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

Evaluation functions, Evaluation Functions: Evaluation functions calcu...

Evaluation Functions: Evaluation functions calculate approximately the score which can be prove of guaranteed if a particular world state is reached. Same like in chess, evalu

What the first part of the address identifies in e-mailbox, The first part ...

The first part of the address in electronic mailbox identifies? The first part of address in E-Mail identifies the user's mail box.

Determine the handles data rate of broad band isdn, Broad Band ISDN handles...

Broad Band ISDN handles data rate of about (A) 64 kbps                                      (B) 100 mbps (C) 5.4 mbps                                    (D) 2.048 mbps

Write an assembly function which hides the cursor, Q. Write an assembly fun...

Q. Write an assembly function which hides the cursor? Write an assembly function which hides the cursor. Call it from a C program.             . PUBLIC CUROFF

Explain the fork-join, Explain the fork-join? fork-join: It is prim...

Explain the fork-join? fork-join: It is primitives in a programming language of higher level for implementing interacting processes. The syntax is as given below: fork

What are the attributes of the method, What are the attributes of the metho...

What are the attributes of the method? During implementation a process is characterized by various attributes maintain by the system: Its state Its identification

Explain interactive reporting, What is interactive reporting? A classic...

What is interactive reporting? A classical non-interactive report having of one program that makes a single list.  Instead of one extensive and detailed list, with interactive

#title.sequential circuit, design modulo 12 up synchronous counter using t ...

design modulo 12 up synchronous counter using t flip flop

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