Question

I have TableA which contains:

ID   |  CATEGORY   |    NAME
-------------------------
1    |   A         |   NAME01
2    |   B         |   NAME02
3    |   C         |   NAME03
4    |   D         |   NAME04
5    |   B         |   NAME05

So how can I count which of the Categorys in my table I have the most?
We can see it is the Category B, but in my real table I have more than 200 records added.
In the table I have 5 different Categories.

Answer 1

It seems like you can just use an aggregate function (count()) and a group by:

select category, count(category) Total
from TableA
group by category
order by Total desc

See SQL Fiddle with Demo

If you then want to return only the record with the most, you can add a LIMIT to it:

select category, count(category) Total
from TableA
group by category
order by Total Desc
limit 1

See SQL Fiddle with Demo