Develop an interface for interacting with a database

Develop NetLogics that: insert values into the database, query the database, and display the query results.
Application example
TIP:
You can download a sample project from:
 InteractWithDatabase.zip
Prerequisites
  • In
    FactoryTalk Optix Studio
    , select
    Run
     to run the project using the client emulator to test your project. To run the project on a remote client, see Add a client device.
  • Expand the project by adding more interface elements and
    Insert
    ,
    Update
    ,
    Delete
    , and
    Select
     methods. 
        [ExportMethod]
    public void Insert(int value) {
        var values = new object[1,2];
        values[0,0] = DateTime.Now;
        values[0,1] = value;
        myTable.Insert(dbColumns, values);
        Log.Info("Insert","Inserted value: " + value.ToString());
    }

    [ExportMethod]
    public void Update(int value, DateTime timestamp) {
        Object[,] ResultSet;
        String[] Header;
        myStore.Query("UPDATE Demo SET Value = " + value + " WHERE Timestamp = \"" + timestamp.ToString("o", CultureInfo.InvariantCulture) + "\"" , out Header, out ResultSet);
        Log.Info("Update", "Updated last record");
    }

    [ExportMethod]
    public void Delete(int value) {
        Object[,] ResultSet;
        String[] Header;
        myStore.Query("DELETE FROM Demo WHERE Value<=65535 ORDER BY Timestamp DESC LIMIT 1", out Header, out ResultSet);
        Log.Info("Delete", "Deleted last record");
    }

    [ExportMethod]
    public void Select(out int value) {
        Object[,] ResultSet;
        String[] Header;
        myStore.Query("SELECT * FROM Demo ORDER BY Timestamp DESC LIMIT 1", out Header, out ResultSet);
        value = Convert.ToInt32(ResultSet[0,1]);
    }
    You can download a sample project from:
     InteractWithDatabaseExpanded.zip
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