Mahmoud

Java developer/scala spark

[Mahmoud @JavaDataPro]

I’m a Java backend developer working with Spring Boot and microservices. If you’re building something and need help with backend logic, APIs, or data persistence, feel free to DM

[Mahmoud @JavaDataPro]

@Janpanah2004 الهی آمین

[Mahmoud @JavaDataPro]

@Pishibiamanoyam انشالله خوب میشن ، خدا بزرگه ، توکل کنید به خدا

[Mahmoud @JavaDataPro]

@Janpanah2004 انشالله خوب میشه ، توکل کنید به خدا حتما خوب میشه
خدا حیلی بزرگه

[Mahmoud @JavaDataPro]

@Zahra_Izadinia به نظر ،با اکثریت بالا ،اینطور به نظر میرسه

[Mahmoud @JavaDataPro]

@SumitM_X Offset-based pagination for large data not good so
I used Instead of page numbers, use a cursor (last seen value).
after that I used index to db

[Mahmoud @JavaDataPro]

@SumitM_X only use count(*) because optimize ans standard approch so
count(*) not count rows

[Mahmoud @JavaDataPro]

@SumitM_X it won’t compile

[Mahmoud @JavaDataPro]

@MMMahmoodian فکر نکن ، بهتر میشی

[Mahmoud @JavaDataPro]

@RealBenjizo I think , Count(*) is an aggregate function so return 10
I chose A

[Mahmoud @JavaDataPro]

@SumitM_X We can split the table into customers and customer_payload tables and create a relationship between them

[Mahmoud @JavaDataPro]

@RealBenjizo The behavior of COALESCE is to return the first non-NULL value, so the result is zero

[Mahmoud @JavaDataPro]

@MMMahmoodian مهندس ،سعی کنید کلا کمتر مصرف کنید

[Mahmoud @JavaDataPro]

Happy New Year to all people around the world.

[Mahmoud @JavaDataPro]

@CyberRacheal I chose C , Purging means fully erasing data so nothing from the original remains. Normal delete or overwrite may not be enough.

[Mahmoud @JavaDataPro]

I’m a Java backend developer working with Spring Boot and microservices. If you’re building something and need help with backend logic, APIs, or data persistence, feel free to DM

[Mahmoud @JavaDataPro]

@OyinWebX Nice to meet you too

[Mahmoud @JavaDataPro]

I’m a Java backend developer working with Spring Boot and microservices. If you’re building something and need help with backend logic, APIs, or data persistence, feel free to DM

[Mahmoud @JavaDataPro]

@alirezashirazi یادش بخیر

[Mahmoud @JavaDataPro]

@RealBenjizo I think I chose A, because this condition returns all data except rows with NULL values.

[Mahmoud @JavaDataPro]

@SumitM_X It is one of the SOLID principles, and it refers to the Liskov Substitution Principle (LSP)