In PostgreSQL, GEQO stands for Genetic Query Optimization. It allows the PostgreSQL search query optimizer to support large joined queries in an effective manner using a non-exhaustive search technique. Q9. What is the Maximum size for a database in PostgreSQL? Answer PostgreSQL has no maximum ...
SQL Server Profiler is a tool for monitoring and analyzing SQL Server events. It captures and records data about each event, such as query execution, performance metrics, and errors. It allows database administrators to diagnose performance issues, identify slow-running queries, and audit SQL Serve...
SQL query optimizations using LIMIT and OFFSET clauses can help you retrieve a portion of the records, allowing you to iterate through your data in manageable chunks instead of trying to load everything into memory all at once.19. How would you handle rapidly growing SQL tables?
Write a SQL query using UNION ALL (not UNION) that uses the WHERE clause to eliminate duplicates. Why might you want to do this? View answer You can avoid duplicates using UNION ALL and still run much faster than UNION DISTINCT (which is actually same as UNION) by running a query like...
5. What is the difference between MySQL and SQL? SQL is known as the standard query language. It is used to interact with the database like MySQL. MySQL is a database that stores various types of data and keeps it safe. A PHP script is required to store and retrieve the values inside...
This snippet demonstrates creating a temporary view from a DataFrame and using Spark SQL to perform a group-by query. Intermediate Spark Interview Questions For those who have mastered the basics and applied them in their professional roles, these questions might be more common: 6. Explain the ...
choice and encapsulates the code needed to manipulate the data. Therefore we don’t need to directly use the SQL; we can interact instantly with an object from our code, instead of a database table. The ORM tool translates the interaction into an SQL query and executes it in the database...
Therefore we don’t need to directly use the SQL; we can interact instantly with an object from our code, instead of a database table. The ORM tool translates the interaction into an SQL query and executes it in the database.ORMs provide additional features too, such as security, ...
Comprehensive, community-driven list of essential jQuery interview questions. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next jQuery interview ahead of time.
7 ecto 6054 1418 Elixir 5 A toolkit for data mapping and language integrated query. 2024-06-25T16:27:31Z 8 phoenix_live_view 5955 898 Elixir 26 Rich, real-time user experiences with server-rendered HTML 2024-06-25T20:21:39Z 9 papercups 5696 502 Elixir 155 Open-source live customer chat...