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Q1) There are many different types of individuals involved in the database development process.There are users, business analysts, system analysts,data modelers, data architects,database designers, database developers, database administrators. In 250 - 300 words describe the role of a database administrator and the tasks performed by this role. Also, explain why this role is important in Database Management. Use a minimum of two sources of information. Cite sources properly, using in-text citations and double quotes where appropriate, and a proper References list at the end of your written response. At least 75% of the writing must be in your own words.
You should choose a data storage problem of your interest and identify the different pieces of data that should be stored in database.
Relational database is based on fact that data in one table can be tied, or related to data in another table. To do this, database utilizes various types of keys to form or define these relationships.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
Carry out the following tasks below by using the correct SQL statements. Create the statements in Oracle by using the following steps (SQL > SQL commands > Enter Command). Determine the columns that make up the primary key of the l_lunch_items tabl..
Suppose you have a table which contains 27,000 data records, and you have unclustered B+ Tree Index on the table.
Identify and explain the differences between a stack and a queue data structure
MCIS 630 Database Systems: - Write a recursive SQL query that outputs the names of all subparts of the part with part-id “P- 100”.
Design a Database schema
Developers have noticed that EMP table doesn't have an assigned primary key. EMP_ID column has been selected to be the primary key.
What is meant by a weak relationship? Provide an example. What is meant by weak entity? What do you understand by relationship degree?
Create and run the following sql queries and submit the screen shot of your result. Also submit the file lab_06_03. sql
Controls which need a database to either execute transaction completely or not at all.
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