1.2.4

Interrogating Data

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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

Questions for a database

  • A question for a database is called a query.
Queries

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

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!

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.
Jump to other topics
1

Using Computers

1.1

Computers as a Tool

1.1.1Uses of Computers1.1.2More Uses of Computers1.1.3Advantages of Information Technology1.1.4More Advantages of Information Technology
1.2

Data

1.2.1Storing Data1.2.2Databases1.2.3Sorting & Filtering Data1.2.4Interrogating Data
1.3

Plagiarism & Illegal Sharing

1.3.1Plagiarism1.3.2Copyrighted Content
2

Networks & the World Wide Web

2.1

Networks

2.1.1Parts of Networks2.1.2The Internet2.1.3The World Wide Web
2.2

Searching Online

2.2.1Searching the World Wide Web2.2.2Searching Tips2.2.3Reliable Information
2.3

Protecting Yourself Online

2.3.1Your Digital Footprint2.3.2Being Safe2.3.3Online Safety2.3.4Viruses2.3.5Malware2.3.6People Online2.3.7Your Feelings2.3.8Getting Help
3

Computational Thinking

3.1

Computational Thinking

3.1.1Computational Thinking3.1.2Decomposing Tasks3.1.3Algorithms (1/2)3.1.4Algorithms (2/2)3.1.5Logical Reasoning & Debugging
4

Computer Languages

4.1

Coding

4.1.1Code4.1.2Programs4.1.3Writing Programs4.1.4Writing Your Own Program: Input, Outputs, Design4.1.5Turning an Algorithm into an App (1/2)4.1.6Turning an Algorithm into an App (2/2)

Practice questions on Interrogating Data

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    What word means asking questions to find something out?Multiple choice
  2. 2
    What is a way of interrogating the World Wide Web, which is a large database?Multiple choice
  3. 3
    What is a query?Multiple choice
  4. 4
    Why should you be careful with the results of a database query? Multiple choice
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Sorting & Filtering Data

Plagiarism