Identify the user (end-user, programmer of application software, database admini

Question

Identify the user (end-user, programmer of application software, database administrator, and designer of database management system software) who would be most concerned with the following scenarios:

1. How data could be most efficiently stored on a disk.

2. If there is a vacancy on Flight 243.

3. How a relation could be stored as a sequential file.

4. How many times a user should be allowed to mistype a password before a conversation is terminated.

5. How the PROJECT operation (of the relational model) can be implemented.

Your quick response is greatly appreciated.

Explanation / Answer

1.How data could be most efficiently stored on a disk ---> It is implementation level concept .It is handle by designer of database management system software.

2.If there is a vacancy on Flight 243. How a relation could be stored as a sequential file ---> It is taking care by database administrator.

3. How many times a user should be allowed to mistype a password before a conversation is terminated --->This condition set by programmer of application software

4 .relational model -->

      I .Step- 1: Define the purpose of the Database (Requirement Analysis)

      II.Step- 2: Gather Data, Organize in tables and find &specify the Primary Keys

      III.Step- 3: Create Relationships between Tables

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