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1) Where can sub queries be placed in a SQL select statement ?
2) What tables are good candidates for indexes and what type of indexes would you place on those tables?
3) What type of data model is used in data marts to improve performance?
Identify the potential sales and department store transactions that can be stored within the database. Justify how Big Data tools could be used for forecasting sales and inventory of the department store.
Create Database Relationships- Your first task is to download a Microsoft Access database and create the relationships between tables in the database in Microsoft Access that has been populated with data from the Excel spreadsheet which includes t..
1. what a query execution plan?2. discuss the reasons for converting sql queries into relational algebra queries before
Create a list the holds the student grade (A, A-, B+,..), modify the appropriate table to accept only the grades in the list(you need to explain why you selected the above table to record the student grade).
Create a separate Data Dictionary documenting the fields and field properties for each of the tables. Make sure that the field names are fully qualified.
Knowing the customers for targeted advertising. The board would like to know which type of customers (age or gender) are more interested in which types of cars (type)
The ____ model was developed to allow designers to use a graphical tool to examine structures rather than describing them with text
Expand the XML file a little bit by making sure that it is valid as well as well-formed.
Suitable data that suits your requirement and design and explain the 3- schema architecture for the requirement.
A vendor builds multiple types of tablet computers. Each hs a type identification number and a name. The key specifications for each type include amount of storage and display type.
Use the Internet or computer magazines to investigate one of the following DBMSs: DB2, SQL Server, MySQL, Oracle, or Sybase
Create a context diagram using Visio or PowerPoint based on the information provided. Write a narrative describing the diagram.
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