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What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
why are older data models are being replaced by new data models
Define what Immediate database modification technique uses? Ans: Both undo and redo.
List any two significant differences between a file processing system and a DBMS. File Processing System vs. DBMS Data Independence - Data independence is the capacity t
give me a diagram about physical or internal level
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
Whst is logical schema ? Logical schema is the entire database.
We have a buildup of payments that need to be processed. You will need:- To prepare customer account on our site Process payment (you must have working Paypal account to d
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