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Tech forum for Java, algorithms & data-structures, Hibernate, RESTful API, Spring framework, Microservices architecture, Interview questions, Python, SDET, Machine learning, DevOps.
What is difference between Primary key and Unique Key
Carvia Tech | May 20, 2019 at 10:03 PM | 12 views
The main purpose of a Primary key is to uniquely identifies a given record in a Table, while the Unique Key constraint is meant to prevent duplicate values in a column (with exception of null value)
Read ArticleTop 50 Multi-threading Java Interview Questions for Investment Banking Domain
Carvia Tech | May 20, 2019 at 03:30 PM | 690 views
Top 50 Java Multi-threading/Concurrency Interview Questions for Investment Banking & HealthCare, BFSI, healthcare, Core Java, hibernate, spring, algorithms for senior developer
Read ArticleCreating custom Keras callbacks in python
Carvia Tech | May 20, 2019 at 03:25 PM | 25 views
In this article we will create custom keras callbacks using python i.e. logging batch results to stdout, stream batch results to CSV file, terminate training on NaN loss.
Read ArticleDeploying Keras Model in Production using Flask
Carvia Tech | May 20, 2019 at 01:50 PM | 6 views
In this article, We are going to discuss the process of building a REST Api over keras's saved model. We are going to take example of a mood detection model which is built using NLTK, keras in python.
Read ArticleWhat is new in Spring Boot 2
Carvia Tech | May 20, 2019 at 09:21 AM | 4 views | Spring Boot 2
Spring boot 2 brings major changes, including Java 8 baseline, Spring 5, reactive web programming, Kotlin support, embedded netty, simplified security configuration.
Read ArticlePrevent Lost Updates in Database Transaction using Spring Hibernate
Carvia Tech | May 20, 2019 at 09:14 AM | 395 views
When a user is updating a row in database, other users must be notified/blocked from updating the stale data. Hibernate can use 2 strategies to handle such concurrent updates - Optimistic Locking & Pessimistic Locking. Even if you are using spring, hibernate will take care of the concurrency management.
Read ArticleRunning Spring Boot app as a service in unix
Carvia Tech | May 20, 2019 at 02:26 AM | 12 views
We can always run Spring Boot applications by using `java -jar
Introduction to Sorting Algorithms
Carvia Tech | May 19, 2019 at 05:07 PM | 2 views
Introduction to various sorting algorithms and discussion on quick sort, merge sort and external merge sort.
Read ArticleCount the number of open lockers in school
Carvia Tech | May 19, 2019 at 05:02 PM | 3 views | Python Coding Problem
A group of schools has a specific number of lockers and a specific number of students. All lockers are closed on the first day of school.
Read ArticleTop 100 interview questions on Data Science & Machine Learning
Carvia Tech | May 19, 2019 at 04:55 PM | 32 views
Top 100 interview questions for data science and machine learning most relevant for freshers and experienced candidates. Questions comprises of coding and theory part
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