MS DB Query/SP Optimization

I have got a ms SQL relation database. There is one complex search query with around 30 joins and self joins. It has around 21 where clauses. I am looking for ways to speed up this query. You can add more index to database or restructure this query.

I will provide you with copy of database.

I can see the query only has a where clause filtering on a name (company name I think). Leaving the search fairly open ended like this can sometimes cause longer response times, compared to filtering by a specific client, sample number, job, date range etc. Also this is a free text field (which requires a number of joins) which probably contributes to the longer time.

Skills: SQL, Microsoft SQL Server, Database Programming, Database Administration

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About the Employer:
( 11 reviews ) Underdale, Australia

Project ID: #22767974

51 freelancers are bidding on average $186 for this job


Hi, sounds to me like lack of covering index that would reduce number of reads inside the database. It is usually the case when there is numerous Joins+WHERE conditions. However, if you are able to share backup, I coul More

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