What alternatives to the Outbox Pattern exist?
Senior
191
Java
14499
265
What is DLT?
Senior
191
Что такое дженерики и для чего они используются?
Middle
191
When you perform a regular SELECT, how many queries does the driver send to Postgres? What are these queries and what will be there?
Senior
191
[name] asked: If the topic has 100 partitions and the @KafkaListener annotation specifies concurrency=10, will 90 partitions be idle?
Senior
191
Why is the finalize() method needed?
Senior
191
Can you explain what ExecutorService is and how it is used to manage threads?
Junior — Middle
191
What is a Saga and why is it needed?
Senior
191
What is important in a new workplace — project, tasks, stack, team?
Middle+
191
What indexes have you had to use (including covering indexes)?
Senior
191
- list the names, with the first column showing the name, - the second column showing the number of visitors with that name, - the third column showing the number of visitors with that name and older than 27 years - sort by name in ascending order (A-Z) SQL code example: ```sql create table customers ( id int, name text, age int ); insert into customers values (1, 'John', 20), (2, 'John', 20), (3, 'John', null), (4, 'John', 37), (5, 'Jane', null), (6, 'Bob', 13), (7, 'Bob', 99); SELECT name, COUNT(*) AS total, COUNT(CASE WHEN age > 27 THEN 1 END) AS older_27 FROM customers GROUP BY name ORDER BY name ASC; ```
Senior
191
Tell about your current project at [company] — what are you doing?
Senior
191
What is effectively final in Java and where is it used?
Senior
191
How does the mediator pattern differ from proxy?
Senior
191
What is the reason for the inadmissibility of inheritance from the built-in string type in a programming language?
Junior — Middle
191
Tell about a situation in the last year or two when you were most effective as a developer.
Senior
191
Provide an example when it is not necessary to use microservice architecture, and name a couple of reasons.
Senior
191
In what order should catch blocks be arranged (for example, FileNotFoundException and IOException)?
Senior
191
Write the simplest method that would throw a StackOverflowError during execution.
Senior
191
How to ensure that a Scheduled Job runs only on one instance out of 20 in a cluster?
Middle+
191