SSRS: Multi-Value Parameters

Introduction

This tutorial explores the use of multi-value parameters in SQL Server Reporting Services (SSRS). Multi-value parameters allow users to select multiple values for a parameter, enabling more flexible and dynamic report generation.

Multi-Value Parameters in SSRS

Syntax

In SSRS, multi-value parameters are defined by setting the parameter's Allow multiple values property to true. The syntax for using multi-value parameters in a query is as follows:

SELECT column1, column2
FROM your_table
WHERE your_column IN (@your_multi_value_parameter);

Example

Consider a report where users can select multiple product categories:

SELECT ProductName, Category
FROM Products
WHERE Category IN (@SelectedCategories);

Output

The output will be a report containing data for the selected product categories.

Explanation

• Allow multiple values: Set this property to true for a parameter in the SSRS report designer.
• IN (@parameter): Use the IN operator in your SQL query to filter data based on the selected values.

Use

• Dynamic Filtering: Enable users to dynamically filter reports by selecting multiple values.
• Flexible Report Generation: Allow users to generate reports for a specific subset of data.
• Parameterized Queries: Use multi-value parameters in SQL queries to filter data based on user selections.

Important Points

• Multi-value parameters are often used in combination with the IN operator in SQL queries.
• Ensure that the parameter's data type matches the data type of the column you are filtering.
• Be aware of potential performance considerations when dealing with large datasets.

Summary

Multi-value parameters enhance the flexibility and interactivity of reports in SQL Server Reporting Services. By allowing users to select multiple values for a parameter, you empower them to customize reports to their specific needs. Understanding how to implement and leverage multi-value parameters is valuable for creating dynamic and user-friendly SSRS reports.