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Business Intelligence (BI) Developer with SQL Salary in 2024

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Total:
49
Median Salary Expectations:
$4,600
Proposals:
1

How statistics are calculated

We count how many offers each candidate received and for what salary. For example, if a Business Intelligence (BI) developer with SQL with a salary of $4,500 received 10 offers, then we would count him 10 times. If there were no offers, then he would not get into the statistics either.

The graph column is the total number of offers. This is not the number of vacancies, but an indicator of the level of demand. The more offers there are, the more companies try to hire such a specialist. 5k+ includes candidates with salaries >= $5,000 and < $5,500.

Median Salary Expectation – the weighted average of the market offer in the selected specialization, that is, the most frequent job offers for the selected specialization received by candidates. We do not count accepted or rejected offers.

Business Intelligence (BI)

Business intelligence (BI) is the term used for analysis by SQL specialists, typically yielding status reports for the business. Data analytics grew from BI, partly because the need for reporting and analysis became more frequent and dynamic, but also because most company data now resides in the cloud – in a data warehouse and on a customer data platform (CDP) – and tools to administer these systems became easy to use by people other than SQL specialists, such as data analysts. Understanding the differences between data analytics and business intelligence is essential to operating a profitable business that deploys data in the 21st-century way.

Using both BI and data analytics should help you to better understand the day-to-day execution of your business, and improve your decision-making process.

What is business intelligence and new trends?

At its most basic, business intelligence is defined as the collection, storage, and analysis of input received from different operations in an organisation. Although the entire purpose of BI is to track the overall direction and movements of an organisation, as well as providing and suggesting more informed decisions from data, it does so by producing reports for managers that would help them in their decisions. For instance, these reports can give insights on what’s going on inside the business, but can also be solely about external aspects surrounding the business, for example, in creating an analysis of a market in which they have a desire of venturing into.

What tends to happen with BI is to provide explanations of why the business is in the state it is – as well as presenting some perspective on how operations have grown over time. BI uses facts from recorded business data to help interpret the past, which means that company officials can move ahead with a better grasp of the company’s journey and where it is heading. Business intelligence is often also required to ‘play out’ various scenarios to assist with business planning. For example: ‘What will happen to signups if we raise our prices?

In day-to-day business operations, a system that would produce such reports was a traditional system of what was then known as ‘business intelligence’. And because stakeholders would require such reports on a regular basis – every month, or every quarter – producing the same report over and over again was a tedious task for the so-called business intelligence analysts. Today’s Business Intelligence, however, relies largely on automated regular reports, which are often generated by in-house data analytics, so that in the modern sense data analytics is an integral part of business intelligence.

Behind Business Intelligence (BI)

Approach is a set of technologies which are helping companies to collect and analyze data from business operations, and following actionable insight, they are using such insight to make sustainable business decisions. With the ever-growing amounts of data, it can be highly beneficial for the procurement stream to acquire some kind of understanding in business intelligence tools in order to start forming its current strategy and future strategic decisions. Through this write up, I’m offering to cover the essence behind the term, along with some further explanation with examples to provide. I am also trying to cover the related and relevant topics, and most importantly I will try to answer any possible questions you may continue to have with regards to business intelligence.

The definition of Business Intelligence

Often confused with business analytics, business intelligence (BI) is an umbrella term for the processes, methods, and software that collects both internal and external data, structured and unstructured, and processes them for further analysis. Users are then able to draw conclusions from the data by means of reports, dashboards, and data visualization.

Formerly the preserve of data analysts, business intelligence software is spreading and becoming accessible to wider circles. Businesses are becoming truly ‘data driven’. The accelerating spread of the large-data revolution gives businesses everywhere a chance to squeeze the full potential of digital transformation, via enhanced operational advantages.

However, Business Intelligence (and related notions such as machine learning, artificial intelligence…) not only aims at best optimizing the processes or at increasing the performances of the entity, it also helps to guide, speed up and to improve the decisions made by the company and based on real-time actual metrics.

