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To test for null values in columns you would use the _________________ operator.
Customer Service
encompasses the support and advice provided by a company to those people who buy or use its products or services.
Synergy
The cooperation or interplay between two or more entities, materials, or forces, resulting in a combined outcome that surpasses the total effects of each one operating independently.
Out Of The Box
Thinking or ideas that are creative and unconventional, not limited by existing norms or perceptions.
Technical Prowess
Technical prowess refers to expertise or skill in a particular technical field or discipline.
Q15: Converting an optional 1-M relationship into a
Q20: A relational algebra operator applied to
Q36: Testing for Null values is done by
Q37: In a _ index,the order of the
Q39: If the combination Prstno,Prstempno is chosen as
Q40: A controversial topic can exacerbate situational anxiety.
Q52: _ is the brain's automatic response to
Q55: The execution of the command SELECT Cname
Q66: One common refinement to an initial ERD
Q73: In system development methodology,the _ model describes