I need to create a view with the record count from 3 different tables but with the same columns.
That is, these queries
SELECT COUNT (*) AS count_a from table1 ta
SELECT COUNT (*) AS count_b from table2 tb
SELECT COUNT (*) AS count_c from table3 tc
Introduced in a view, the join
can be a solution but I think this would take a lot of work, and likewise being a different count in each table, when using join it would discard some, if in a table there are 100, 200, 15. No I know if the join would be the solution to this.
I wanted to use the GROUP_CONCAT
but reviewing a bit does not seem to be a solution, anyway. In simple words I want the count of different tables in a view so that it is displayed
Desired result
count_a | count_b | count_c |
---|---|---|
100 | 200 | 15 |
Greetings and thanks in advance
PS: right now I do not remember well how the JOIN works
If you want to display only the result of these 3 counts, without any join between tables. I suggest to use a script like this :
create view desired_result
as select * from (
(SELECT COUNT(*) AS count_a from table1) t1,
(SELECT COUNT(*) AS count_b from table2) t2,
(SELECT COUNT(*) AS count_c from table3) t3);
You can try it with this fiddle link