Crowdly
Додати до Chrome
Questions Bank (1490449 total)
Гетерозис проявляється повною мірою лише у гібридів
0%
100%
0%
0%
Переглянути це питання
A stored procedure in the database is a set of stored and compiled SQL statements that can then be called by applications or other stored procedures.
0%
0%
Переглянути це питання
Higher isolation levels can reduce concurrency by locking more data, potentially leading to deadlocks in highly concurrent environments
100%
0%
Переглянути це питання
FetchType.LAZY retrieves related entities from the database only when explicitly accessed.
100%
0%
Переглянути це питання
Condition-based validation can prevent stock levels from going below zero during concurrent purchases in an e-commerce application.
100%
0%
Переглянути це питання
SQL queries are case-sensitive.
0%
100%
Переглянути це питання
In distributed databases, data is stored on multiple nodes, each managed independently by a DBMS, fostering cooperation between autonomous stations
100%
0%
Переглянути це питання
A composite key is not made up of more than one attribute to uniquely identify rows in a table
0%
0%
Переглянути це питання
Dynamic allocation does not allocate buffer memory solely based on the size of processed data.
100%
0%
Переглянути це питання
Read committed isolation level prevents dirty reads.
100%
0%
Переглянути це питання