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PostgreSQL Exercises VS Qlik

Compare PostgreSQL Exercises VS Qlik and see what are their differences

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  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

PostgreSQL Exercises logo PostgreSQL Exercises

Education & Reference

Qlik logo Qlik

Qlik offers an Active Intelligence platform, delivering end-to-end, real-time data integration and analytics cloud solutions to close the gaps between data, insights, and action.
  • PostgreSQL Exercises Landing page
    Landing page //
    2026-05-03
  • Qlik Landing page
    Landing page //
    2023-06-28

PostgreSQL Exercises features and specs

  • Free and accessible
    PostgreSQL Exercises is completely free to use with no registration required, making it highly accessible to anyone who wants to practice SQL skills without any financial barrier.
  • Interactive practice environment
    The site provides a built-in SQL query editor where users can write and execute queries directly in the browser against a real database, getting immediate feedback on their results.
  • Progressive difficulty
    Exercises are well-organized into categories (basic, joins, aggregation, date, string, recursive) and progress from simple to complex, allowing learners to build their skills incrementally.
  • Realistic dataset
    The site uses a realistic country club management scenario with interconnected tables, giving learners practice with a coherent and relatable data model rather than abstract or disconnected examples.
  • Detailed solutions and explanations
    Each exercise comes with a detailed expected result set and a thorough explanation of the solution, helping learners understand not just what the answer is but why it works.

Possible disadvantages of PostgreSQL Exercises

  • Limited dataset scope
    The entire site relies on a single small dataset (a country club with members, facilities, and bookings), which limits exposure to diverse data modeling patterns and real-world complexity.
  • No user progress tracking
    Since there is no account system or registration, the site does not track user progress, making it difficult for learners to pick up where they left off or monitor their improvement over time.
  • PostgreSQL-specific syntax
    The exercises focus specifically on PostgreSQL syntax and features, which may not directly translate to other database systems like MySQL, SQL Server, or Oracle, potentially limiting transferability of learned skills.
  • Outdated design and interface
    The website has a dated visual design and user interface that lacks modern UX features such as syntax highlighting, auto-completion, or responsive mobile support, making it less pleasant to use compared to newer platforms.
  • Limited number of exercises
    The total number of exercises is relatively small compared to other competitive programming or SQL practice platforms, meaning advanced users may quickly exhaust the available problems.

Qlik features and specs

  • Data Integration
    Qlik offers powerful data integration capabilities, allowing users to pull in data from multiple sources, clean it, and prepare it for analysis. This is particularly useful for organizations dealing with diverse datasets.
  • Associative Data Engine
    Qlik's unique associative data engine enables users to explore data freely, without the limitations of traditional hierarchical or query-based models. This feature ensures that all data relationships are maintained and accessible.
  • Interactive Visualizations
    Qlik provides highly interactive and customizable visualizations, making it easier for users to derive insights and share findings. The visualizations are intuitive and can be tailored to meet specific business needs.
  • AI Capabilities
    The platform includes AI-driven features like Insight Advisor, which helps users uncover insights and generate analytics automatically. This reduces the learning curve and makes advanced analytics more accessible.
  • Scalability
    Qlik is designed to scale from small teams to large enterprises. It supports both on-premises and cloud deployments, making it flexible to meet various business sizes and infrastructure preferences.

Possible disadvantages of Qlik

  • Complexity in Initial Setup
    The initial setup and configuration of Qlik can be complex and time-consuming, often requiring specialized knowledge or professional services to get started effectively.
  • Cost
    Qlik can be expensive, especially for smaller businesses. The cost includes not just licensing fees but also potential expenditures on training, deployment, and maintenance.
  • Learning Curve
    Although Qlik offers a powerful feature set, there is a steep learning curve for new users. Mastering the platform's full capabilities can take significant time and effort.
  • Performance Issues
    In some instances, users have reported performance issues, particularly when dealing with extremely large datasets or complex queries, which can hinder real-time analysis.
  • Limited Third-Party Integration
    While Qlik does support integration with various third-party tools, it may not be as extensive as some other analytics platforms. This can limit its usefulness in a highly diversified technology stack.

Analysis of PostgreSQL Exercises

Overall verdict

  • PostgreSQL Exercises (pgexercises.com) is an excellent free resource for learning and practicing SQL through hands-on, interactive problems with immediate feedback, making it a valuable tool for anyone looking to sharpen their PostgreSQL skills.

