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

Interpolation search, Interpolation Search The next task is to implemen...

Interpolation Search The next task is to implement a variable size decrease-and-conquer solution to search. See Levitin [2007] pp 190 for a detailed description of the interpol

Recombination - canonical genetic algorithm, Recombination: Therefore...

Recombination: Therefore during the selection and mating process then the GA repeatedly lines up pairs of individuals for reproduction. Hence the next question is how to gener

Brief explanation of all elements in activity diagrams, ? Activities: An ac...

? Activities: An activity shows an action that performed in the system. ? Transitions: Transitions are shown by open arrow heads. Transitions are used to specify the flow among

Why does ipv6 use separate extension headers, Why does IPV6 use separate ex...

Why does IPV6 use separate extension headers? Explain. The extension headers in Ipv6 are utilized for economy and extensibility. Partitioning the datagram functionality in sepa

Explain about the term rtl fix, Explain about the term RTL Fix. RTL Fix...

Explain about the term RTL Fix. RTL Fix: An RTL fix implies you change the Verilog/VHDL code and you resynthesize. This generally means a new Plance and Route. RTL fixes wou

What is a 3-d accelerator, What is a 3-D Accelerator?  3-D Accelerator...

What is a 3-D Accelerator?  3-D Accelerator is no magic technology. It is merely an accelerator chip which has built-in ability to perform the mathematics and algorithms neede

Message passing programme development environment, In a multicomputer syste...

In a multicomputer system the computational load amid different processors should be balanced.  To pass information between different nodes message passing technique is used. The p

Registers used in IA-64 architecture, Q. Registers used in IA-64 architectu...

Q. Registers used in IA-64 architecture ? Registers: The IA-64 architecture comprises a very generous set of registers. It has an 82-bit floating point as well as 64-bit inte

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