Why if in SELECT * add COUNT() will show one row?

Question

SQLite

SELECT * from a table will print multiple rows of data, but SELECT *, COUNT() will only print the first row with COUNT() at the end. How to remove * from table by adding COUNT?

Answer 1

Because it COUNT()is an aggregate function.
Group by any column, and as a result there will be exactly as many rows as there are unique values ​​in this column, and the COUNT count will be based on these values. Without grouping, the count will be for the entire sample.
Or do separate requests an output of lines and counting.