A tool that reads and analyses event trace information from a database management system.

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SQL queries text log analyzing

I have a text log file (log4net) with many SQL queries in parametrized format and with stacktraces. It also contains output from other loggers which should be ignored. An example of one log entry: ...
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9 views

Auditing Application calls

We have an old central DB which we need to upgrade to a new solution. Given it's age and position many applications call it.. and due to staff turnover not all are known or documented. It's also ...
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42 views

Which column to trust about the event order in a profiler result?

Hi I recorded some events using the SQL profiler and I want to work out the exact order of what happened first. But I am having trouble in this basic task, because what ORDER BY EventSequence showed ...
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25 views

Profiling postgres with gprof: no data/gprof folder and 'no time accumulated'

I'm attempting to profile Postgres with gprof. A gmon.out file successfully gets created in both the data directory and in the working directory where I launched the client (pgbench) process from. ...
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10 views

Workload Capture

Hopefully this is a straight forward question. But if I want to capture a workload then all I need to capture are: RPC:Completed SQL:BatchCompleted I don't need to capture SP:StmtCompleted do I, ...
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19 views

How to find out user activity for calls made from an application server?

I have to log user activity on the SQL server for the calls made from SAP application server, the problem is the Application server does not send any User information along with each call and uses a ...
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42 views

Is there any way to know which SP executed from “exec sp_execute” in SQL profiler?

I have traced a SQL profiler and got some process tracings. I got one command in which the stored procedure is executing by the command exec sp_execute Can I trace that which stored procedure had ...
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1answer
23 views

Where are sql profiler trace files stored?

Can't seem to find an answer to this.. During a recent sql profile I noticed C:\ was rapidly filling up. Does anyone know exactly where these files are stored? is it part of SSMS?
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57 views

Why is SQL Profiler showing empty for database name and database id?

I have some code that uses Entity Framework to call a stored procedure in SQL Server. If I run SQL Profiler and filter by the database it is calling, I can see that the profiler correctly shows the ...
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53 views

How to change MongoDB slowOpThresholdMs in mongo shell

I need to decrease the slowms trash hold to 50, can't find the way of doing that without restarting the mongod process.
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1answer
44 views

get number of events per day from profiler trace

I am trying to do something that I thought would be simple but turns out it is not (for me). I have 5 days of profiler trace files that I have imported to a single table. I want to query the table and ...
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1answer
106 views

One SQL different Results by using SQLOLEDB or MSDASQL

I'm using VB6 with SQLOLEDB and MSDASQL. By switching the provider I notice that I'm getting different results with one query. My query checks some server settings and executes one of two BACKUP ...
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1answer
343 views

How to find the stored procedure which executed an event?

I have a problem where a certain stored procedure disappears occasionally and I need to find out which script deletes it. I found this piece of code which gives the events related to the deletion of ...
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1answer
715 views

Stuck in “query end” status every 5 minutes

I'm sick of seeing data in the slow query log, so I decided to check out what the fuss was all about. An UPDATE query that is running up to tens of times per second is sometimes really slow. Here is ...
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1answer
308 views

Capturing sp_executesql statement in sql profiler

After catching some data in a SQL Profiler session, I can almost always see a second entry of type RPC:Completed for each query using a sp_executesql statement. I know that this is done to create re-...
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50 views

SQL Server Profiler performance

I was wondering if I set a filter for just a particular user does it limit the amount of resource consumption used by sql server and does using a filter(depending on the filter) limit the performance ...
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0answers
51 views

SQL Server Profiler

I had run a SQL trace on SQL server 2008 r2 and had originally saved it to the table format. This table now resides in the database and I was wondering could I export the contents of the table to a ...
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2answers
203 views

How to find queries that timed out in MongoDB?

Is it possible to find queries in the system.profile-Collection of a MongoDB-database that did not finish due to a timeout? I found some queries that ran longer than the time specified in $maxTimeMS. ...
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2answers
704 views

Is an SQL Server trace 'considered harmful' in production?

Context: Careful DBAs We've been bought out a few times and our latest overlords have DBAs who keep carefully guard their production database servers. Overall this is good. However, we have run ...
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49 views

Compare Traces with RML Utilities

I am new to RML and am trying to use it to capture a trace, replay it on another server and then compare the two. I have managed to capture a trace using the server side script that comes with it and ...
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2answers
275 views

Blocked Process Report SQL Server 31 hour duration

I have an application (.NET EF 6 ) which is getting timeouts when submitting/reading data from the database. Whilst trying to diagnose the problem I used Blocked Process Reports from SQL server ...
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2answers
41 views

Meaning of “The database X needs to be upgraded” in ClearTrace

I'm trying out ClearTrace from http://www.scalesql.com/cleartrace/download.html , but it isn't very user friendly from my first impression. I have a database in SQL Server 2008 that I'm adding in the ...
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1answer
176 views

Stored Procedure Resultset Row Count and Resultset Size in Bytes/KBs

Is there any way to get total row count and size of result-set generated by a stored procedure execution? @@ROWCOUNT is a good option if its already added in each stored procedure but I just want ...
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1answer
299 views

Capture and Replay workload

We have a new server which we are migrating too and want to see the potential benefits of the hardware. So the idea is that we capture a workload and replay this against our new box. My question is ...
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2answers
61 views

mysql copying to tmp table duration

I have a web site which started to have performance issues because of a mysql query which is executed for each request. I have the following table structure. Post table (125000+ records) id: ...
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83 views

Output in SQL Profiler has results with Database ID as NULL

I ran profiler to filter out certain applications connecting an environment but the results has application for Database_id "NULL".. Am I missing anything ? Also another question , does all the ...
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82 views

Is it possible to trace queries that never complete with SQL Server 2008 R2?

