Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

9. Define and explain each of the following key terms/concepts of a Database: Wh

ID: 3920471 • Letter: 9

Question

9. Define and explain each of the following key terms/concepts of a Database: What is a database? What is a table? What is a record (or row)? What is a field (or column)? What is a primary key? How many primary key(s) can you have in a table? What is a foreign key? How many foreign key(s) can you have in a table? What is a RDBMS (relational database Deleting field(s) The wizard Long Integer type 10. Start Access and find out what view is the default that it opens up in. Describe and Explain all the views (Datasheet view, Backstage view, Design View, Layout View, etc) for Access. Identify what you can or cannot do in any of the views Ranges from 2,147 483,648 to 2,147.483,647 in four bytes

Explanation / Answer

Database: Database is structured set of data hat is organized to be easily accessed, managed and updated. Databases support storage and manipulation of data.

Table: Set of data values represented by horizontal and vertical rows and columns with a specific number of columns and unlimited number of rows.

Record: A record represents a subject with defining and unique field values. Record represents a row in a fatabase table which is a specific instance of an object.

Field: It is a data structure for a single piece of data. Field values can be taken up by the table records.

Primary Key: A special database field which can uniquely identify all the table records. Primary key has unique values for all the data rows in the table. Table can have only one primary key but this one key may consist of multiple columns.

Foreign key: Foreign key provides link between the two tables. It acts as a cross reference because it referennces primary key of another table. Table can have multiple foreign keys with a recommended limit of 253.

RDBMS: Database represented relations or tables structured to persist relations between the data stored in the database.