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Question: Write a SELECT statement that returns three columns: EmailAddress, OrderID, and the order total for each customer. To do this, you can group the result set by the EmailAddress and OrderID columns.
In adding, you must evaluate the order total from the columns in the OrderItems table.
Write a second SELECT statement that uses the first SELECT statement in its FROM clause. The main query should return two columns: the customer's email address and the largest order for that customer. To do this, you can group the result set by the EmailAddress column.
Prepare the write a select statement the returns three given columns.
I have the answer already but i do not understand it; I need expert to guide through it step by step. thanks!
1. a table scan is reading every record from the table in a sequential order to find the data that a query is looking
Describe the meaning of the keyword EXISTS. Describe how any and all relate to EXISTS and NOT EXISTS. Write a query which will display names of any customers who are interested in all artists.
Prior to the adoption of SQL as a standard by the American National Standards Institute (ANSI), each database management system (DBMS) had its own unique command language and syntax. SQL was adopted as an ANSI standard in 1986. The International S..
Please note that for "Table Employees" due to length of the table description and page size limit, I have broken it into 2 parts for better visibility, please make sure to use all the given attributes from the table.
If the value for the ListPrice column is a negative number, the stored procedure should raise an error that indicates that this column doesn't accept negative numbers. Similarly, the procedure should raise an error if the value for the DiscountPer..
part 1you are to write a 6 - 7page paper in the apa format about a topic related to this course turn in the final copy
Write PL/SQL block which displays last name and salary of following people. Each of these can be done separately as PL/SQL, first to test and get output lines.
attempt the following1. run the lab0301.sql script in the attached file to create the salhistory table. 2. display the
Write SELECT statement which returns those rows with the balance due greater than 1000. Sort result set by InvoiceTotal, with largest invoice first.
Write PL/SQL block which displays last name and salary of following people. Each of these can be done separately as PL/SQL, first to test and get output lines
Write a script that creates and calls a function named fnItemTotal that calculates the total amount of an item in the OrderItems table (discount price multiplied by quantity)
How to select the primary key from the candidate keys? How do foreign keys relate to candidate keys? provide examples from either your workplace or class assignments
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