These applications are now referred to as essential tools for companies to get an overview of the business, to discover market trends and patterns, to track sales and financial performance, to set up key performance indicator monitoring, to boost performance and many other things. In other words, this data, if used well, is one of the main resources for gaining competitive advantages.

How does Business Intelligence work?

Business Intelligence is based on four stages which are: Data Collection , Data Storage , Data Distribution and Use.

  • Collection: Initially, ETL (Extract, Transform, and Load) tools are used to collect, format, cleanse, and combine all the data, regardless of the source or form of appearance. This raw data comes from various sources, including company information system (ERP[2]), its customer relationship management (CRM) tool, marketing analysis, call center, etc.
  • Storage: Once aggregated, this data is then stored and centralized in a database, whether hosted on a server or in the cloud. This is called a data warehouse or a data mart.
  • Distribution: The principle here is to distribute to the company’s internal partners everything that is created in the decision support platform. There are many new varieties of BI emerging, which use all of the characteristics of web 2.0 and therefore allow access to information used for decision-making to an even broader audience.
  • Use: Various tools are used depending on the needs. For example, for multidimensional data analysis, there are OLAP (Online Analytical Processing) tools, for correlation search there are data mining tools, for performance communication there are reporting tools, for performance management there are dashboards and so on.

Business Intelligence technology to support procurement

But by giving procurement departments access to new Business Intelligence tools, they should be able to produce summary data that is accurate and relevant regarding both their corporate expenditure and their supplier base – such as actual and forecast turnover, contact and dispute histories, negotiated prices, the organization of contracts, and so on.

They can imagine and mine it quickly, and then communicate it in a digestible, understandable form to all, as well as use it as an input to inform business decisions as part of their sourcing strategy – to get better outcomes.

BI functionality allows them to give supplier performance benchmarks, score tenders, select suppliers according to multiple selection criteria in the application of Lean Procurement, etc.

In addition to this decision support, buyers also enjoy operational efficiency gains: procurement departments are notorious for lagging in terms of digitalization, and despite the benefits they could bring, buyers still spend almost three-quarters of their time on purely transactional or operational activities[2]. In this sense, such a solution makes total sense.

To take one example, the Itochu Corporation, a Japanese global trading company, says it has cut the time needed to produce its monthly reports by 92 per cent using BI tools[3]. That is a figure that any buyer today should sit up and take notice of.

Ultimately, such software makes communication between procurement departments and the wider company easier and more effective; armed with data and figures, they can work in tandem with other divisions, particularly finance, and also try to define their strategic footprint within the organization.

Resistance to BI

But such technology is not easy to develop. Two formidable challenges stand in the way.

  • Complexity of use: At the beginning, the use of Business Intelligence implies profiles with technical skills, analysts, architects, or even developers specialized in BI. Nevertheless, the solutions in the market today are increasingly aimed at all staff in an organization, at the managerial and operational personnel. Easy both to use and interpret, they are now tuned so that the management tools can be tailored. The business user is beginning to see the rise of ‘self-service BI’.
  • Quality, reliability, and usefulness of data: Second, the quality, relevance, and value of the data can themselves become a barrier, for instance, if the supplier selection process is not managed in a centralized way or not validated by procurement departments. It is thus essential that the collection be prepared and the databases organized before posing any queries.

Data is the 21st century gold, ie one of the most strategic resources for a company. No surprise then that, in addition to the logical quality, the era of Big Data is quickly turning into the era of Smart Data. In fact, towards a real Purchasing Intelligence approach. Business Intelligence programs can go even further by integrating predictive analytics, data, or text mining tools, etc., and thanks to BI capabilities, it’s up to the procurement function to aim for a Purchasing Intelligence approach in order to optimize the performance of the company.

Where is SQL used?


E-commerce Personalization



  • SQL turns into a retail whisperer, nudging databases to reveal your shopping kryptonite to tailor those pesky ads.


The Matchmaker Databases of Dating Apps



  • SQL plays cupid, sifting through zillions of profiles to find your potential 'swipe right' using complex JOINs for your happily ever after.


