What is the total number of rows in each of the three table of database ? in SQL

Question

1.00/5 (2 votes)

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SELECT COUNT(*)
FROM Customer
UNION
SELECT COUNT(*)
FROM Transactions
UNION
SELECT COUNT(*)
FROM prod_cat_info

What I have tried:

SELECT COUNT(*)
FROM Customer
UNION
SELECT COUNT(*)
FROM Transactions
UNION
SELECT COUNT(*)
FROM prod_cat_info

Posted 7-Jan-22 0:47am

Shivam Kaushik

Updated 7-Jan-22 1:12am

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Richard Deeming 7-Jan-22 7:03am

You seem to have forgotten to ask a question.

1 solution

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OriginalGriff · Answer 1 · 2022-01-07T01:12:00

Solution 1

If what you are looking for is to get the result as a single query result, then try this:

SQL

SELECT (SELECT COUNT(*) FROM Customer) AS CustCnt,
       (SELECT COUNT(*) FROM Transactions) AS TransCnt,     
       (SELECT COUNT(*) FROM prod_cat_info) AS ProdCnt

Posted 7-Jan-22 1:12am

OriginalGriff

Comments

Maciej Los 11-Jan-22 7:23am

Single query with set of subqueries ;)