Question

I was browsing for a solution to getting counts from multiple tables and I came across the following answer:

SELECT COUNT(*),(SELECT COUNT(*) FROM table2) FROM table1

It works great, however I can’t seem to get it to work for more than just 2 tables. My current code is as follows:

SELECT COUNT(*), 
(SELECT COUNT(*) FROM TABLE1),
(SELECT COUNT(*) FROM TABLE2),
(SELECT COUNT(*) FROM TABLE3),
(SELECT COUNT(*) FROM TABLE4),
(SELECT COUNT(*) FROM TABLE5),
(SELECT COUNT(*) FROM TABLE6),
(SELECT COUNT(*) FROM TABLE7),
(SELECT COUNT(*) FROM TABLE8),
(SELECT COUNT(*) FROM TABLE9),
(SELECT COUNT(*) FROM TABLE10),
(SELECT COUNT(*) FROM TABLE11),
(SELECT COUNT(*) FROM TABLE12),
(SELECT COUNT(*) FROM TABLE13),
(SELECT COUNT(*) FROM TABLE14),
(SELECT COUNT(*) FROM TABLE15),
(SELECT COUNT(*) FROM TABLE16),
(SELECT COUNT(*) FROM TABLE17),
(SELECT COUNT(*) FROM TABLE18)
FROM TABLE19

However, it only counts TABLE1 and TABLE19. I need to count all tables (TABLE1-18) as well as TABLE19 (hopefully using a structure to similar to the first example).

Answer 1

Depending on which DB this is it could slightly change…

For Oracle do something like:

Select (select count(*) from table1) as table1Count, 
       (select count(*) from table2) as table2Count
from dual

If it’s SQL Server then just leave off the from dual.

EDIT:

Since you mentioned you are using MySQL in the comments:

Get record counts for all tables in MySQL database