Reference no: EM133109026
MIS 4386 Database Management Systems - Bauer College of Business
The purpose of this opportunity is to give you a chance to write an SQL query which will subsequently be used in PL/SQL Opportunity No. 5. The query needs to make use of the following three tables.
SQL> desc doctor
Name Null? Type
----------------------------------------- -------- ----------------------------
DOC_ID NOT NULL NUMBER
DOC_NAME VARCHAR2(20)
AREA VARCHAR2(20)
SQL> desc patient
Name Null? Type
----------------------------------------- -------- ----------------------------
PT_ID NOT NULL NUMBER
PT_LNAME VARCHAR2(15)
PT_FNAME VARCHAR2(15)
DOC_ID NUMBER
SQL> desc billing
Name Null? Type
----------------------------------------- -------- ----------------------------
PT_ID NOT NULL NUMBER
BALANCE NUMBER
DUEDATE DATE
PT_INS VARCHAR2(25)
The content of the three tables can be created by executing the S22-doctorsdatabase.sql script file The content of the tables associated with this file appear on the next page.
The task for PL/SQL Opportunity No. 4 is to write a query that displays the sum of the charges for each of the doctors. Using the data on the next page, you should be able to determine if the result generated by your query is correct. If your knowledge of SQL allows you to write this query without a hint from me, then I will award you 12 points.
Before writing a query, I suggest that you begin by defining the problem and manually computing the sum of the charges for one of the doctors. Doctor ID 509 might be a good choice.
You are going to need to join the DOCTOR, PATIENT, and BILLING tables together and then group the results of the join by doctor in order to determine the total number of charges and the sum of the charges for each doctor.
Attachment:- PL SQL Opportunity.rar
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