The other way you modify your solution is to store your pre-defined list of queries or stored procedures in a separate table and based on the selection from user, decide which query to run. In the drop-down box for input parameter set the label and provide value as a query or stored procedures in a single line. It is certainly possible, you will just have to modify the solution a little bit. I've tried several variations of "" and Environment.NewLine(), trying to get around it rdl directly in SSMS as a Custom Report, the parameter trips it up:Įrror: "The only supported value for a command parameter is an expression that references a single report parameter." Works great (in VS 2019), but trying to execute the. Would be nice to have a Power BI Report Builder version of this running as well :) ![]() UPDATE: Power BI Report Builder version was easy to build from the. Wednesday, Septem1:06:57 PM - Rob Karatzas When multiple options are selected in the parent report, the sub-report executes perfectly fine, and results are displayed as required (for all FacilityIds selected).īut, when only one option is selected in the parent report, the sub-report throws an error: Must declare the scalar variable your help on this The subreport is made using the method you described in the blog post : Create Dynamic SSRS Reports Using a Query as an Input Parameter ![]() I'm working on a SSRS paginated report, wherein a multi valued integer parameter is passed from the parent report to the sub-report. This helped me reduce the number of sub-reports needed from 20 to just 2. Create a new dataset using dynamic SQL code In TRY CATCH blocks for exception handling. Only columns: RowId, ColumnName and Value. The UNPIVOT operator to transform the query output from multiple columns to three When the informationįor the column names and values are available, sp_executesql is used again with Up to this point, the dataset and names of the columns are obtained. The column details of thisĬursor is obtained by using stored procedure _describe_cursor_columnsĪnd then the details of the columns are stored in the table variable. Is run as a cursor using sp_executesql stored procedure. The input query from the report parameter To the dynamic SQL query in line number 4. Note that the report parameter created in the previous step is passed as a parameter IF CURSOR_STATUS('global','query_cursor')>=-1 SELECT 1 RowId,'Error'ColumnName,ERROR_MESSAGE() SELECT ROW_NUMBER() OVER (ORDER BY (SELECT FROM FOR ColumnName IN BY RowIdĮXEC sp_executesql CURSOR_STATUS('global','query_cursor')>=-1 SET = 'DECLARE query_cursor CURSOR FOR ' ĮXEC _describe_cursor_columns NEXT from INTO -1)įETCH NEXT from INTO += ' NVARCHAR(MAX),', AS VARCHAR(6))+' NVARCHAR(MAX),', AS VARCHAR(6))+',' FROM ORDER BY ordinal_positionįETCH NEXT FROM query_cursor INTO ' INTO VALUES (' +')įETCH NEXT FROM query_cursor INTO ' +' We will work through a step-by-step approach to create a dynamic SQL report.Īdd a new parameter to your empty report as shown below:ĭECLARE TABLE (ordinal_position INT, column_name VARCHAR(255))ĭECLARE VARCHAR(255), INT, INT, INT, INT, INT, INT, INT, VARCHAR(255), INT, INT, INT, INT, VARCHAR(255)
0 Comments
Leave a Reply. |