23 Questions
What is the term for a set of schemas that describe a database?
Catalog
What is the primary purpose of Transaction Control Language (TCL)?
To control the flow of DML statements
What is the purpose of the Create Table command in SQL?
To define attributes and constraints of a table
What is the term for the structure that contains descriptions of objects created by a user?
Schema
What are the two approaches to creating a table in a database?
Through SQL and Through Enterprise Manager
What is the first step in query processing in SQL?
Parsing and translation
What is a benefit of using a domain in SQL?
It makes it easier to change the data type for a domain that is used by numerous attributes in a schema
What is the minimum number of positions required for decimal fractions of seconds in the TIMESTAMP data type?
6
What is the purpose of the INTERVAL data type in SQL?
To specify a relative value that can be used to increment or decrement an absolute value
What is the syntax to create a domain in SQL?
CREATE DOMAIN DOMAIN_NAME AS DATA_TYPE;
What is the primary function of SQL in relational databases?
To manage and manipulate data in relational databases
What is the WITH TIME ZONE qualifier used for in the TIMESTAMP data type?
To specify the time zone
What is the ANSI SQL standard update year that is also a millennium year?
1986
Which of the following is NOT a type of SQL language?
SQLL
What is the purpose of the GRANT command in SQL?
To grant access privileges to a user or role
Who is credited with developing the relational database concept?
E.Codd
What is the acronym for Structured Query Language?
SQL
What is the purpose of the CHECK constraint in the given CREATE TABLE example?
To restrict the values of the Sex column to 'm' or 'f'
What is the purpose of identifying columns that can and cannot be null in the steps of table creation?
To define the constraints on the column
What is the data type of the Salary column in the given CREATE TABLE example?
DECIMAL(10,2)
What is the purpose of the FOREIGN KEY constraint in the given CREATE TABLE example?
To define the relationships between tables
What is the purpose of the DEFAULT value in the CREATE TABLE statement?
To specify a default value for a column when no value is provided
What is the purpose of identifying the primary key in the steps of table creation?
To uniquely identify each row in the table
Test your understanding of SQL data definition and relational databases, including creating tables, specifying constraints, and understanding the SQL language. This quiz covers key concepts from IS-222, sections 3, 6, and 7, and is ideal for students looking to reinforce their learning. Evaluate your knowledge of SQL statements, relational database schemas, and more.
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