Fixing oracle error

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/GenericOperationDAOImpl.java

@@ -407,36 +407,29 @@ public class GenericOperationDAOImpl implements OperationDAO {
 //                sql = sql + " OFFSET ?";
 //            }
 
-
-            String sql = "SELECT opm.ENROLMENT_ID, opm.CREATED_TIMESTAMP, opm.UPDATED_TIMESTAMP, opm.OPERATION_ID,\n" +
-                    "op.OPERATION_CODE, op.TYPE as OPERATION_TYPE, opm.STATUS, en.DEVICE_ID,\n" +
-                    "ops.RECEIVED_TIMESTAMP, ops.ID as OP_RES_ID, ops.OPERATION_RESPONSE,\n" +
-                    "de.DEVICE_IDENTIFICATION, dt.NAME as DEVICE_TYPE\n" +
-                    "FROM DM_ENROLMENT_OP_MAPPING AS opm\n" +
-                    "LEFT JOIN DM_OPERATION AS op ON opm.OPERATION_ID = op.ID \n" +
-                    "LEFT JOIN DM_ENROLMENT as en ON opm.ENROLMENT_ID = en.ID \n" +
-                    "LEFT JOIN DM_DEVICE as de ON en.DEVICE_ID = de.ID \n" +
-                    "LEFT JOIN DM_DEVICE_TYPE as dt ON dt.ID = de.DEVICE_TYPE_ID \n" +
-                    "LEFT JOIN DM_DEVICE_OPERATION_RESPONSE as ops ON \n" +
-                    "opm.ENROLMENT_ID = ops.ENROLMENT_ID AND opm.OPERATION_ID = ops.OPERATION_ID \n" +
-                    "WHERE opm.UPDATED_TIMESTAMP > ? \n" +
-                    "AND de.TENANT_ID = ? \n";
+            String sql = "SELECT opm.ENROLMENT_ID, opm.CREATED_TIMESTAMP, opm.UPDATED_TIMESTAMP, opm.OPERATION_ID,\n"
+                    + "op.OPERATION_CODE, op.TYPE OPERATION_TYPE, opm.STATUS, en.DEVICE_ID,\n"
+                    + "ops.RECEIVED_TIMESTAMP, ops.ID OP_RES_ID, ops.OPERATION_RESPONSE,\n"
+                    + "de.DEVICE_IDENTIFICATION, dt.NAME DEVICE_TYPE\n" + "FROM DM_ENROLMENT_OP_MAPPING opm\n"
+                    + "LEFT JOIN DM_OPERATION op ON opm.OPERATION_ID = op.ID \n"
+                    + "LEFT JOIN DM_ENROLMENT en ON opm.ENROLMENT_ID = en.ID \n"
+                    + "LEFT JOIN DM_DEVICE de ON en.DEVICE_ID = de.ID \n"
+                    + "LEFT JOIN DM_DEVICE_TYPE  dt ON dt.ID = de.DEVICE_TYPE_ID \n"
+                    + "LEFT JOIN DM_DEVICE_OPERATION_RESPONSE ops ON \n"
+                    + "opm.ENROLMENT_ID = ops.ENROLMENT_ID AND opm.OPERATION_ID = ops.OPERATION_ID \n"
+                    + "WHERE opm.UPDATED_TIMESTAMP > ? \n" + "AND de.TENANT_ID = ? \n";
 
             if (timestamp == 0) {
-                sql += "ORDER BY opm.OPERATION_ID LIMIT ? OFFSET ?";
+                sql += "ORDER BY opm.OPERATION_ID OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
             } else {
-                sql += "ORDER BY opm.UPDATED_TIMESTAMP asc LIMIT ? OFFSET ?";
+                sql += "ORDER BY opm.UPDATED_TIMESTAMP asc OFFSET ? ROWS FETCH NEXT ? ROWS ONLY";
             }
-
-
-
             stmt = conn.prepareStatement(sql);
-
             stmt.setLong(1, timestamp);
             int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
             stmt.setInt(2, tenantId);
-            stmt.setInt(3, limit);
-            stmt.setInt(4, offset);
+            stmt.setInt(3, offset);
+            stmt.setInt(4, limit);
 
             rs = stmt.executeQuery();