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Understanding Objects in Computer Programming

Objects are a key element in computer programming. While objects are at center stage in Object Oriented Programming, they are widely used in procedural languages and serve as the building blocks of complete applications * Let’s understand objects!

What is an Object?

Simply put, an object is any “thing” you can actually see, physically.

For example, a person, a car, a pencil, a circle – are all physical objects.

Extending our perception of object to understand how objects are used in computer programming, an object can also offer a well-defined service: A Government...

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Excel is slow? Here are possible causes and ways to make Excel run faster

You’ve spent days in perfecting your Excel model. Sophisticated formulas spanning multiple Workbooks are generating the results you need. But it is now heavy with long delays and response times. What could be the reason and what can you do about it?

The magic of live formulas has its toll

No doubt one of Excel’s magic is the “live grid” in which formulas connect cells, charts and formatting for real-time calculations and rendering. It Is so appealing, that we tend to forget that maintaining the web of connected cells requires resources. Compute and memory resources.

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Scheduling Automatic Excel VBA Programs for Uninterrupted Execution

Ever needed to run an Excel Macro every day automatically? I mean, without leaving Excel open or interacting with Excel at all. Here’s how you do this taking advantage of two technologies that comes with Windows

Why schedule a daily silent job?

In one of my customer’s project that manages trainings and certifications, employees receive email and SMS notifications on various events: upcoming training reminders, training result (with a certificate attached), change of instructor, training assessment reminders etc.

The technique for doing that is using a queue. All notifications...

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Can Excel serve as a Database?

Excel offers large Worksheets. Data can be arranged and stored flexibly, searched and acted upon. Do we have a Database here? * Let’s sort out Excel as a Database.

What is a Database?

Simply speaking, a database is any structure in which data is to be arranged along with tools to store, manipulate and retrieve the data.

Several such pre-configured “data arrangements” are available as products, each developed in its time to solve data-related challenges. Let’s mention a couple.

Relational Database: In a relational database data is arranged in tables with relations...

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Excel VBA: Restoring the State of the Application Before Returning Control to the User

When your VBA code finished its task and control is returned to the user – be sure to restore protection, hide Worksheets, enable events, reset the mouse cursor and turn on screen updating * here’s a Sub that will take care of that

A controlled environment for the user

The flexibility, diversity and power of Excel makes it a generic tool for almost any task. However, this richness of options and openness can put your data and business at risk.

Consider a large table you maintain in Excel. Mistakenly, you mis-typed a date to be: 05/10/20020. You didn’t notice. That row is...

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The Power of SQL Applied to Excel Tables for Fast Results

If you ever needed to query Excel tables (and who hasn’t) from your VBA programs that contained thousands of rows, or join multiple tables in the process – this is the Blog post you’ve been waiting for * Write complex SQL queries over Excel tables as if they were stored in a relational database

Do SQL and Excel go together?

YES!

SQL is the most popular Databases language. It is robust, proven and works with extremely large tables stored in any common relational Database software. If you want to learn more about Databases and SQL – read my last week’s Blog post...

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Excel VBA User Forms – A Game Changer

What separates an Excel model from a professional business application? Besides good programming practices it’s the user experience * Excel VBA User Forms allow you to deliver mission-critical business applications that will make your customer WOW.

Today I launched my third course in the Computer Programming and Databases with Excel VBA and SQL program.  This course, titled Beyond Excel Boundaries with User Forms: Deliver a Professional User Experience, covers User Forms implementation as the user interface for Excel-based business applications.

This launch today made it an easy...

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105 Excel VBA Functions Explained: My New Course Launched Today

What makes this course unique * What is this course about * What did it take to produce this course * Is this course right for you?

Not that I planned to launch this new course when everybody is glued to the computer screen waiting for the Corona scare to pass by, but today is the day, and it’s out!

Those of you who follow me for a while, already know the wide portfolio of services and products I offer, all about developing business software with Excel VBA and leading many others to become such consultants.

IF you’ve completed my flagship course: Computer Programming with Excel...

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Excel VBA: Late Binding or Early Binding?

When using external function libraries in VBA, you need to choose between late biding and early biding * What is it, why chose one over the other and how is it done properly?

When the offered VBA functionality is not enough

With VBA you can flexibly write just the code you need for your program. It is a flexible, functional programming language that is also aware of the Excel Object Model. You can easily access and manipulate almost all of the Excel objects: Worksheets, Cells, Charts, Tables, Shapes, Printing settings and much more.

However, there are objects and tasks that are not readily...

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Dashboards as a Trigger and Entry Point to Operational Transactions

Dashboards typically come from the Business Intelligence world. Updating the operational DB come from the transactional world. Why not connect the two for a full insight-to-action experience?

In a project I delivered this week to a new customer in Australia, it hit me that I have combined dashboards with updating data records for long time. Intuitively, as I envision the customer’s line of thought, I usually allow the user to cross the lines and open an update screen straight from a dashboard.

What’s the Big Deal?

In the traditional data-centric approach to business information...

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