Interrogating Data
Computing: Year 5 & 6 National Curriculum, topic 1.2.4
Interrogating Data
Interrogating means asking questions to find something out. In information technology, interrogating means to get information from a database.
Questions for a database
- A question for a database is called a query.
Queries
- A query must be made in the right way for the database to respond.
- An example of a query is to find all the boys who scored more than 80% in a test in a database.
Interrogation of results
- Using a search engine is a way of interrogating a large database.
- One example of a search engine is Google.
- One example of a large database is the World Wide Web.
Be careful!
- You need to be careful when using the results of our interrogation (query).
- The results of a query can be wrong or misleading.
- The results of a query are only as good as the data in the database.
Test yourself on Interrogating Data
What word means asking questions to find something out?
What is a way of interrogating the World Wide Web, which is a large database?
What is a query?
Why should you be careful with the results of a database query?