SQL "List the item ID, description, and on-hand value (units on hand * unit price) of each item in category CAT. (On-hand value is technically units on hand * cost, but there is no COST column in the ITEM table). Assign the name ON_HAND_VALUE to the computed column. The query is calculating the total on-hand value of items by category. The query will need to use the SUM function to add the total on-hand value of items in each category." I tried SELECT ITEM_ID, DESCRIPTION, ON_HAND * PRICE AS ON_HAND_VALUE FROM ITEM WHERE CATEGORY = 'CAT'; The query was completed, however it didn't display the right results. What am I doing wrong?
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
SQL
"List the item ID, description, and on-hand value (units on hand * unit price) of each item in category CAT. (On-hand value is technically units on hand * cost, but there is no COST column in the ITEM table). Assign the name ON_HAND_VALUE to the computed column.
The query is calculating the total on-hand value of items by category. The query will need to use the SUM function to add the total on-hand value of items in each category."
I tried
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
