A super key is a set of one or more attributes that taken collectively allow us

A super key is a set of one or more attributes that

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none of the above 13.4NF is designed to cope with: 14.Every Boyee-Codd normal form is in
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15.Which command is used to remove all rows from a table? 16.Which of the following is an aggregate function in SQL? a.Unionb.Likec.Group Byd.Max 17.Which command is used to add a column to an existing table? 18.A deadlock exists in the system if and only if the wait for graph: 19.Rollback of transactions is normally used to: 20.Prevention of access to the database by unauthorized users is referred to as:a.Integrity b. Productivityb.Security d. Reliability Buy EBook and Get 325 MCQs with Answers on Database Management Systems.
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  • Winter '17
  • DR Mubashir

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