Recent

Show all results for ""

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Resources

Search...

By @cassi_josh

[04/Sura/08]

Created by InestimableRhodolite

Download PDF Download

Start Quiz

Study Flashcards

9 Questions

What type of tables provide the current snapshot and 'end of all times'?

PIT tables

Which PostgreSQL feature should be avoided due to performance issues?

Window function

What type of queries require the use of effectivity satellites?

Data Vault queries

Data Vault queries require the use of effectivity satellites, hubs, and links. (True/False)

True

PIT tables only provide the current snapshot and not historical data. (True/False)

False

It is recommended to use PostgreSQL's window function for querying gsr_ledts due to its speed. (True/False)

False

Match the following database elements with their recommended usage:

Effectivity satellites = Data Vault queries PIT tables = Providing current snapshot and 'end of all times' gsr_type = 0 = Always query for this in PIT tables PostgreSQL's window function = Avoid using for querying gsr_ledts

Match the following recommendations with their associated statements:

Use of effectivity satellites, hubs, and links = Data Vault queries require Querying for gsr_type = 0 = Always recommended in PIT tables Avoidance of complex PostgreSQL features = Expect migration to Greenplum Prefer PIT over gsr_ledts for querying = Due to slow performance of PostgreSQL's window function

Match the following considerations with their corresponding database strategies:

Avoiding gsr_ledts = Prefer PIT over Migration to Greenplum = Expectation for avoiding complex PostgreSQL features Usage of effectivity satellites (hubs/links) = Requirement for Data Vault queries PIT tables providing current snapshot and 'end of all times' = Functionality related to

Learn about fundamental considerations for Data Vault queries, including the use of effectivity satellites, PIT tables, and avoiding complex PostgreSQL features. Understand the importance of querying PIT tables for specific gsr_type and best practices for optimizing query performance.

Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

More Quizzes Like This

180 questions