SQL - Primary Key. A primary key is a field in a table which uniquely identifies each row/record in a database table. Primary keys must contain unique values. A primary key column cannot have NULL values. A table can have only one primary key, which may consist of single or multiple fields. When multiple fields are used as a primary key, they are called a composite key.
Noun. 1. marginalization-the social process of becoming or being made marginal (especially as a group within the larger society); the marginalization of the underclass; the marginalization of literature. marginalisation. social process-a process involved in the formation of groups of persons.
Definition of demoralize for English Language Learners : to cause (someone) to lose hope, courage, or confidence : to weaken the morale of (a person or group) DEMORALIZE Defined for Kids