SQL Server Query Optimization

hello I think you could benefit a lot from an indexed view since you have many joins . I havent seen the exec plan but optimizing that sort of queries would require looking the table sizes , indexes , execution plans and other things .

Hi I am a database expert with 15 years experience in handling MS SQL databases. I have worked as DBA for large ERP databases and use to write and do performance tuning for SQL queries, procedures and triggers. Query speed depends on various factors. if it involves huge data, then it can be genuinely slow, where we may not be able to do much. but if the query is written badly, then we can rewrite the query to make it faster. indexes can help in some scenarios. can we please discuss on your specific cases and give ahead? If required, I can connect on team viewer or on a RDC and work on your server, that is how I normally work on remote SQL databases. Look forward to hear from you. Thanks Roni

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I am sql expert certified by Oracle corporation having more then 10 yrs of experience

hi I would like to work on with the query tuning and will let you know . please tell me what do you need

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Please message me so I will share your updated script. After that you will compare performance with your query and let me know. Please review my profile. I have 8 years and 2 month experience in SQL Server. Please let me know more details and when we will start. Sky pe: jikenjd

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I am an Australian technical Business Analyst with a decade's experience in SQL server programming. I have reviewed your query and can see some quick improvement wins (e.g. you can change your UNION statements to UNION ALL as you are assigning a unique ID To each query and UNION ALL will be more performant in this situation). I would love to chat to you further - would you be able to provide DB sample for me to optomise against?

Dear friend, we need the execution plan for this query, you did not include objects, or data to see where it could be improved,it is very difficult only with what you have attached, please post your .sqplan file, to grasp a better idea of what deserve to be improved.

I have experience in Database programming language. I have experience in Oracle, SQL server, DB2 and also having experience performance engineer.

If you don't have often insert update into this table, that it will be nice to add indexes. for table MNHHS_custom_ERF_ReceivedMessageView (receivedMessageId, isOpen index) for ERF_ReferralRequestView (receivedMessageId, status, referralRequestVersion index) for ERF_ReferralView (StatusCode, ServiceCode index) OR other suggestion in the union selects for ID 1, 2, and 5 the conditions that are in WHERE for the LEFT table to put in LEFT JOIN ON not in WHERE it will not select all the LEFT table rows and then filter by where. AND other suggestion in the union selects for ID 3,4,7 you don't need a CASE because don't have JOIN, all rows are filtered by WHERE don't have other rows of COUNT(NULL)

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I have been working as a SQL Server developer since last 6 years. I had a look at your queries. To optimize it, I'll have to see existing indexes on tables being used and then can tell you where/if you need indexing to improve performance of the query.

Hi.. This is vijay from India. Would like to assist you to tune the query. I am working as subject matter expert and having 10years of experience as sql dba. Let me know for further discussion. Relevant Skills and Experience Sql 2008, sql 2012,sql 2014 database administration

I work with query tunning in sql server, postgresql and mysql, I think I can help you. But the query plan is missing.

I work as a SQL developer have good knowledge of sp view function can debug them well Relevant Skills and Experience Warehouse MSBI ssis ssas ssrs SQL