click below
click below
Normal Size Small Size show me how
Lesson 6 Objective
Ciw EXAM
Question | Answer |
---|---|
Database? | an organized collection of information that pertains to a particular subject or purpose |
Relational database? | a database that contains multiple tables related through common fields |
Table? | a collection of data about a specific topic, organized into columns and rows |
Field? | a category of information in a table |
Record? | a collection of information consisting of one or more related fields about a specific entity |
Common field? | a field, contained in two or more tables, that forms a relationship between the tables |
Relationship? | a connection between two or more tables based on a common field |
Primary key? | a field containing a value that uniquely identifies each record in a table |
Foreign key? | a field in a related table that refers to the primary key in another table |
Search engine? | uses a robot or spider program to browse the Web following hyperlinks, and index the content that it finds |
Information portal? | only finds Web sites based on manual submissions |
Common operators are? | AND, OR, NOT, NEAR, FAR, BEFORE, ADJ (adjacent) Plus sign ( + ) Minus sign ( - ) Brackets ( [ ] ) Quotation marks ( " " ) Asterisk ( * ) Period ( . ) |
Popular? | generally bases information on secondary resources |
Scholarly? | bases its research on primary resources |