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Just to add, this comes from Microsoft technet:<br />
<br />
&quot;ExecutionLogDaysKept: The number of days to keep report execution information in the execution log. Valid values for this property include 0 through 2,147,483,647. <b>If the value is 0 entries are not deleted from the Execution Log table</b>. The default value is 60.&quot;<br />
<br />
So in your case all history should be kept. Best to check the records anyway as described above to make sure.
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Hey Koen,<br />
<br />
Thanks for your reply.<br />
In the report server database, I see exactly last 60 days records. <br />
Is there anyway to check if the ExecutionLogDaysKept value was altered or changed in the past?<br />
Thanks again
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I don't think it's possible to check this. It might be wise to change the value back to what you would like it to be though. It's an administrator setting so normally only admins would be able to touch it. As such I don't think it's worthwhile to create a custom trigger to check for changes to that particular field. Just check periodically if the issue resurfaces. If it does, you can take follow up action.
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Ok, that's odd. I thought that's the value that's displayed in the field mentioned in your original post.<br />
Anyway, glad to be of assistance.
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I've requested that this question be closed as follows:<br />
<br />
Accepted answer: 0 points for Abhinav Singh's comment <a href="https://www.experts-exchange.com/questions/28552615/SSRS-Execution-Log.html?anchorAnswerId=40427708#a40427708" rel="ugc">#a40427708</a><br />
<br />
for the following reason:<br />
<br />
This worked for me and helped me understand my server configuration
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Can i ask why you request to close the question rather than accept my comments as answer? You asked for clarification on what a 0 value signifies, which was given. I also provided you some ways to check what was exactly happening. I fail to see why the question is not answered.
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Hey Koen,<br />
<br />
Sorry for inconvenience. I'll accept your first post as solution.<br />
Thanks for replying.
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Both the comments helped equally clear my doubts.
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<div class="content wysiwyg-content">
Hello Guys,<br />
<br />
I had a doubt regarding the Executionlogs of SSRS database.<br />
At my workplace, in the SSRS server properties, under Logging, I see that the field <br />
<b>Remove Log entries older than this number of days has been set to 0</b><br />
<br />
I don't understand what does it signifies. Wherever I searched on the Internet I found that the default value is 60 days. Also under the advanced option of SSRS server report properties, the field <br />
<b>ExecutionLogDaysKept is left blank</b>.<br />
<br />
Kindly explain this to me.<br />
<br />
Thanks and Regards
</div>
</div>


Hello Guys,

I had a doubt regarding the Executionlogs of SSRS database.
At my workplace, in the SSRS server properties, under Logging, I see that the field 
Remove Log entries older than this number of days has been set to 0

I don't understand what does it signifies. Wherever I searched on the Internet I found that the default value is 60 days. Also under the advanced option of SSRS server report properties, the field 
ExecutionLogDaysKept is left blank.

Kindly explain this to me.

Thanks and Regards

SSRS Execution Log

SQL Server Reporting Services (SSRS) is a server-based report generation software system from Microsoft. It can prepare and deliver a variety of interactive and printed reports and is administered via a web interface or its web service. Its web services interface also supports the development of custom reporting applications. Finally, SSRS can also be integrated with SharePoint. SSRS competes with other business intelligence tools, most prominently Crystal Reports.

SSRS

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.