Here 4GL is stands for fourth generation language.
Some of the examples are VB, SQL etc.

4GL is a grouping of programming languages which are invented to get closer to human language than 3GLs.

Now the question is how to 4GL is closer to human language?
So we will get answer from SQL query. We have to find out the number of students whose names are Jayesh in a table.

Select * form student where name = ‘Jayesh’;

Its same as humans speaks.

But the question is what is 3GL?
So 3GL is high level languages like JAVA, C++.

Other than 4GL and 3GL there is 1GL,2GL,5GL too.
1GL, include machine language.
2GL, includes assembly language.
5GL, includes neural networks and artificial intelligence.


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