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Building A Financial Website – Part 1 (Overview)

For those who live in this space where stock trading, foreign exchange (forex) trading, etc. is their daily bread, trading data/information comes in handy for them, but at the end of the day, developers like us have to build those platforms. The good thing about developers is that we get to work in a space … Continue reading Building A Financial Website – Part 1 (Overview)

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Building A Financial Website – Part 2 (Architectural Design)

It is very essential to have a mental picture of how the application will be structured and how the various components will interact with each other before proceeding to even write a single line of code. This point cannot be overemphasised especially in projects that involve other collaborators or programmers. If you are a lone … Continue reading Building A Financial Website – Part 2 (Architectural Design)

Finding Duplicate Records In a Database Table

Ideally business rules, that can be re-enforced at the database layer, should be implemented at the database layer to ensure that the integrity of the data can be relied on and does not lead to an unexpected behaviour from the application. Rules such as validation rules, e.g., which fields/columns cannot be null, etc. common sense … Continue reading Finding Duplicate Records In a Database Table

A Seamless “Move” To Transfer Money Between Mobile Wallets In Ghana Is Now Possible

A company that is silently making waves in the mobile financial services sector in Ghana has taken the bold step by coming out with a solution that every mobile money user would be dying to have, i.e. the ability to transfer money between the various mobile money operators (MMO) in the country. What it simply … Continue reading A Seamless “Move” To Transfer Money Between Mobile Wallets In Ghana Is Now Possible

A Regular Expression (RegEx) To Match Integers and Doubles

These regular expressions matches both the positive and negative variations of the data types specified below integers - e.g., 1, 89, 81223, -7, etc. floating point numbers (doubles or floats) - e.g., .0, 59.3, 300.12, -.87   The adopted approach was to avoid nested expressions which is not needed if it is only the number … Continue reading A Regular Expression (RegEx) To Match Integers and Doubles

Forcing Maven To Use The Local .m2 Repository

If each Maven run on a project results in always downloading dependency jars even though they have already been downloaded and stored in your local .m2 repository which is by default located at USER_HOME/.m2 e.g., on my Windows 10 machine, mine is┬áC:\Users\ransk\.m2, then you only have to instruct Maven to operate in an offline mode. … Continue reading Forcing Maven To Use The Local .m2 Repository

Import An Oracle Dump File

These are the steps I normally follow when restoring Oracle dump files for the purposes of my work. I prefer to logically keep the restored entities logically and physically separate through the use of tablespace and associated datafile(s) respectively. Create and assign the user to the earlier defined tablespace. If I want the created user … Continue reading Import An Oracle Dump File