اشتراک‌ها
خودآزمایی SQL

The SQL Murder Mystery

There is a murder in SQL City! A very interactive self-thought SQL tutorial where you have to find a murder using SQL Queries 

خودآزمایی SQL
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کتابخانه CSharpFunctionalExtensions
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انتشار Unity 2018.1

The Visual Studio team is excited about the Unity 2018.1 release: It’s the start of a new release cycle packed with great new features like the Scriptable Render Pipeline and the C# Job System. You can read the full blog post by Unity for all the details on what’s new in the 2018.1 release. 

انتشار Unity 2018.1
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آیا مهندسان نرم افزار یک کالا هستند؟

WhatsApp had 450 million monthly users and just 32 engineers when it was acquired. Imgur scaled to over 40 billion monthly image views with just seven engineers. Instagram had 30 million users and just 13 engineers when it was acquired for $1 billion dollars.
This is the new normal: fewer engineers and dollars to ship code to more users than ever before. The potential impact of the lone software engineer is soaring. How long before we have a billion-dollar acquisition offer for a one-engineer startup? How long before the role of an engineer, artisanally crafting custom solutions, vanishes altogether?

آیا مهندسان نرم افزار یک کالا هستند؟
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نگاهی به پشت صحنه‌ی طراحی و عملکرد بانک‌های اطلاعاتی
Things I Wished More Developers Knew About Databases

- You are lucky if 99.999% of the time network is not a problem.
- ACID has many meanings.
- Each database has different consistency and isolation capabilities.
- Optimistic locking is an option when you can’t hold a lock.
- There are anomalies other than dirty reads and data loss.
- My database and I don’t always agree on ordering.
- Application-level sharding can live outside the application.
- AUTOINCREMENT’ing can be harmful.
- Stale data can be useful and lock-free.
- Clock skews happen between any clock sources.
- Latency has many meanings.
- Evaluate performance requirements per transaction.
- Nested transactions can be harmful.
- Transactions shouldn’t maintain application state.
- Query planners can tell a lot about databases.
- Online migrations are complex but possible.
- Significant database growth introduces unpredictability.
نگاهی به پشت صحنه‌ی طراحی و عملکرد بانک‌های اطلاعاتی
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