Examlex
When joining three or more tables,you need to specify a join condition for one pair of tables.
Social Convoy
A theory describing how people move through life surrounded by circles of close family, friends, and acquaintances that provide social support.
Extended Family
A family that extends beyond the immediate family, including grandparents, aunts, uncles, and other relatives.
Friendships
Social bonds between individuals based on mutual affection, trust, and support, often providing a source of happiness and well-being.
Age
The length of time that a person or thing has existed; often measured in years and used to indicate maturity or lifespan stages.
Q3: Within the database environment,a data model represents
Q7: DBMS implementations are typically similar in complexity
Q8: The SQL execution activities are performed by
Q15: A design trap occurs when a relationship
Q32: The first step in the ER model
Q43: A(n)_ is a block of code (containing
Q50: If T1 has not unlocked data item
Q56: The _ processor is the software component
Q73: What is a key and why is
Q75: Creating the conceptual design and selecting DBMS