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kondaur [170]
3 years ago
11

Suppose you have two tables: officer and gentleman. what question(s) can be asked by using the union operator?

Computers and Technology
1 answer:
Alik [6]3 years ago
8 0
The union of two tables is basically the total of the two tables, so "or" questions would be my guess.
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Match the term to its correct defintion
emmasim [6.3K]

Answer:

View Base tables: Virtual table based on a SELECT query

CREATE VIEW statement: Data definition command that stores the query specification in the data dictionary

DROP VIEW statement: Data definition command that removes the query specification in the data dictionary

Explanation:

Views are virtual tables, which can be created by select queries using the real database tables.

Creating and dropping views can be done by the CREATE VIEW and DROP VIEW statements.

<u>CREATE VIEW syntax:</u>

CREATE VIEW view_name AS

SELECT column1, column2, ...

FROM table_name

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<u>DROP VIEW syntax:</u>

DROP VIEW view_name;

5 0
3 years ago
When mehtod X calls method Y , method Y called methhod Z, and method Z calles method X, this is called
taurus [48]

Answer:

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Explanation:

Indirect recursion is when a method calls other method which calls the original method again.

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public static int mthd1( int n)

{

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}

public static int mthd2(int n2)

{ return mthd1( n2-1); }

This is an example of indirect recursion.Where mthd1 calls mthd 2 and mthd 2 calls mthd 1 again.

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You need to add \n to start a new line
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