Why this product is good

  • It offers a structured progression of exercises, from basic queries to advanced topics like aggregation, joins, string operations, recursive queries, and date manipulation
  • Each exercise runs against a realistic sample database (a fictional country club), giving practical context to the problems
  • It provides instant feedback and detailed explanations of solutions, reinforcing learning
  • The platform is completely free and requires no signup, so you can start practicing immediately
  • It focuses specifically on PostgreSQL, so you learn Postgres-specific syntax and features rather than generic SQL

Recommended for

  • Beginners who want to learn SQL fundamentals in a hands-on way
  • Developers and analysts who want to strengthen their PostgreSQL query skills
  • People preparing for technical interviews that involve SQL
  • Students supplementing coursework with practical exercises
  • Anyone transitioning to PostgreSQL from another database system

Analysis of Qlik

Overall verdict

  • Qlik is generally considered a good choice for data visualization and business intelligence needs.

Why this product is good

  • Flexibility
    Qlik's platform allows for self-service data discovery, guided analytics, and embedded analytics.
  • Integration
    Qlik integrates well with various data sources, making it versatile for diverse data environments.
  • User friendly
    Qlik offers an intuitive interface that caters both to advanced users and beginners.
  • Active community
    There is a strong community of Qlik users and developers who contribute to forums and share solutions.
  • Powerful analytics
    It provides robust analytics capabilities with associative data indexing, which lets users easily explore data.

Recommended for

  • Businesses seeking a comprehensive business intelligence tool.
  • Users who require a highly flexible, self-service analytics environment.
  • Organizations that need to integrate a wide array of data sources.
  • Companies looking for strong visual analytics capabilities.

PostgreSQL Exercises videos

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Qlik videos

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A Day in the life of a Qlik Cloud User

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  • Demo - Qlik Sense Product Tour

Category Popularity

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User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare PostgreSQL Exercises and Qlik

PostgreSQL Exercises Reviews

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Qlik Reviews

  1. Nik Vassev
    ยท Working at Guide IQ ยท
    Wow So Impresssed

    Qlik's associative data model makes data analytics seamless.

    Highly Recomend using this to anyone.

10 Best Alternatives to Looker in 2024
Qlik: Qlik sets itself apart with its associative analytics engine, enabling users to uncover trends and patterns through intuitive exploration without predefined queries. This offers a more flexible and dynamic analytical process.
Source: www.sigmacomputing.com
Top 11 Fivetran Alternatives for 2024
Qlik provides three data integration products - Stitch (covered under Stitch) Talend Data Fabric (covered under Talend) and Qlik Replicate, which was originally Attunity. Qlik Replicate has both on-premises and cloud replication deployment options for streaming real-time data.
Source: estuary.dev
The 7 Best Embedded iPaaS Solutions to Consider for 2024
Description: Qlik offers a range of integration capabilities that span four product lines. The flagship product is Qlik Replicate, a tool that replicates, synchronizes, distributes, consolidates, and ingests data across major databases, data warehouses, and Hadoop. The portfolio is buoyed by Qlik Compose for data lake and data warehouse automation and Qlik Catalog for...
Source: solutionsreview.com
25 Best Reporting Tools for 2022
QlikView is a classic Reporting Tool that provides analytical solutions and allows you to develop appealing visualization from the data. It is an Enterprise Tool that converts raw data into a meaningful format. Some features of QlikView are as follows:
Source: hevodata.com
Top 10 Visual Analytics Provider For 2021
With some of the most sophisticated array of visualisations, Qlik is a pioneer in visualisation analytics software. With Qlik Sense and QlikView, it helps with a wide range and unorthodox ways of presenting data. Its โ€˜associative analytics engineโ€™ in Qlik Sense moves away from a query-based approach and lets you explore data without any limitations. The engine lets you...
Source: analyticsindiamag.com

Social recommendations and mentions

Based on our record, Qlik seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

PostgreSQL Exercises mentions (0)

We have not tracked any mentions of PostgreSQL Exercises yet. Tracking of PostgreSQL Exercises recommendations started around May 2026.

Qlik mentions (1)

  • GME FTD - Moving Daily Avg.
    All files was pulled into a program called : QLIK, qlik.com is the company and my company uses it for our reporting and our customer's reporting needs. Source: over 5 years ago

What are some alternatives?

When comparing PostgreSQL Exercises and Qlik, you can also consider the following products

SQLBolt - SQLBolt provides a set of interactive lessons and exercises to help you learn SQL

Tableau - Tableau can help anyone see and understand their data. Connect to almost any database, drag and drop to create visualizations, and share with a click.

SQLZOO - SQLZoo includes tutorials and reference to support people learning SQL. It features:

Looker - Looker makes it easy for analysts to create and curate custom data experiencesโ€”so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.

Select Star SQL - Education & Reference

Sisense - The BI & Dashboard Software to handle multiple, large data sets.

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