Question

This query works about 3 minutes and returns 7279 rows:

SELECT identity(int,1,1) as id, c.client_code, a.account_num, 
        c.client_short_name, u.uso, us.fio, null as new, null as txt 
INTO #ttable
FROM accounts a INNER JOIN Clients c ON 
    c.id = a.client_id INNER JOIN Uso u ON c.uso_id = u.uso_id INNER JOIN 
    Magazin m ON a.account_id = m.account_id LEFT JOIN Users us ON 
    m.user_id = us.user_id
WHERE m.status_id IN ('1','5','9') AND m.account_new_num is null 
    AND u.branch_id = @branch_id
ORDER BY c.client_code;

The type of ‘client_code’ field is VARCHAR(6).

Is it possible to somehow optimize this query?

Answer 1

Insert the records in the Temporary table without using Order by Clause and then Sort them using the c.client_code. Hope it should help you.

Create table #temp
(
your columns…
)

and Insert the records in this table Without Using the Order by Clause. Now run the select with Order by Clause