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Author Question: Parenthesis represent an optional element in the data dictionary. Indicate whether the statement ... (Read 52 times)

ETearle

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on: Jul 7, 2018
Parenthesis represent an optional element in the data dictionary.
 
  Indicate whether the statement is true or false

Question 2

Briefly explain the difference between an inner and an outer join.
 
  What will be an ideal response?


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morganmarie791

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

Inner joins return all the related tables from the two tables involved in the join. They do not return any records that do not have a related record. Outer joins return all the records from one of the tables in the join even if they do not have a related record in the other table. In the second table only the related records are returned.


ETearle

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Reply 2 on: Jul 7, 2018
Wow, this really help

diana chang

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Reply 3 on: Yesterday
Excellent

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