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1. Write queries using the SQL GROUP statement to produce the requested reports as described below. In general, to make grouping meaningful, a function such as COUNT or SUM is used. In the below tasks, COUNT(*) is the desired function to include in your SELECT statement along with the requested fields.
2. Display total number of employees for each job title. Columns should include Job_Title and 'Total Employees'. (Hint: use the "AS clause" to rename a column in the result set.)
3. Display total number of employees for each salary. Columns should include Salary and 'Total Employees'.
4. Display total number of employees for each salary within each job title. Columns should include Job Title, Salary, and 'Total Employees'.
5. Display total number of employees for each salary grouped by exempt status. Columns should include Exempt, Salary, and 'Total Employees'.
Explain the content of this document in natural language;Design the graph representation of document;
Do you think that most companies would need this type of implementation? Why?
What is System R? What are its two major subsystems? How is the data structure of System R different from the relational structure? What is Data Independence?
One of the components of a DBMS is the Query Processor. What is the purpose of the Query Processor? Explain what is meant by the file-based approach to data storage and discuss its limitations?
Perform the following operations using SQL. Create a Database ('fdb') using any one from Oracle, Sybase, DB-2, SQL Server or MySQL. Write SQL query to select students having GPA greater than 3 and the result should be sorted according to name
Draw the General Hardware Company Entity-Relational diagram. Choose a primary key for each of the relations. Choose foreign key(s) for each of the relations.
Taking into account the availability of today's powerful computers, why is programming efficiency important
The office uses three dental laboratories that provide supplies and services, such as fabricating dentures. Draw a complete E-R Diagram for the implementation.
Develop an E-R diagram, class diagram, or a data flow diagram that effectively represents the data that are required for your application or system.
Analyse and comprehend a provided ER diagram and Database Schema and mplement a database based on the provided ER diagram and Database Schema
Develop an E-R diagram for the library database. The relation schemas for the library database.
writing a program to manage a student database
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