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For that you need to write a SQL SP that will take that report parameter and use it inside the SQL SP to build dynamic SQL code that you execute from there.
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For that you need to write a SQL SP that will take that report parameter and use it inside the SQL SP to build dynamic SQL code that you execute from there.

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The fields i have taken in matrix are from a sp...so my doubt is will the report accept value from another sp for the same field? 
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The fields i have taken in matrix are from a sp...so my doubt is will the report accept value from another sp for the same field?

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Ok, so you should modify that SP to include the new parameter and if not null build dynamic code then execute with new group by.
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Ok, so you should modify that SP to include the new parameter and if not null build dynamic code then execute with new group by.

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This is my stored procedue can you please let me know how to modify it according to group. <a href="https://filedb.experts-exchange.com/incoming/2011/03_w11/417828/SP.txt" target="_blank" class="file-inline" title="procedue (2 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>SP.txt</a>
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This is my stored procedue can you please let me know how to modify it according to group. SP.txt [https://filedb.experts-exchange.com/incoming/2011/03_w11/417828/SP.txt]

SP.txt

sp-new.sql

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Hi All,<br />
<br />
I want to change the &nbsp;row grouping values(in a matrix report) dynamically depending on the values of a parameter.<br />
For EX. I Have a column grouping for category for total price in a matrix report and i have a row grouping on States . But i want to change the row grouping from states to customers depending on the value passed in the parameter. How can i do that?<br />
<br />
- Karru<br />

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Hi All,

I want to change the  row grouping values(in a matrix report) dynamically depending on the values of a parameter.
For EX. I Have a column grouping for category for total price in a matrix report and i have a row grouping on States . But i want to change the row grouping from states to customers depending on the value passed in the parameter. How can i do that?

- Karru


Dynamic changing of row grouping using vaules from parameter

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.