONSTRAINT FK_DM_OPERATION_NOTIFICATION FOREIGN KEY (OPERATION_ID) REFERENCES
     DM_OPERATION (ID)
 )
 /