COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

Introduction to SQL
COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

True

False

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Introduction to SQL
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Data Definition Language(DDL)

Both of above

None

Data Manipulation Language(DML)

Data Definition Language(DDL)

Both of above

None

Data Manipulation Language(DML)

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Introduction to SQL
The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

True

False

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Introduction to SQL
Which of the following are the five built-in functions provided by SQL?

SUM, AVG, MIN, MAX, NAME

COUNT, SUM, AVG, MAX, MIN

SUM, AVG, MIN, MAX, MULT

SUM, AVG, MULT, DIV, MIN

SUM, AVG, MIN, MAX, NAME

COUNT, SUM, AVG, MAX, MIN

SUM, AVG, MIN, MAX, MULT

SUM, AVG, MULT, DIV, MIN

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Introduction to SQL
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

False

True

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Introduction to SQL
Find the name of all cities with their temperature, humidity and countries.

SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city;

SELECT city, temperature, humidity, country FROM location;

SELECT weather.city, temperature, humidity, country FROM weather, location;

SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city;

SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city;

SELECT city, temperature, humidity, country FROM location;

SELECT weather.city, temperature, humidity, country FROM weather, location;

SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city;

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Introduction to SQL

Introduction to SQL COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

Introduction to SQL Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Introduction to SQL The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

Introduction to SQL Which of the following are the five built-in functions provided by SQL?

Introduction to SQL The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

Introduction to SQL Find the name of all cities with their temperature, humidity and countries.

Introduction to SQL
COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

Introduction to SQL
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?

Introduction to SQL
The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

Introduction to SQL
Which of the following are the five built-in functions provided by SQL?

Introduction to SQL
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

Introduction to SQL
Find the name of all cities with their temperature, humidity and countries.