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Intermediate SQL
course content

Course Content

Intermediate SQL

Intermediate SQL

1. Grouping
GROUP BYOrder of StatementsTotal Ride Time for Each Subway Line ChallengeAverage Student's Grade ChallengeSearching for the Top Math Students ChallengeHAVINGSeveral Aggregate Functions in the QueryMore Complex Filtering
2. Nested Subqueries
Nested QueriesNon-tech Department Employees ChallengeUsing Inner Subqueries in the FROM SectionEmployees With More Than Average Salary ChallengeUNION ClauseCombining Table Results
3. Joining Tables
JOIN 2 TablesGet Category By Product PriceGet Minimum Price By CategoryGet Product Amount By CategoryLEFT, RIGHT and INNER JOINsTable Join PracticeFULL JOIN Usage
4. DDL and DML in SQL
CREATE and ConstraintsALTER and INSERT OperationsDROP and TRUNCATEUPDATE and DELETE

bookGet Product Amount By Category

Great job!

Now the company has a new task for us.

A new supplier contacted us and said that they can supply goods from the categories Meat or Grains cheaply. We need to find out which products in these categories have less than 100 units left in stock.

Just a reminder, we are working with two tables:

product:

category:

Task

Your task is to retrieve the product names and their quantities in stock. To do this, you'll need to join two tables. The category of these products should be Meat or Grains. Keep in mind that you'll need to use the OR operator for this. Also, the quantity of the product should be less than 100. To do this, you'll need to use the AND operator.

Also, you need to sort the result by the name column using the ORDER BY clause.

Note

Keep in mind that you should wrap the string with the OR operation in parentheses and then use the AND operator. Here, the standard order of operations from discrete mathematics applies.

As a result, you should have 2 columns: product_name and amount, so don't forget to set appropriate aliases!

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Section 3. Chapter 4
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bookGet Product Amount By Category

Great job!

Now the company has a new task for us.

A new supplier contacted us and said that they can supply goods from the categories Meat or Grains cheaply. We need to find out which products in these categories have less than 100 units left in stock.

Just a reminder, we are working with two tables:

product:

category:

Task

Your task is to retrieve the product names and their quantities in stock. To do this, you'll need to join two tables. The category of these products should be Meat or Grains. Keep in mind that you'll need to use the OR operator for this. Also, the quantity of the product should be less than 100. To do this, you'll need to use the AND operator.

Also, you need to sort the result by the name column using the ORDER BY clause.

Note

Keep in mind that you should wrap the string with the OR operation in parentheses and then use the AND operator. Here, the standard order of operations from discrete mathematics applies.

As a result, you should have 2 columns: product_name and amount, so don't forget to set appropriate aliases!

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 4
toggle bottom row

bookGet Product Amount By Category

Great job!

Now the company has a new task for us.

A new supplier contacted us and said that they can supply goods from the categories Meat or Grains cheaply. We need to find out which products in these categories have less than 100 units left in stock.

Just a reminder, we are working with two tables:

product:

category:

Task

Your task is to retrieve the product names and their quantities in stock. To do this, you'll need to join two tables. The category of these products should be Meat or Grains. Keep in mind that you'll need to use the OR operator for this. Also, the quantity of the product should be less than 100. To do this, you'll need to use the AND operator.

Also, you need to sort the result by the name column using the ORDER BY clause.

Note

Keep in mind that you should wrap the string with the OR operation in parentheses and then use the AND operator. Here, the standard order of operations from discrete mathematics applies.

As a result, you should have 2 columns: product_name and amount, so don't forget to set appropriate aliases!

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Great job!

Now the company has a new task for us.

A new supplier contacted us and said that they can supply goods from the categories Meat or Grains cheaply. We need to find out which products in these categories have less than 100 units left in stock.

Just a reminder, we are working with two tables:

product:

category:

Task

Your task is to retrieve the product names and their quantities in stock. To do this, you'll need to join two tables. The category of these products should be Meat or Grains. Keep in mind that you'll need to use the OR operator for this. Also, the quantity of the product should be less than 100. To do this, you'll need to use the AND operator.

Also, you need to sort the result by the name column using the ORDER BY clause.

Note

Keep in mind that you should wrap the string with the OR operation in parentheses and then use the AND operator. Here, the standard order of operations from discrete mathematics applies.

As a result, you should have 2 columns: product_name and amount, so don't forget to set appropriate aliases!

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 4
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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