Table Name: CUSTOMERS_1 CUST_NUM CUST_LNAME CUST_FNAME CUST_BAL 2001 James Willi
ID: 3804372 • Letter: T
Question
Table Name: CUSTOMERS_1
CUST_NUM CUST_LNAME CUST_FNAME CUST_BAL
2001 James William $2,999
2002 Crane Frasier $983
Table Name: CUSTOMERS_2
CUST_NUM
CUST_LNAME CUST_FNAME CUST_BAL
1999 Anderson Anne $510
2000 Bryant Juan $21
2002 Crane Frasier $983
2003 Dent George $1,790
INSERT INTO CUSTOMERS_2 VALUES (2000, 'Bryant', 'Juan', 21);
Table Name: CUST_INVOICES
INV_NUM CUST_NUM INV_DATE INV_AMOUNT
9000 2000 23-Mar-16 245
9001 2001 23-Mar-16 260
9002 2001 30-Mar-16 275
9003 1000 10-Apr-16 286
From the table above, formulate an SQL query compatable with Microsoft Acces for the following:
Write a SQL code that will list INV_DATE, the number of invoices issued during each invoice date, and the average invoice amount for each date.
Explanation / Answer
Note : Invoice date and Invoice amount are present in a single table cust_invoices, no other tables are required for this requirement.
Select inv_date, Count(*) , avg(inv_amount) from Cust_Invoices
group by inv_date
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