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D (Programming Language) VS SQLified

Compare D (Programming Language) VS SQLified and see what are their differences

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D (Programming Language) logo D (Programming Language)

D is a language with C-like syntax and static typing.

SQLified logo SQLified

Convert CSV, TSV & delimited files to SQL — in your browser
  • D (Programming Language) Landing page
    Landing page //
    2023-05-09
  • SQLified Landing page
    Landing page //
    2026-07-03

SQLified is a browser-based tool that converts CSV, TSV, and other delimited data files into clean, import-ready SQL —CREATE TABLE plus batched INSERT statements — for PostgreSQL, MySQL, SQLite, and SQL Server.

Unlike free one-off converters that choke around 100K rows, SQLified is built for production-scale loads: it reliably handles files of 1,000,000+ rows. It does smart type inference (INT/BIGINT, NUMERIC scale, dates, booleans, currency), lets you override any column's type, primary key, and nullability, and emits correctly chunked INSERT batches per dialect (including SQL Server's 1000-row limit and MySQL packet limits) so the output imports cleanly the first time.

Free to use for everyday conversions; Pro unlocks the largest files, batched output tuning, and an ad-free experience. A product of Octet Software.

D (Programming Language) features and specs

  • Performance
    D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
  • Expressiveness
    D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
  • Memory Safety
    D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
  • Interoperability
    D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
  • Built-in Unit Testing
    D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
  • Concurrency
    D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages of D (Programming Language)

  • Adoption
    D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
  • Toolchain Maturity
    While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
  • Learning Curve
    D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
  • Garbage Collection
    Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
  • Ecosystem
    The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
  • Standard Library Documentation
    The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

SQLified features and specs

  • Simplified SQL Learning Curve
    SQLified appears designed to make SQL querying and database management more accessible to users with varying skill levels, reducing the complexity typically associated with writing raw SQL queries.
  • Visual Interface
    The tool likely offers a visual or intuitive interface for constructing queries, which can help users who are not deeply familiar with SQL syntax to still interact effectively with databases.
  • Time Efficiency
    By streamlining query construction and database operations, SQLified can help users save time compared to manually writing and debugging SQL code from scratch.
  • Accessibility for Non-Technical Users
    The platform may enable business analysts, product managers, or other non-technical stakeholders to query databases without needing deep SQL expertise.
  • Reduced Error Rate
    Guided or assisted query building can help minimize common syntax errors and mistakes that occur when writing SQL manually.

Analysis of D (Programming Language)

Overall verdict

  • Overall, D is a solid programming language choice that balances performance with productivity. It may not be as widely adopted as some other languages, but it has a dedicated community and continues to evolve, making it a viable option for various programming tasks.

Why this product is good

  • The D programming language is considered good by many developers for various reasons. It combines the performance and low-level control of C/C++ with the expressive power and ease of use found in modern languages. D offers features like garbage collection, first-class functions, and compile-time function execution, providing both speed and flexibility. Its interoperability with C, the convenience of a powerful standard library (Phobos), and the availability of packages via the DUB package manager make it a practical choice for systems programming, application development, and rapid prototyping.

Recommended for

  • System programming enthusiasts looking for an alternative to C/C++
  • Developers interested in writing high-performance applications
  • Programmers who appreciate modern language features and strong community support
  • Projects requiring seamless C integration
  • Individuals looking for a language that supports easy code maintenance and scalability

Analysis of SQLified

Overall verdict

  • I don't have verified, up-to-date information about SQLified (getsqlified.com) to make a reliable assessment of its quality. I'd recommend researching current reviews, testing any free trial, and checking user feedback before making a decision.

Why this product is good

  • I don't have specific, verified data on this product's features, pricing, or performance
  • Product offerings and quality can change over time, so real-time research is more reliable
  • Making claims without factual basis could be misleading

Recommended for

  • Anyone interested should check the official website directly for current features and pricing
  • Look for recent user reviews on independent platforms like G2, Capterra, or Reddit
  • Consider trying any free trial or demo version to evaluate firsthand
  • Ask in relevant developer or data community forums for peer experiences

D (Programming Language) videos

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D Language Tutorial

SQLified videos

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Category Popularity

0-100% (relative to D (Programming Language) and SQLified)

D (Programming Language)

SQLified

Programming Language
100 100%
Programming Language
0% 0
Developer Tools
0 0%
Developer Tools
100% 100
OOP
100 100%
OOP
0% 0
Databases
0 0%
Databases
100% 100

Questions & Answers

As answered by people managing D (Programming Language) and SQLified.

What makes your product unique?

SQLified's answer:

Our ability to infer data types, and produce massive insert statements quickly across multiple dialects.

What's the story behind your product?

SQLified's answer:

After using many online tools and being disappointed, I realized there was a need for a file that can create clean, type aware sql for bulk inserts. The product saves me tons of time every month dealing with large data sets in the payment industry and has reduced frustrations in dealing with them.

Who are some of the biggest customers of your product?

SQLified's answer:

There are numerous competitors, but none that do what SQLified does well: this is type inference, and creating runnable SQL script for extremely large inserts in multiple dialects.

How would you describe the primary audience of your product?

SQLified's answer:

SQLified is designed for the solo developer, or the analytical employee dealing with large data sets, csv, or delimited files every day, and struggling with bulk insert. I want to eliminate that struggle so the real work can be done.

Why should a person choose your product over its competitors?

SQLified's answer:

Our tools are simple, effective, and require little processing power. We store no data; all work is "ephemeral" and done on the users machine. We do not track, store, or maintain any datasets whatsoever in regards to whatever is converted on the site. We are also not trying to be something we are not. We do what we do, which is flat file to SQL dialect conversion, and we do it well.

User comments

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Social recommendations and mentions

Based on our record, D (Programming Language) seems to be more popular. It has been mentiond 60 times 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.

D (Programming Language) mentions (60)

  • Ask HN: What is your (AI) dev tech stack / workflow? (June 2026)
    I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge browser that gives context for AI. The answer was good enough for me and so I went with it further. [1] D language HQ : https://dlang.org/. - Source: Hacker News / 3 months ago
  • Rue: Higher level than Rust, lower level than Go
    > Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the ML-based languages such as OCaml[1]? 0 - https://dlang.org/ 1 - https://ocaml.org/. - Source: Hacker News / 9 months ago
  • Pony: An actor-model, capabilities-secure, high-performance programming language
    The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Show HN: D++lang – A new systems programming language with Python-like syntax
    What is this? There's a lot of red flags here. * The name "D" for a programming language was taken in 1999: https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Koto Programming Language
    >For me the biggest gap in programming languages is a rust like language with a garbage collector, instead of a borrow checker. I cannot agree more that's the much needed sweet spot/Goldilock/etc. Personally I have been advocating this approach for some times. Apparently the language is already widely available and currently has stable and wide compiler support including the venerable GNU compiler suite (GDC). It... - Source: Hacker News / over 1 year ago
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SQLified mentions (0)

We have not tracked any mentions of SQLified yet. Tracking of SQLified recommendations started around Jun 2026.

What are some alternatives?

When comparing D (Programming Language) and SQLified, you can also consider the following products

C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

SQLizer - Take data in a format you don't need, and turn it into SQL

Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Table Format Converter - Free online table converter tool. Convert CSV, HTML, JSON, Markdown, and other table formats instantly. No registration required, works offline, and keeps your data private.

V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.

OI ConvertCSV - Backup your notes and shopping lists on Android

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