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WorksheetsIntroduction to SQL (Grade 12)
Total questions: 15
Worksheet time: 8mins
A collection of information that is organized so that it can be easily accessed, managed and updated is called
file.
array.
database.
function.
The relational model has relationship between tables using primary keys, foreign keys and indexes.
True
False
How many types of SQL commands are there?
Two
Three
Four
Five
A type of SQL language used to define the structure that holds the data is
DDL
DML
DCL
A type of SQL language used to control the visibility of data is
DDL
DML
DCL
A type of SQL language used for manipulation of data itself is called
DDL
DML
DCL
Create, Alter and Drop are the examples of
DDL
DML
DCL
Grant and Revoke are examples of
DDL
DML
DCL
Select and Insert are examples of
DDL
DML
DCL
Update and Delete are examples of
DDL
DML
DCL
A classic query engine handles all the non-SQL queries
True
False
A SQL query engine can handle logical files
True
False
A Relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model.
True
False
The fetching and storing of data become slower by using relationships between tables.
True
False
The columns in a database table are called as records.
True
False
