Examlex
A referential integrity constraint specifies that the existence of an attribute in one table depends upon the existence of a foreign key in the same or another table.
Mid-Seventeenth Century
A period in history referring to the years 1650 to 1660, marked by significant social, political, and cultural changes.
German Immigrants
People from Germany who have migrated to other countries, notably to the United States during the 19th century, seeking economic opportunities and political freedom.
Protestant Sects
Various religious groups within Protestantism, characterized by different doctrinal beliefs or practices but unified in their separation from the Catholic Church.
Religious Diversity
The existence of a variety of religious beliefs, practices, and denominations within a given society or community.
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