Examlex
A constraint that requires an instance of an entity to exist in one relation before it can be referenced in another relation is called an insertion anomaly.
Government
A system or group of people governing an organized community, often a state, and set policies, laws, and regulations.
Private Markets
Markets where transactions occur directly between parties without significant regulatory oversight, often avoiding public exchanges.
Public Goods
Goods that are non-excludable and non-rivalrous, meaning they can be consumed by anyone and one person’s consumption doesn’t reduce availability to others.
Free-riders
Individuals who benefit from resources, goods, or services without paying for them, often seen in public goods and collective risk scenarios.
Q1: MySQL concurrency options include four scopes for
Q9: MySQL supports BEFORE triggers.
Q30: By default,the E-R diagrams created in the
Q30: Each physical record is addressed by its
Q32: In IDEF1X,a non-specific relationship is indicated by
Q50: An ad-hoc SQL query is typically written
Q54: In relational terms as defined by E.F.Codd,a
Q64: The CODASYL DBTG model structured data relationships
Q65: A primary key is a candidate key
Q95: Briefly explain the different types of files