The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True

False

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Introduction to SQL
Find all the cities whose humidity is 89

SELECT city WHERE humidity = 89;

SELECT humidity = 89 FROM weather;

SELECT city FROM weather WHERE humidity = 89;

SELECT city FROM weather;

SELECT city WHERE humidity = 89;

SELECT humidity = 89 FROM weather;

SELECT city FROM weather WHERE humidity = 89;

SELECT city FROM weather;

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Introduction to SQL
SQL is a programming language.

False

True

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Introduction to SQL
Which of the following query finds colors of boats reserved by "Dustin"?

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND r.bid = b.bid

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid AND r.bid = b.bid;

SELECT DISTINCT b.color FROM boats b, sailors s WHERE s.sname = 'Dustin' AND s.sid = b.sid

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND r.bid = b.bid

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid AND r.bid = b.bid;

SELECT DISTINCT b.color FROM boats b, sailors s WHERE s.sname = 'Dustin' AND s.sid = b.sid

SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid

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Introduction to SQL
What is a view?

None of these

A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are.

A view is a database diagram.

A view is a special stored procedure executed when certain event occurs.

None of these

A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are.

A view is a database diagram.

A view is a special stored procedure executed when certain event occurs.

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Introduction to SQL
A subquery in an SQL SELECT statement:

has a distinct form that cannot be duplicated by a join.

cannot have its results sorted using ORDER BY.

can only be used with two tables.

can always be duplicated by a join.

has a distinct form that cannot be duplicated by a join.

cannot have its results sorted using ORDER BY.

can only be used with two tables.

can always be duplicated by a join.

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Introduction to SQL

Introduction to SQL The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

Introduction to SQL Find all the cities whose humidity is 89

Introduction to SQL SQL is a programming language.

Introduction to SQL Which of the following query finds colors of boats reserved by "Dustin"?

Introduction to SQL What is a view?

Introduction to SQL A subquery in an SQL SELECT statement:

Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

Introduction to SQL
Find all the cities whose humidity is 89

Introduction to SQL
SQL is a programming language.

Introduction to SQL
Which of the following query finds colors of boats reserved by "Dustin"?

Introduction to SQL
What is a view?

Introduction to SQL
A subquery in an SQL SELECT statement: