1
vote
1answer
58 views

Reading a SQL Server Execution plan

I am very new to any type of tuning but have been learning more.. One of my specific databases one of the problems identified with slow queries are a number of Implicit conversions. It is my ...
0
votes
0answers
14 views

Database Engine Tuning Advisor - is number of queries important or not

By number i don't mean number of unique signature queries I mean raw number For example i have this query select name from my table where id=3 It is a single unique signature Having it only 1 ...
0
votes
1answer
292 views

SQL Server 2012 Tuning process exited unexpectedly. DTAEngine

I am using Windows Server 2012 x64 and SQL Server 2012. I am running the Database Tuning Advisor with these settings : Advisor plan cache. Database workload master. Check my database all the ...
0
votes
4answers
415 views

What can cause Reads to slow down on SQL Server 2008R2?

Our primary DB is 15GB in size. The server has 16GB of RAM. We are using the simple recovery model. Lately we've noticed that our custom apps lookups - just basic reads with adhoc SQL statements - ...
2
votes
2answers
332 views

What are the options of reducing tempdb latency?

Took the job of monitoring and tununing a SQL Servers 2012 Enterprise Ed. SP1 (64 bit) on Windows Server 2008 R2 Standard Ed. All of them are running inside virtual machines. One SQL Server per a ...
0
votes
1answer
865 views

How to measure a perfomance of SQL Server database? [closed]

I have the task to improve the performance of a SQL Server 2012 database (one of 4 in an instance) by 60% confirmed by corresponding statistics. So, I need to measure "performance" of the RDBMS ...
2
votes
1answer
281 views

Getting the most out of SQL Server with a million rows a day [closed]

I have a windows service that is inserting 1000 rows at 1 minute intervals to a SQL Server 2008 Standard database table that looks like: id, datetime, key_id, value key_id is a foreign key to ...
4
votes
2answers
604 views

Slow SSRS Report in production

I have an SSRS report which gets its data by firing a series of stored procedures. Now the report is timing out big time when run in production, yet when I pull down the prod database and restore to ...
3
votes
1answer
394 views

Need help with long running query

UPDATE: Adding a clustered index to each work table covering all fields reduced the query run times to su-bsecond. I consider this question closed. Thanks for taking the time to read this post - ...
1
vote
0answers
541 views

SQL Server Database Engine Tuning Advisor vs DMV queries

What is the best way to tune the indexes on my production database? I normally use the following query : SELECT user_seeks * avg_total_user_cost * (avg_user_impact * 0.01) AS [index_advantage], ...
0
votes
3answers
362 views

Custom SQL Server Computer Build

I hope this is the right place to ask this question. I'm a user at StackOverflow, and when I perused the StackExchange websites, this was the best match I could find. So, if I've posted in the wrong ...
1
vote
1answer
338 views

Database Tuning Advisor can't find tables across two databases

I've got a Python script which accesses two SQLServer 2008 databases. If I run it and take a trace to capture all events that occur as a result of the script, and then put that trace through the ...
3
votes
2answers
283 views

Is it important to release memory back to the server?

I have a SQL Server 2008 R2 instance running on a production system. I'm not a DBA; I'm more a developer, but my client is currently asking me: How important is it to release memory from SQL Server ...
1
vote
1answer
131 views

Is it possible to allow write-through computed columns for legacy code that expects a column to be read/write?

I have this existing table for IP storage: CREATE TABLE [dbo].[IPAddresses]( [ID] [int] IDENTITY(1,1) NOT NULL, [IPv4Address] [varchar](15) NULL, [IPv6Address] [varchar](45) NULL, ...
0
votes
3answers
467 views

SQL Server : primary keys advice to my whitepaper needed

I've tired to explain to every new junior developer in our r&d team why he should use Primary Keys and how to do that. So I decided to write small whitepaper, which every new developer should ...
4
votes
1answer
251 views

Is there a way to make SQL Server's Database Tuning Advisor use more than one core?

I'm using SQL Server's Database Engine Tuning Advisor to generate recommendations for performance improvements on my database server. For the "consuming workload" step, it appears to use all ...
10
votes
2answers
1k views

SQL Server: Has anyone used the large-page allocations tuning option?

Has anyone used the tuning option of using TF834 large page allocations. I was just reading an MS article on it and was wondering if anybody had used it and seen performance gains. Are there any ...
25
votes
2answers
1k views

Where can I find database tuning exercises for learning?

As a developer, often DBAs take responsibility for resolving performance issues at the database level so we don't get that much experience diagnosing, tuning, refactoring queries etc. I'm looking ...
14
votes
4answers
5k views

How can I tell WHY an insert on a certain table is slow?

I know that an INSERT on a SQL table can be slow for any number of reasons: Existence of INSERT TRIGGERs on the table Lots of enforced constraints that have to be checked (usually foreign keys) Page ...