Gaming Industry’s Secret Sauce



  • In the gaming realm, SQL is the loot box that spawns monster stats and keeps track of who's looting too much cheese.


Financial Forecasting Wizardry



  • Abracadabra! SQL waves its wand to turn numbers into charts, helping bankers predict if it's going to rain money or financial frogs.

SQL Alternatives


MongoDB


MongoDB is a NoSQL database program using JSON-like documents with optional schemas. It suits large-scale data storage, real-time analytics, and rapid development.



// SQL:
SELECT * FROM users WHERE age > 25;
// MongoDB:
db.users.find({age: {$gt: 25}})


  • Schema-less: Flexibility in data representation.

  • Horizontal scalability: Can handle large data sets.

  • Performance: Fast queries for unstructured data.

  • Complex transactions: Less ACID-compliant than SQL.

  • Join operations: Not as straightforward as SQL.

  • Consistency: Eventual consistency can be an issue for some applications.



Redis


Redis is an in-memory data structure store used as a database, cache, and message broker supporting varied data structures.



// SQL:
UPDATE sessions SET data = 'new_data' WHERE session_id = 'XYZ';
// Redis:
SET session:XYZ "new_data"


  • Performance: Extremely fast due to in-memory computation.

  • Flexibility: Supports various data structures.

  • Simple design: Easy to use for caching.

  • Persistence: Less durable than disk-based databases.

  • Memory usage: Can be costly for larger datasets.

  • Data size: Limited to available memory.



Cassandra


Apache Cassandra is a distributed NoSQL database handling large amounts of data with no single point of failure, ensuring high availability.



// SQL:
SELECT * FROM users WHERE last_name = 'Smith';
// Cassandra:
SELECT * FROM users WHERE last_name = 'Smith' ALLOW FILTERING;


  • Scalability: Efficiently scales out across multiple nodes.

  • High availability: Designed for fault tolerance and replication.

  • Write performance: Fast writes due to log-structured design.

  • Consistency: Tunable, but can be complex to manage.

  • Query support: Less flexible query language compared to SQL.

  • Learning curve: Steeper due to unique architecture and design principles.

Quick Facts about SQL


SQL: A Relic of Database Chatter!


Way back in 1974, a group called the IBM San Jose Research Laboratory birthed what would become the chatty Cathy of database languages, SQL. Amidst the groovy era, Donald D. Chamberlin and Raymond F. Boyce waltzed in with what they dubbed SEQUEL, later renamed to avoid a scuffle with a trademark. Their brainchild has ever since been the go-to gabfest for database die-hards, letting folks yammer with tables and queries.



SQL's "Stand-Up" Act in '86!


In the neon glow of the 80s, specifically 1986, SQL got its big break when the American National Standards Institute (ANSI) gave it a standing O as a standard. Its encore? The International Organization for Standardization (ISO) followed suit in 1987. This was SQL’s version of going platinum, turning it from cool kid on the block to the lingua franca of database dialects worldwide.



The Ever-Sprouting SQL Sycamore!


SQL is like that one tree in your yard that keeps sprouting new branches. Since it burst onto the scene, it's had a makeover more times than a reality TV star. With each new rendition – from SQL-89 to SQL:2019 – it's packed in more tricks, like handling JSON data, recursive queries, and window functions. It's fair to say, SQL's growth spurt is far from over.




-- Ye olde SQL whispering spells to conjure up employee names:
SELECT first_name, last_name
FROM employees;


And so, dear database wizards, venture forth and sling SQL spells with the wisdom of its quirky past!

