Why do we need to optimize a DBMS with SQL performance tuning, even though they automatically optimize SQL queries?
There is considerable room for improvement since the DBMS uses general optimization techniques rather than focus on specific techniques dictated by the special circumstances of the query execution. A poorly written SQL query can, and usually will, bring the database system to its knees from a performance point of view. The majority of current database performance problems are related to poorly written SQL code. Therefore, although a DBMS provides general optimizing services, a carefully written query almost always outperforms a poorly written one.
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Arnold has made romantic advances toward Kelly, his employee, for the past three months. Kelly is not interested in Arnold and has told him so, but Arnold continues to make suggestive comments and tries to show Kelly inappropriate selfies of himself. Arnold has suggested over and again that if Kelly will not go out with him, he could be out of a job. While Kelly is certainly a victim of sexual harassment, he is also being victimized by Arnold’s use of which type of power?
A. legitimate B. referent C. coercive D. expert
Is a DFD an effective documentation technique for identifying who or what performs a particular task? Explain
An organization's values statement identifies fundamental beliefs about what is important to the organization
Indicate whether the statement is true or false
Steve Perez, a senior manager at Lanset Inc., is satisfied to contribute to his organization in spite of receiving a lower salary than what other organizations might offer him. Steve's attitude reflects his
A. organizational commitment. B. authoritarian behavior. C. negative affectivity. D. selective perceptions. E. locus of control.