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Currently I am taking database management system and my teacher wants my to fill

ID: 3679783 • Letter: C

Question

Currently I am taking database management system and my teacher wants my to fill in these fill in the blank questions.

A single piece of data is a _______________________.

______________________________invented the first punched card.

Name one challenge with storing data today.

Software to manage data is called __________________________.

Herman Hollerith founded ______________________________.

DDL is known as ______________________________________.

A basic SQL statement has the following 3 parts _______________, _____________________ and __________________________.

In the like clause, what matches any group of characters of any length? _________________

     

T or F, Or comes before And?

  The where-clause limits the number of ______________ that are selected from the database.

Three typical cardinalities are ________________________, _______________________________, and _______________________________

Intersection data is the same as this type of entity _________________________.

A relationship of one entity to occurrences of the same type of entity is called _______________________________.

A ________________________________ involves 3 different entity types.

Modality is _____________________________________________.

           

Four operations that can be performed on stored data are ______________________________ , _______________________________, _______________________________, _______________________________

The ability to tie pieces of related data together is called ____________________________.

In general data redundancy is good for a system. T or F. ______________

     

Name three data control issues.

  Hierarchical databases are known as ______________________ approaches to database.

Explanation / Answer

      sql transaction statements

    sql schema statements

          one-to-one (1:1)

          one-to-many (1:M)

          many-to-many (M:N)

   insert

   retrieve

   update

   delete

          data security

          backup and recovery

          concurrency control

      

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