Which is true about a data warehouse?

Which is true about a data warehouse?

A data warehouse is a relational database that is designed for query and analysis rather than for transaction processing. It usually contains historical data derived from transaction data, but it can include data from other sources.

What is considered a data warehouse?

A data warehouse is a central repository of information that can be analyzed to make more informed decisions. Data flows into a data warehouse from transactional systems, relational databases, and other sources, typically on a regular cadence.

What is Web data warehouse?

A Web-enabled data warehouse uses the Web for information delivery and collaboration among users. As months go by, more and more data warehouses are being connected to the Web. Essentially, this means an increase in the access to information in the data warehouse.

What a data warehouse is not?

1. It is not a database

Database Data Warehouse
How it’s used Databases are made to quickly record and retrieve information. Data warehouses store data from multiple databases, which makes it easier to analyze.

What is data warehouse Mcq?

A process to load the data in the data warehouse and to create the necessary indexes. A process to upgrade the quality of data after it is moved into a data warehouse. A process to upgrade the quality of data before it is moved into a data warehouse.

What is data warehouse used for?

A data warehouse is a type of data management system that is designed to enable and support business intelligence (BI) activities, especially analytics. Data warehouses are solely intended to perform queries and analysis and often contain large amounts of historical data.

How is data warehouse different from database?

The database is designed to capture data, and the data warehouse is designed to analyze data. The database is a transaction-oriented design, and the data warehouse is a subject-oriented design. The database generally stores business data, and the data warehouse generally stores historical data.

What is computer warehouse?

What is false about datawarehouse?

False. The Data warehouse is not generally updated in real-time.

Where is datawarehouse used?

Data warehouses are relational environments that are used for data analysis, particularly of historical data. Organizations use data warehouses to discover patterns and relationships in their data that develop over time.

Which one of the following is not a database?

Expert-verified answer Base is not a database and also NoSQL databases and it has data consistency models which can something be strikingly various from those used by relational databases . It has two common consistency model which are know as the acid as well based.

What does a data warehouse do?

How do data warehouses work?

The Data warehouse works by collecting and organizing data into a comprehensive database. Once the data is collected, it is sorted into various tables depending on the data type and layout.

Which of the following statement is true for data warehouse Mcq?

Q. Which of the following statements is not true about refreshing a data warehouse:
B. Updates to dimension tables may occur at different times than the fact table
C. The data warehouse administrator has more control over the load time lag than the valid time lag
D. None of the above
Answer» d. None of the above

What is a data warehouse Mcq?

A system that is used to run the business in real time and is based on historical data.