Database Concepts using LibreOffice Base is an important chapter in the Class 12 Information Technology syllabus. This chapter helps students understand how databases are created, managed, and used for storing large amounts of data efficiently.
Database Concepts Using Libreoffice Base Class 12 Exercise Solutions
Q.1 Fill in the blanks.
1. __ is a collection of related data.
Show Answer ⟶2. Queries are used to __ information from database.
3. The representation of data in printed form is called as _.
Show Answer ⟶Q.2 State True/False.
1. Form is used to collect the data from the user.
2. Menu bar is present below Title bar.
Show Answer ⟶3. Columns are called as records.
Q.3 Multiple Choice Question. (1 Correct Answer)
1. Rows in Base are called as ……………….
a) records
b) fields
c) table
d) database
2. File extension of Base is ………..
a) .odt
b) .ods
c) .odb
d) .odp
Q.4 Answer in brief.
1. Define database.
Answer: A database is a collection of related data items stored in an organised manner. A database consists of different objects like tables, queries, forms and reports.
2. What is a query?
Answer: A A query is a question asked within the database environment. For example, how many students are in XII standard? A query displays a subset of data contained in various tables of the database. A query is used to retrieve records from the table.
3. Define report.
Answer: The presentation of information in an organised and readable format as per the user’s requirement is known as a report. Various complex reports can be generated that can help in taking decisions by the management. A report is the representation of data in printed form.
4. Explain the working area of Base.
Answer: The working area of Base is the main screen where different database objects like tables, queries, forms and reports are created and managed. It typically includes:
- Database pane: lists all objects like tables, queries, forms and reports.
- Tasks pane: Shows options to create or open objects.
- Workspace area: Where the selected object is displayed or edited.
Q.5 Match the following.
| A | B |
|---|---|
| Query | a) Collect information from user. |
| Report | b) Collection of related data. |
| Form | c) Retrieve data from database. |
| Table | d) printed form of data. |
Answer:
| A | B |
|---|---|
| Query | c) Retrieve data from database. |
| Report | d) printed form of data. |
| Form | a) Collect information from user. |
| Table | b) Collection of related data. |
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