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Blogs by Andrew Gould

Showing blogs 1-20 (out of 78)

Pivoting Data in SQL Server

Posted by Andrew Gould on 09 June 2014 | no comments
Using the Pivot operator in SQL Server allows you to create basic pivot tables from your query results. This blog teaches you how to create simple, static pivots, crosstab-style tables and exciting, dynamic pivot tables.
Tags:   SQL / Dynamic SQL   |   SQL / CTEs, subqueries

Flappy Bird in Excel VBA Part 13 - Playing Sounds

Posted by Andrew Gould on 24 April 2014 | no comments
This part of the tutorial explains how to add sounds to the game using a Windows API function.
Tags:   VBA macros / General

Flappy Bird in Excel VBA Part 12 - Managing Game State

Posted by Andrew Gould on 24 April 2014 | no comments
This part of the tutorial implements a state system to make it easier to determine what actions to perform each time the game updates.
Tags:   VBA macros / General
In this part of the tutorial you'll learn how to make the game detect collisions between the bird and the obstacles.
Tags:   VBA macros / General

Flappy Bird in Excel VBA Part 10 - Creating Obstacles

Posted by Andrew Gould on 24 April 2014 | no comments
This part of the tutorial shows you how to add obstacles to the game and how to make them move across the screen.
Tags:   VBA macros / General
This part of the tutorial explains how to generate a game worksheet using code to define the playing area.
Tags:   VBA macros / General

Flappy Bird in Excel VBA Part 8 - Using Class Modules

Posted by Andrew Gould on 24 April 2014 | no comments
This part of the tutorial introduces the concept of class modules and shows you how to use them to organise your code.
Tags:   VBA macros / Classes

Flappy Bird in Excel VBA Part 7 - Creating Sprites

Posted by Andrew Gould on 11 April 2014 | no comments
This part of the tutorial describes how to draw simple images using a worksheet as the canvas. You'll also see how to include the images in the game.
This part of the tutorial describes how to respond to keys pressed by the player. You'll learn about the Application.OnKey method and the GetAsyncKeyState Windows API function.
This part of the tutorial adds a basic menu system with ActiveX command buttons to start and stop the game.

Flappy Bird in Excel VBA Part 4 - The Game Timing Loop

Posted by Andrew Gould on 11 April 2014 | no comments
This part of the tutorial describes how to set up a timing loop which allows the game to update continuously.
This part of the tutorial describes how to make use of Windows API functions to extend the power of Excel VBA.

Flappy Bird in Excel VBA Part 2 - Basic Workbook Setup

Posted by Andrew Gould on 11 April 2014 | no comments
This part of the tutorial describes how to setup a basic workbook ready for you to start coding the Flappy Owl game.

Flappy Bird in Excel VBA Part 1 - Introduction

Posted by Andrew Gould on 11 April 2014 | no comments
This part of the Flappy Bird in Excel VBA Tutorial introduces you to the Flappy Owl game and provides download links and instructions to get it running in Excel on your machine.

Flappy Bird in Excel VBA - Tutorial Index

Posted by Andrew Gould on 11 April 2014 | no comments
This is the main index page for the Flappy Bird in Excel VBA tutorial. Here you can find links to all of the articles which comprise the tutorial.

Triggers in SQL Server

Posted by Andrew Gould on 27 November 2013 | no comments
Triggers are special stored procedures that execute automatically in response to certain events in a database. This blog explains how to create three types of trigger in SQL Server: DML, DDL and Logon triggers.
Tags:   SQL / General

Transactions in SQL Server

Posted by Andrew Gould on 11 October 2013 | no comments
This blog examines how to use Transactions in Microsoft SQL Server to allow you to control when data changes are committed to the database. You'll also discover how you can rollback transactions, effectively giving you the chance to undo changes to your data.
Tags:   SQL / Transactions

Deleting and Updating Records in SQL

Posted by Andrew Gould on 08 May 2013 | no comments
This blog teaches you how to modify existing data in your database by either deleting records or updating them.
Tags:   SQL / Transactions

Output Parameters and Return Codes in SQL Server

Posted by Andrew Gould on 26 April 2013 | no comments
This blog teaches you how to return values from your SQL stored procedures using two different techniques: return codes, and output parameters.
Tags:   SQL / Stored procedures

Problems with Shared Datasets and Subreports in SSRS

Posted by Andrew Gould on 23 April 2013 | no comments
If you're using shared datasets to populate subreports in Reporting Services you might have encountered an error when you preview your reports. This short blog explains what the problem is and offers a few simple suggestions to work around the issue.
Tags:   SSRS / Lists, subreports
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