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dbswdevelop

Hi all.
Mi name is Tomas Eroles.

Professional

At this moment I'm unemployed, and, of course, available for a job on programming, also for freelance projects.
My main skill ara databases and develop software with MS Access and VBA (I'm an expert using this tool), but what matters is to know about programming and analysis. As a (almost) Systems Engineer, I may learn others languages.
I know VB.NET, HTML+PHP, GAMBAS, and other programming languages, but I'm not so good than with Access.

Personal

I was born in the city of Barcelona in 1974, and moved around 200 km to south with my family when I was 5, to the nice city of Vinaròs.

I'm finishing my studies on Systems Engineering.
I'm married, and we have two little daugthers.
I love computers, technology, travel with my family, and cook.

This is a blog about Databases, Software, and Development.

The main tag will be MS Access. I've been using this software since 1994, after some years using the xBase products (dBase III+, dBase IV from Ashton-Tate and Clipper from Nantucket).

I will appreciate your comments, and I will try to answer them.

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How to export data from access to a text file

Introduction Hi all Today's post is about a set of functions to export data from Access to text files. I wrote the next functions years ago, when working on a big project and I had to export some of my data to another system, by text files, regularly. I needed something easy for the users, and transparent. I will explain what I did, and how. At the end of this post you will find a link to download the example of code. Feel free to modify it. Sometimes it happens that we need to export data. Of course, almost always we may write to another database. As I said before, I wrote this code to cover a need. This is a brief: I've been working for a company who mades canned fish. They had their ERP software, made by a external firm, and mantained across more than 20 years. When I entered, I had to write a software to control the production process and traceability. Of course, my processes (my software) was a subset of all the other software, and they had to communicate th...
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How to manage data in forms using only VBA. And why. How to use System Windows and stored files.

Introduction Hi all! Today's subject is about how to use a form to manage data using only VBA. As you know, manage forms with data in Access is very easy, practical, and may be done from the first minute. When you build a data source, a table or a query, you may create a form linked to them. This means that Access will do all the tasks related to manage the data, and when the form will be opened it will show those data automatically. This is very useful, especially when the user is a beginner, or just when neither the time nor security are really important. I will try to explain myself better. When we use the wizard to build a form, it fills automatically the RowSource property for the form, and the same for each field. As I said, this is useful, but may have some problems: When there are a big amount of records (more than 250.000) and/or a big amount of fields, the load process may be a little bit slow, and also if the form shows a large set of records or it has to sel...
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How to develop a carousel

Introduction Hi all! This week's post is a mix of part of the previous made practical. I will make grow the present example in following posts. We have seen how to organise an application, how to manage attached files, and how to work with options. This week we will join some of those characteristics to develop a Carousel. This is an example I've made some years ago to help a user with a carousel for used cars. It's made thinking on the spanish market, and I've used the plate number usual in Spain, that is, a number between 0000 and 9999 and three characters B-Z (avoiding the vowels). It's made with Access 2003. What is a carousel and when may be useful? A carousel is a form to show images, pictures, and when is loaded shows, automatically, a picture each time. In this case is each 5 seconds (5000 milliseconds). This may be useful, for example, in a business where you want to show photos of your goods to your customers: used cars, real estate..., that can...
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