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

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DBM_INIT distributed transaction rollback in profiler

SQL Server 2008 R2. WebSphere 7.x Windows 2008 server. Our application is JEE in WebSphere 7.x, and so uses Microsoft JDBC I believe 4.0 to connect to the db server. During one of our batch jobs, ...
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82 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
42 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
48 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
85 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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40 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
647 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
75 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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1answer
55 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: ...
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239 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
72 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 ...
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82 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
120 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 ...
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1answer
115 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
272 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
40 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 ...
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1answer
87 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
33 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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75 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
351 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
172 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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59 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 ...
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127 views

Mysql profiler different duration information_schema.profiling

Hi! I have a problem and no idea how to resolve it. I'm trying to use mysql profiler. I'm using the command: set profiling=1; to turn it on. Later, i execute my query which is correlated ...
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3answers
629 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 ...
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2answers
594 views

Error using triggers with SQL Server Profiler Tables

After noticing 100's of sort_warning errors in a recent analysis of the default trace output, I am trying get the text of the queries causing those warnings. SQL Server Profiler has an event ...
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86 views

SQL Server 2012 Profiler - ShowPlan XML Batch ID

I have an application that makes RPC calls for a single procedure, most calls run in a few miliseconds. Occasionally the call takes 5-7 seconds. I'm trying to catch an execution plan for one of the ...
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113 views

Collect information about currently running queries only when client timeout occurs

We would like to be able to collect information about all currently running queries when (and only when) a client timeout occurs in SQL Server 2008. I know I can collect information about the client ...
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245 views

Disable the SQL profiler to be executed on particular query running from ASP.NET application

I have set of queries executing from an ASP.NET application and I don't want those SQL queries to be traced by SQL Server Profiler. How can I do it?
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271 views

How to restrict SQL server profiler to show my symmetric key password while executing query from C# code?

I used symmetric encryption to encrypt sensitive data in my application. I don't want anyone see my password for decrypting the data. But system admin can able to see symmetric password in SQL Server ...
2
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1answer
447 views

Interpretation of a column in SQL Server profile trace

In a trace table generated by Profiler I tried to determine the origin of a lock using the column ObjectID2 joined to sys.allocation_units. The results are not good. It identifies many tables that ...
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1answer
145 views

Does Express Profiler have a major effect on performance of SQL Server Express

I'm wondering does running Express Profiler against an SQL Express Server have a major impact on performance. The versions of SQL Express I'm looking to run against are on 2008 and 2013. This is the ...
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92 views

can this mysql query be optimized further?

I have this query select counterparty_id, max(id) max_id from client_administrations where counterparty_type = 1 and effective_on <= '2013-10-22' group by counterparty_id When I ...
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204 views

What filter to use in SQL Profiler for socket write error

Can someone please help with intitial SQL Profiler filter setup to narrow down the settings and reduce the noise when I'm trying to find out the reason behind socket write error ? Basically the ...
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3answers
1k views

Duration Field in Profiler

I would like to monitor the script which takes more than 25 Sec. When i use filter i am not able to see the duration taken by the script. How can we get the time taken to execute the query. My ...
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0answers
145 views

Linked server query in profiler

I was profiling a DB for queries against it but have noticed that when a table in the DB is accessed through a linked server this does not show in profiler. Can anyone advise on why this is or what ...
3
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1answer
831 views

Does the Binary Data column shown in SQL Profiler contain useful information?

Many of the events that SQL Profiler captures include a Binary Data column. The documentation for these event classes merely repeats the fact that this column contains "Binary value dependent on the ...
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1answer
44 views

Apply profiler template to saved log

I need to check for deadlocks in my customer's system. He provided me with unfiltered logs. Can I filter them after running the trace somehow? (I don't have direct access to his server) It seems ...
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4answers
3k views

Identifying Unused Stored Procedures

This next year, I am helping an effort to clean several SQL Server environments. We have about 10,000 stored procedures and estimate that only about 1000 of them are used on a regular basis, and ...
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1answer
79 views

SQL:StmtStarting event originated from application

What does an SQL:StmtStarting event originated from application mean? Does it mean a raw SQL statement executed directly from the application? For example, in the case of an SP:StmtStarting, it means ...
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1answer
2k views

Diagnosing Blocking issues using Blocked Process report

I have an application that is going down as a result of timeouts. During these times we see a massive spike in response times from the database that holds ASP session state. In an effort to to ...
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1answer
259 views

How to profile a particularly slow or inefficient query

I'm currently writing queries for my database but this is the first time I've dealt with large data sets of any sort, and I'm now finding that I need to improve the performance of my queries. ...
3
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3answers
916 views

Cannot open SQL Server profiler file

Scenario Debugging a failed transaction, I asked the DBA to run a trace on SQL Server. Eventually he send me a .trc file. Issue I use the fn_tracegettable() function to access the trace: select * ...
2
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1answer
55 views

Is there any way to get the optimization time in MySQL?

I'd like to see the time optimizer takes to optimize a query. Is there any way to get that time?
3
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1answer
65 views

CPU column 5x higher on one machine vs another?

We're running into a strange issue in a deployed version of our product where the performance is just not very good. When we restore a backup of their DB on one of our machines, it performs as we ...
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2answers
157 views

Server side trace to database

How can I set up a server side trace that dumps to a database instead of a trace file? I set-up and tested a trace configuration I want with Sql Server Profiler that dumps only needed info straight ...
4
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2answers
841 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 ...
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2answers
482 views

SQL Server Profiler 2005 on remote SQL Server 2008 Express?

Is it able to trace remote SQL Server 2008 using SQL Profiler 2005? If yes, anyone knows what else should I do, if during loging in appeares this message "Unable to locate trace definition file for ...
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51 views

Email alerts and Server Side Tracing

This question is in regards to SQL 2005 and email alerts on long running queries. Does this sound like the best approach (with the least impact to the server) to receiving alerts to long running ...
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1answer
813 views

Query in procedure occasionally does not finish

I have a question about how to debug very strange behavior (nested query getting stuck) in SQL Server 2008 R2 (Standard Edition) running a query. Sometimes (unfortunately not always) when I run a ...
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2answers
4k views

What does 'system lock' mean in mysql profiling a LOAD DATA INFILE statement?

2M rows inserted using LOAD DATA INFILE to innodb takes 7.5min, and profiling shows 99% of that time is in "System lock". Does this tell me anything useful? mysql> set profiling=1; ...