Running SQL Server 2008 R2. We have some queries that typically take less than one second to complete, but, occasionally, they are taking longer than 30 seconds which causes a client timeout. ...
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192 views

This Extended Events session works on Dev but not on Pro. Why? [closed]

I do have the following Extended Event session on my Dev and Pro boxes: CREATE EVENT SESSION [sp_showplan] ON SERVER ADD EVENT sqlserver.query_post_execution_showplan(SET collect_database_name=(1) ...
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1answer
5k views

MySQL profile on query “Creating Sort Index” using 75% of the total time

We are trying to figure how to optimize a query (taking around 100ms), and running profile we see Creating Sort Index using 75% of the total time. First, what exactly effects creating the sort index? ...
3
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1answer
74 views

meaning of ## in SQL Server Profiler trace data

I'm running a trace using the SQL Server Profiler. The trace data contains the following lines: WHERE CAST(LEFT(pc.Time_stamp,11) AS DATETIME >= ## AND CAST(LEFT(pc.Time_stamp, 11) AS DATETIME) &...
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2answers
179 views

SQL profiler running on prod

we have got performance experts analyzing our SQL server by running profiler traces in production. The profiler trace creates 20 GB of trace files everyday since 2 weeks. Is this a correct approach? ...
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1answer
273 views

Is there a parser for Postgres' auto_explain to make it easier to read and understand?

We have a number of Postgres Functions that each call a number of other Postgres Functions. If you simply EXPLAIN ANALYSE a call like SELECT parent_function(), the output is minimal, since it doesn't ...
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2answers
4k views

Performance Benchmark - MySQL vs PostgreSQL [closed]

this is my first question here in DBA. I wish to do a performance comparison between MySQL and PostgreSQL using same database on the basis of total time taken to parse + execute + send result back ...
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1answer
119 views

Query Plan showing missing index warning on trivial statements

I have a Stored Procedure (ReportAdvancedUP) which runs fast (~1sec) in MSSMS but takes a long time (~1.8mins) via our Web Application. I am aware that this usually comes down to bad choice of ...
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243 views

Procedure showing different duration / reads in Profiler vs. SSMS

I have a database which is getting a lot of calls to the following procedure: exec dbo.SM_SP_MAILEVENTNAMES 167260 In Profiler using the TSQL_Duration trace these calls show up as: EventClass: RPC:...
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1answer
13k views

Identify faulty sub-query (subquery returned more than 1 value)

I am trying to resolve an issue with a query that fails with this error: Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when ...
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1answer
297 views

Measuring DB time of application using SQL Server Profiler

I have an application residing on the same host as a SQL Server database. There is a scenario in which this application is slow and due to co-existence of IIS and SQL Server, I cannot get which one ...
0
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1answer
203 views

Query Processing at backend (I/O on disk)

I have a table with 100k rows created on PostgreSQL 9.3 create table demo_bbb ( id numeric NOT NULL, code_bbb character varying, column_02 character varying, column_03 character varying, ...
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1answer
381 views

Perfmon and SQL Server Clustering

I'll be going onsite to run some performance tests for a client. They have a Windows Failover Cluster, which has a clustered instance of SQL Server. Let's assume for this post that my client's ...
4
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1answer
275 views

Find reason long running stored proc SQL Server

I have a stored proc which is called every 2.5 seconds by a program, 24-7. This proc normally runs under the 10 milliseconds. A few times a day (3 -5 times) it takes around 42953 milliseconds to run (...
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1answer
1k views

Profiling and debugging “Incorrect syntax was encountered while parsing :setvar.”

I have the following script using SQLCMD setvar, but I receive an error when I parse the script: :setvar dbname "PROD" :setvar backuppath = "e:\sql\restore\PROD.bak" USE [master]; GO -- backup the ...
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1answer
59 views

MySQL: What is SQL profiler, does it different for MySQL?

Whenever SQL profiling comes in mind, focus goes to two below sections: GUI tools like - MONyog, Neor Profile SQL set profiling =1; Execute Query; show profiles; show profile; I am really confuse ...
3
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1answer
184 views

Maxdop in Profiler

Say I run a server side trace against a SQL Server 2008 R2 instance, which has Maxdop = 1 in place, then I run the trace through readtrace.exe to get RML files for replay. Does the replay preserve ...
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1answer
57 views

What is the generally accepted method and tools for profiling MySQL queries?

Profiling database queries is difficult, and dependent on database technology. In MySQL, what is the usual (or, in deference to that, a great) process for profiling a query? For example: Run the ...
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164 views

Significant difference between duration for querys in SHOW PROFILE and SHOW PROFILES?

I have use mysql profiler to optimize an opencart query which takes more than 10 seconds to executes. mysql> SHOW PROFILES; +----------+-------------+-----------------------------------------------...
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2answers
913 views

SQL Profiler Shows Update (EventClass) with No Errors, But Data in Table is Not Changed

I am trying to debug a web app that uses a database and I need a little help. The problem is that part of the code throws a timeout error. I started using SQL Server Profiler to check the ...
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1answer
305 views

Profiling parameters

I was trying to fine the parameters of a query I suspect to be causing unnecessary logical read and eventually captured it in profiler, however parameters @p3 and @p4 are not listed. Is anyone able ...
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98 views

How to analyze incoming DML in SQL Server 2005?

I have database and specifically one table that is used for batch data transfer from another organization. With each run the table is truncated and rows are re-inserted. I want to handle that process ...
4
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3answers
2k views

SQL Profiler - Insert values?

I setup an SQL profiler to run, but I am not seeing any values for updates/inserts. Is there a way to see them? All I see is stuff like this: insert into some_tbl(id, col1, col2, col3) values ( @P0 ...