diff --git a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
index c6d0e80..56611d7 100644
--- a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
+++ b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
@@ -1,3 +1,8 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Design;
+using System.Linq;
+
 namespace SQLiteRepository
 {
     internal static class SQLiteProcedures
@@ -60,6 +65,9 @@ namespace SQLiteRepository
         public const string GET_CARDS_BY_UNIQUE_ID =
             "select * from " + nameof(CardUniqueId) + " where " + nameof(CardUniqueId.CardUId) + "=?";
 
+        public const string GET_CARDS_BY_UNIQUE_ID_LIST =
+            "select * from " + nameof(CardUniqueId) + " where " + nameof(CardUniqueId.CardUId) + " in (#IN#)";
+
         public const string GET_UNASSIGNED_CARD_LIST =
             "select * from " + nameof(CardUniqueId) + " where " + nameof(CardUniqueId.UserId_FK) + "=?";
 
@@ -112,12 +120,18 @@ namespace SQLiteRepository
         public const string UPDATE_GROUP = "update " + nameof(GroupDb) + " set " + nameof(GroupDb.GroupName) +
                                            "=? where " + nameof(GroupDb.GroupId) + "=?";
 
+        public const string GET_GROUP_BY_NAME =
+            "select 1 from " + nameof(GroupDb)+" where "+nameof(GroupDb.GroupName)+"= ?";
+
         public const string GET_TIMELOG_ENTRY =
             "select * from " + nameof(TimeLogDb) + " where " + nameof(TimeLogDb.Id) + "=?";
 
         public const string DELETE_TIMELOG_ENTRY =
             "delete from " + nameof(TimeLogDb) + " where " + nameof(TimeLogDb.Id) + "=?";
 
+        public const string DELETE_TIMELOG_ENTRIES = 
+            "delete from " + nameof(TimeLogDb) + " where " + nameof(TimeLogDb.Id) + "in (#IN#)";
+
         public const string UPDATE_TIMELOG_ENTRY = "update " + nameof(TimeLogDb) 
                                                        + " set " + nameof(TimeLogDb.UserId_FK) + "=?, " 
                                                        + nameof(TimeLogDb.Direction) + "=?," 
@@ -128,5 +142,25 @@ namespace SQLiteRepository
                                                        + "where " + nameof(TimeLogDb.Id) + "=?";
 
         public const string GET_DB_VERSION = "select * from DbVersion";
+
+        /// <summary>
+        /// This works on the tokenisation of the query string.
+        /// where the list of params is to be inserted, the query should have #IN#
+        /// </summary>
+        /// <param name="query">the query to add the list of parameters to</param>
+        /// <param name="args">the parameters to add to the query.</param>
+        /// <returns></returns>
+        public static string FormatInQuery(string query, List<string> args)
+        {
+            if (!query.Contains("#IN#"))
+            {
+                throw new ArgumentException("query doesnt contain any #IN# tokenisation");
+            }
+            //Convert to a comma separated list e.g.: val1,val2,val3
+            //but we need to use string.. so.. enclose in single quotes 'val1','val2'..etc
+            var argsFormatted = string.Join(",", args.Select(x=>$"'{x}'")); 
+
+            return query.Replace("#IN#", argsFormatted);
+        }
     }
 }
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