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Using WITH clause write SELECT statement to list job_title of those jobs whose maximum salary is more than half maximum salary of whole company. Write down your subquery MAX_CALC_SAL. Name columns in result JOB_TITLE and JOB_TOTAL, and sort result on JOB_TOTAL in descending order. Analyze jobs table. You will require to join JOBS and EMPLOYEES to display job_title.
Write a command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order.
From information system point of view, we should take the key functions of organization and map them to strategic information. Do your companies follow this process or are steps skipped?
Can Oracle have multiple group functions in the same SELECT list of query (i.e can we do a COUNT and AVG)? Let us assume we wanted to find lowest, highest, average.
Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.
Indicate changes you require to make to design of Premiere Products database to support following situation: There is no relationship between customers and sales reps.
The DBA denormalized some of the data in Premiere Products database to enhance performance, and one of the resulting tables is following.
Compute the numbers of married men, single men, married women and single women. Print these numbers on a student summary report.
List the sequence of relational algebra operations needed to implement the queries.
MCIS 630 Database Systems: - Write a recursive SQL query that outputs the names of all subparts of the part with part-id “P- 100”.
In physical database design, referential integrity constraints can be defined. What actions does referential integrity constraint prevent from happening when data is inserted in table which contains this constraint?
Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.
Explain the information-gathering techniques and design methods you would suggest to use for project. Recognize the key factors that help ensure the information required for the project.
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