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Using the programming language pascal, write a program to implement an algorithm that accepts the names of 25 members and their total sales . The algorithm must also calculate commission at 3% of total sales. It should display name, total sales, and commission of the member with highest commission and number of persons without commission.
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?
Suppose a sequential file contains 50,000 records, and 5 milliseconds are required to interrogate an entry. How long should we expect to wait when retrieving a record from the middle of the file?
relational algebragiven the following set of relations from the east coast aquarium database list the sequence of
assignment 6.2suppose your database system has failed. describe the database recovery process and the use of
1. which is not a factor to consider in software evaluation?a. performance effectivenessb. performance efficiencyc.
Describe some possible interpretations of the data related to the patient fall rate on the telemetry unit and Discuss the quality management process you would follow to improve patient fall rates on the unit.
Write a script to establish a foreign key constraint between EMPLOYEES and DEPARTMENTS using the common field: DepartmentID. Create a database diagram of the final database clearly depicting all tables and relationships.
How do you 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.
Develop a PowerPoint slide presentation for your Database Life Cycle Project
1. what a query execution plan?2. discuss the reasons for converting sql queries into relational algebra queries before
Create a 2-3 page (350 words per page) examining the use of databases in organization. Explain what database applications are utilized (Microsoft Access, DB2, Oracle, etc.).
Recommend at least three (3) specific tasks that could be performed to improve the quality of datasets, using the Software Development Life Cycle (SDLC) methodology. Include a thorough description of each activity per each phase.
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