What is a view? | EXAMIANS

Introduction to SQL
What is a view?

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

None of these

A view is a database diagram.

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 special stored procedure executed when certain event occurs.

None of these

A view is a database diagram.

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.

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Introduction to SQL
Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints

9

5

0

10

9

5

0

10

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Introduction to SQL
Which of the following is the original purpose of SQL?

To specify the syntax and semantics of SQL manipulation language

To define the data structures

To specify the syntax and semantics of SQL data definition language

All of these

To specify the syntax and semantics of SQL manipulation language

To define the data structures

To specify the syntax and semantics of SQL data definition language

All of these

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Introduction to SQL
Find the temperature in increasing order of all cities

SELECT city, temperature FROM weather;

SELECT city FROM weather ORDER BY temperature;

SELECT city, temperature FROM weather ORDER BY city;

SELECT city, temperature FROM weather ORDER BY temperature;

SELECT city, temperature FROM weather;

SELECT city FROM weather ORDER BY temperature;

SELECT city, temperature FROM weather ORDER BY city;

SELECT city, temperature FROM weather ORDER BY temperature;

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Introduction to SQL
The result of a SQL SELECT statement is a ________ .

report

form

table

file

report

form

table

file

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Introduction to SQL
Let the statementSELECT column1 FROM myTable;return 10 rows. The statementSELECT ALL column1 FROM myTable;will return

more than 10 rows

less than 10 rows

exactly 10 rows

None of these

more than 10 rows

less than 10 rows

exactly 10 rows

None of these

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Introduction to SQL

Introduction to SQL What is a view?

Introduction to SQL Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints

Introduction to SQL Which of the following is the original purpose of SQL?

Introduction to SQL Find the temperature in increasing order of all cities

Introduction to SQL The result of a SQL SELECT statement is a ________ .

Introduction to SQL Let the statementSELECT column1 FROM myTable;return 10 rows. The statementSELECT ALL column1 FROM myTable;will return

Introduction to SQL
What is a view?

Introduction to SQL
Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints

Introduction to SQL
Which of the following is the original purpose of SQL?

Introduction to SQL
Find the temperature in increasing order of all cities

Introduction to SQL
The result of a SQL SELECT statement is a ________ .

Introduction to SQL
Let the statementSELECT column1 FROM myTable;return 10 rows. The statementSELECT ALL column1 FROM myTable;will return