To use Aggregate functions on subgroups within the total result set, place the Aggregate function in the Select clause and add the Group By clause to the query.
<h3>What is an aggregate function?</h3>
An aggregate function is known to be a tool that functions only by calculating one or more values and then it also returns a single value.
Conclusively, The aggregate function is a tool that is often employed with the GROUP BY clause and HAVING clause of the SELECT words.
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Answer:
The answer to this question is given below in the explanation section.
Explanation:
The value stored by a variable can be changed after it is assigned(true).
The value of a variable can be changed after it is assigned, for example:
int a=10;
and we can change the value of variable a in letter program such as:
a=15;
Variables are a name for a spot in the computer's memory (true).
it is true, because the variables value stored in the computer's memory and we can access theses values by their name (variable name). so Variables are a name for a spot in the computer's memory.
Variable names can be words: such as temperature or height (true).
Yes, the variable name can be words such as height, width, temperature etc.
The value stored by a variable cannot be changed after it is assigned (false).
It is noted that the value stored by a variable can be changed after it is assigned. However, it is noted that is some programming language, you can't change the value of static variable.
Breakers with adequate short-circuit must be installed in the panelboards.
<h3>What are these equipment about?</h3>
Common Overcurrent Protection Devices (OCPDs) are known to be Breakers or fuses that are often used to protect the full unit from too much current.
Note that Equipment such as switchboards and panelboards are often installed in an electrical system and they have to be of adequate measure of short-circuit current condition.
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Answer:
performs banking services for commercial banks in districts where it operates.
Explanation:
The Federal Reserve System ( popularly referred to as the 'Fed') was created by the Federal Reserve Act, passed by the U.S Congress on the 23rd of December, 1913. The Fed began operations in 1914 and just like all central banks, the Federal Reserve is a United States government agency.
Generally, it comprises of twelve (12) Federal Reserve Bank regionally across the United States of America.
Hence, the Fed performs banking services for commercial banks in districts where it operates, as well as providing services to the general public.