What is the difference between Junior, Middle, Senior and Expert SQL developer?







































Seniority NameYears of ExperienceAverage Salary (USD/year)Quality-wiseResponsibilities & Activities
Junior SQL Developer0-250,000-70,000Learning and mastering basics

  • Writing simple SQL queries

  • Assisting in database maintenance

  • Debugging straightforward code issues


Middle SQL Developer2-570,000-90,000Refining skills, taking on complex tasks

  • Designing normalized database schemas

  • Optimizing queries for performance

  • Implementing stored procedures and functions


Senior SQL Developer5-1090,000-120,000Expert problem-solving, mentoring

  • Conducting code reviews

  • Designing complex architectural solutions

  • Leading project development cycles


Expert/Team Lead SQL Developer10+120,000+Strategic planning, leadership

  • Setting technical direction for projects

  • Mentoring team members

  • Managing stakeholder requirements



Top 10 SQL Related Tech




  1. SQL Dialects: The Tower of Babel in Database Land



    SQL dialects are like the various accented English spoken around the world – you think everyone understands you until you ask for "tomatoes" in a British grocery store. Get familiar with the quirks of each – be it T-SQL for Microsoft's SQL Server or PL/SQL for Oracle. They all promise to organize your data, but they'll each do it with their own flair.




  2. SQL Server Management Studio (SSMS): The Swiss Army Knife



    SSMS is the go-to toolkit for anyone who needs to meddle with SQL Server databases. It's like walking into a data dungeon with a glowing sword of insights, allowing you to query, design, and manage your databases and data warehouses with the elegance of a knight at a medieval banquet.




  3. MySQL Workbench: Your SQL Soulmate



    MySQL Workbench is the blind date that went surprisingly well. Originally unsure about its awkward interface, developers soon find it comforting, helpful, and powerful for designing, modeling, and managing MySQL databases. Plus, it's great for visual types who like to draw out their database relationships rather than spell them out.




  4. PostgreSQL: The Elephant in the Room



    PostgreSQL, affectionately known as Postgres, is the wise old elephant that never forgets a datum. It's comprehensive, robust, and has more features than a Swiss knife. It's the go-to for developers looking for more than just a data storage system but a full-fledged relational experience with toys like JSON support and concurrency without read locks.




  5. SQLite: The Minimalist's Dream



    SQLite is the pocket-sized, low-maintenance pet you never knew you needed. Lives directly in apps with zero configuration, it's like a simple notepad for your data – no frills, just writes and reads. And it’s so lightweight, you can almost forget it's there...until you need that crucial piece of data while offline in a remote forest.




  6. Microsoft Azure SQL Database: The Cloud Juggler



    Microsoft Azure SQL Database is like hiring a cloud that follows you around all day, holding your data. It scales on-demand, backs up your life automatically, and promises a 99.99% up-time, which is more reliable than your average superhero.




  7. Oracle Database: The Ancient Reliquary



    This is the granddaddy of databases, so mature and feature-rich that it's like a walking encyclopedia of data management knowledge. However, be ready to dedicate a significant chunk of your life to studying its ancient texts and offerings if you wish to unlock its full potential.




  8. ORMs (Object-Relational Mapping): The Translator



    ORMs are like that friend who knows just a little too many languages. They translate your object-oriented languages such as Python, Ruby, or JavaScript into SQL so smoothly that you might forget that not everyone speaks "Database" natively. Some crowd favorites are Hibernate, Entity Framework, and Sequelize.

    // Example in JavaScript with Sequelize
    const User = sequelize.define('user', {
    username: Sequelize.STRING,
    birthday: Sequelize.DATE
    });

    User.create({
    username: 'techwizard',
    birthday: new Date(1991, 0, 1)
    });




  9. NoSQL Databases: The Nonconformist's Choice



    On the opposite side of the strict traditional SQL databases, NoSQL came along like a rebellious teenager refusing to fit into rows and columns. Think MongoDB or Cassandra, perfect for when your data is more "free-spirit" than "strict librarian" and doesn't like being boxed in by schemas.




  10. Data Visualization Tools: SQL's Crystal Ball



    Once you've queried your heart out and have the data, tools like Tableau or Microsoft Power BI help you peer into the crystal ball to make sense of it all. These tools are the fortune tellers in the SQL world, turning numbers and strings into prophetic insights via charts, graphs, and dashboards.



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