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.

Posted Date: 4/3/2013 1:23:34 AM | Location : United States

Ask an Expert

Related Discussions:- Initial thought process, Assignment Help, Ask Question on Initial thought process, Get Answer, Expert's Help, Initial thought process Discussions

Write discussion on Initial thought process
Your posts are moderated

Write your message here..

Related Questions

What are the layers of data description in r/3, What are the layers of data... What are the layers of data description in R/3? There layesr are there:- The external layer. The ABAP/4 layer. The database layer.

How is a multidimensional array defined pointer, How is a multidimensional ... How is a multidimensional array defined in terms of a pointer to a collection of contiguous arrays of lower dimensionality ? C does not have true multidimensional arrays. Howev

What is the significance of the memory table ''screen'', What is the signif... What is the significance of the memory table 'SCREEN'? At runtime, attributes for every screen field are stored in the memory table called 'SCREEN'.  We need not declare this

Function in NOR gate, function nor gates W=A,B,C,D=~(AB)*~(CD) function nor gates W=A,B,C,D=~(AB)*~(CD)

First-order inference rules, First-Order Inference Rules: Here now we ... First-Order Inference Rules: Here now we have a clear definition of a first-order model is that we can define soundness for first-order inference rules in the same way such we

Difference between perl and mod_perl, Perl is a language and MOD_PERL is a ... Perl is a language and MOD_PERL is a module of Apache used to increase the performance of the application.

What is task identifier, Q. What is task identifier? Each and every PVM... Q. What is task identifier? Each and every PVM task is uniquely recognized by an integer known as task identifier (TID) assigned by local pvmd. Messages are received from and s

What is electronic cash, What is electronic cash? E-cash is cash which ... What is electronic cash? E-cash is cash which is shown by two models. One is the on-line form of e-cash which permits for the completion of all types of internet transactions.

Explain the categories of design patterns, Question: (a) Explain the th... Question: (a) Explain the three categories of design patterns. Give two examples from each category. (b) When describing a pattern what is the purpose of "The Intent", an

Explain sample instruction format of mips instruction, Q. Explain Sample In... Q. Explain Sample Instruction Format of MIPS instruction? All MIPS instructions are of same size and are 32 bits long. MIPS designers chose to keep all instructions of same len