Initial thought process, Computer Engineering

Assignment Help:

Initial thought process:

Design a script which was simple and user friendly.  Integrate procedures/functions to extract data under the hood.  I focused on giving the user the option to retrieve information based on a time period, meaning using start date and end date to define a search constraint.  For example, if a user wants information from 1-MAR-12 to 8-MAR-12, he or she can plug those dates in as search parameters.

Queries:  I designed the queries to answer the project questions.

Scripts:  pop_fact_table.sql, which means populate fact table, receives 2 parameters type, DATE, uses the dateas conditions within a select statement to create a cursor.These parameters are used to set a time period boundary.  Also the order_items idsare extracted because they are unique and I used them as a condition to get theoi.movie_id, dml.distributor_id, store_id, o.total_payment, o.tax, number_of_itemsdata from multiple tables.  I used order_completed_date because I felt it was importantto extract information for orders completed instead of just using the ordering date.Ordering date does not mean the order was completed.  Also I fed this date intoa function which could build my time dimension table and return the time_id to insert into the facts table.  Finally, the information gathered from order_items were inserted in the facts table.

  • Fill_time_dim.sql receives a parameter type, DATE, from pop_fact_table.sql, analyzes the date, then determines the month, quarter and year in which it belongs. Finally it uses this data and a generated time_id from sequence to populate the time dimension table.
  • Star_schema_table.sl drops and creates the shell for the 4 dimensions tables and the fact table.
  • Add_constraints.sql sets the 4 dimension primary keys as primary and foreign keys on the facts table.
  • User_interface.sql is used to simulate a user's terminal requesting information. Initially, it builds the table shells and adds constraints. Once the user determines his/her search time period, data is etracted from the operational database and is placed in the facts table.

Related Discussions:- Initial thought process

Why is xml superior to other forms of data exchange, Why is XML superior to...

Why is XML superior to other forms of data exchange? The XML gives universal data format for integrated electronic business solutions. Other database systems and Relational dat

Critical section., what is critical section problem in operating system wit...

what is critical section problem in operating system with diagram

The source to the current version, How do I update an existing copy of the ...

How do I update an existing copy of the source to the current version? Ans) As the common code changes, you might need to update your copy to have the lastest version. To do tha

Explain cocomo model, A COCOMO model is :- COCOMO:- Constructive Cost Es...

A COCOMO model is :- COCOMO:- Constructive Cost Estimation Model.

Show the major benefits of microprocessor, Q. Show the Major benefits of mi...

Q. Show the Major benefits of microprocessor? Microprocessor is a complete CPU on a single chip. The major benefits of microprocessor are:  Powerful butCompact; can

Which processing is not a part of synthesis phase, Which processing is no...

Which processing is not a part of Synthesis phase? Ans. Perform LC processing is not a part of Synthesis phase.

Answering systems- database query, Answering Systems / Database Query T...

Answering Systems / Database Query There are a large number of opportunities for get faster through parallelizing a Database Management System (DBMS). However, the actual purpo

Disadvantages of unauthenticated sites, Disadvantages of unauthenticated si...

Disadvantages of unauthenticated sites All the Units entering the Intranet must be scrutinised to ensure that they are not coming from the unauthenticated sites or users. It a

Operations of a scientific calculator, A program is to be developed to simu...

A program is to be developed to simulate the operations of a scientific calculator. List the facilities to be provided by this calculator. Analyze this using a DFD 0- level and 1-

Can we run matlab without graphics, Sometimes you may need to run scripts w...

Sometimes you may need to run scripts which have plotting commands without displaying the plots and without going into the script to comment out the commands. An example: if you're

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd