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1. Design the logic, using a looping structure, for a program that outputs every even number from 1 through 25 along with its square and cube.
2. Mr. Sanchez owns 12 apartment buildings. Each building contains 20 units that he rents for $725 per month each. Design the flowchart, using a looping structure, that would output 12 payment coupons for each of the 20 apartments in each of the 12 buildings. Each coupon should contain the building number (1 through12), the apartment number (1 through 20), the month (1 through 12) and the amount of rent due.
Define Sequence A sequence is a set of integers 1, 2, 3 that are generated in order on demand. Sequences are regularly used in databases because lots of applications require ev
Explain the concepts of relational data model? Relational Data Model - The relational model was first introduced through Prof. E.F. Codd of the IBM Research in the year 1970
Describe the Composite Key Composite Key: Sometimes one key is not enough to uniquely recognize a row. E.g. in a single class Roll is enough to search a student, but in the w
Databases and data warehouses both are databases and both contains number of rows and columns of tables containing data. Data warehouse is really different from databases because d
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
Which component is not included in database environment ? A users component is not included in database environment.
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
The Concurrent Transactions Almost every commercial DBMS support multi-user environment. Therefore, allowing multiple transactions to proceed concurrently. The DBMS must make
State the terms Designing the database and Normalization Designing the database: Out of the ERD we have formed, it is very easy to verify the tables, the attributes which the
What is the role of ORDER By Clause? ORDER BY clause: The ORDER BY clause permits you to sort the records in your result set. The ORDER BY clause can just be used in select s
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