Selecting Display Fields and Specifying the Data Source
Explore how to accurately select specific fields and define data sources using the SQL SELECT statement. Understand how to retrieve all columns or select individual ones, arrange their order in results, and apply query structure best practices to generate precise database reports.
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Selecting specific display fields
Let’s assume that the following dataset is stored in a relational database table named SalesData.
We want to generate the following report:
Let’s start with finding the answer to the first question:
(Select all that apply.) Which of the following fields should be included in the result set? Multi-select
SaleID
SalesPerson
ProductCategory
SaleDate
ProductName
SalesAmount
When creating an SQL query, the goal is to precisely select the necessary information. Often, it’s as straightforward as shown in this exercise. Yet, occasionally, it can also be quite challenging!
Let’s answer the following question:
Below is a list of fields. Which SQL keyword is used to retrieve the required fields in the result set?
FROM
SELECT
WHERE
Now let’s answer the second question:
(Select all that apply.) Which of the following represents a data source? Multi-select
SaleID
SaleDate
SalesData
FROM