Did [name] encounter problems when reducing the load on the system?
Senior
201
Golang
8397
379
How do transactions work in PostgreSQL and MySQL?
Middle+
198
How many rows were in the database?
Senior
197
How does append work? What happens if you pass a slice to a function and modify it?
Middle+
195
What are the main differences between TCP and UDP, and when should each protocol be chosen?
Middle+
190
package main import "fmt" type Person struct { Name string } func changeName(person *Person) { person = &Person{ Name: "Alice", } } func main() { person := &Person{ Name: "Bob", } fmt.Println(person.Name) // changeName(person) fmt.Println(person.Name) // }
Senior
188
How to view resource consumption of processes using Linux terminal? How to kill a process? What commands did you use overall?
Middle+
188
**Condition** Requests to multiple URLs should be executed in parallel. HTTP statuses should be displayed, and errors handled.
Senior
187
What is the difference between a hash index and a B-tree?
Middle+
187
What are the settings of the HTTP client in Go?
Senior
187
What is the difference between a slice and an array in Go?
Middle+
178
What is the difference between slice and array in Go, and how does append work?
Senior
176
How does map work under the hood in the new versions of Go, what has changed?
Middle
176
What is a nil pointer dereference?
Senior
171
What is ACID?
Middle+
170
Called EXPLAIN ANALYZE — where to look to understand why the query is running slowly?
Senior
169
How to find a slow query? Have you had experience optimizing such queries?
Middle+
168
// Description: // Implement the backend part of a scheduler application, which will have 3 methods: // 1) Create a command with an ID and a start time. // 2) Get a list of active commands. // 3) Cancel a command by ID. // The command should execute exactly at the time passed in the first method. // The methods will be called via an HTTP server, the number of concurrent requests // to these methods is not defined. // The execution of the command can be simulated by Print(ID) to stdout, to emulate execution.
Middle
167
How to find out why the handle responds slowly? How to use pprof?
Senior
161
How do goroutines work and how to synchronize their work?
Middle+
160