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Unit 23

Database and Spreadsheets. Unit 23. Prepared by : Nahed Al- Salah. Intoduction. A database is needed to store information so that it can be searched and sorted in various ways. Each item of information stored in a field. A collection of related fields form a record.

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Unit 23

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  1. Database and Spreadsheets Unit 23 Prepared by :Nahed Al-Salah

  2. Intoduction • A database is needed to store information so that it can be searched and sorted in various ways. • Each item of information stored in a field. • A collection of related fields form a record. • Simple searches can often be created by allowing the user to type the required field information into a blank record and pressing a search button.

  3. More advanced programs usually use a query language known as SQL ( structural Query Language. • This allows users to type statements using logical operators to specify the search conditions.

  4. Spreadsheet • A Spreadsheet program is used for calculating formulae. • It made up of a grid or array of rectangular boxes called cells as shown below : • The columns are labelled A,B,C… • The rows of cells numbered 1,2,3… • To refer to a particular cell e.g A1 , B1,C1………

  5. Exercises • At Textbook

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