I have names. I want to set unique name as: (name + ', ' + name + ', ' + ....) for text box value. This sql query work in my machine, but not work in telerik report designer, error message:
The variable name '@
myParameter' has already been declared. Variable names must be unique within a query batch or stored procedure.
DECLARE @myParameter VARCHAR(max)
SELECT @myParameter = COALESCE(@myParameter + ',', '') + g.[Name]
FROM [dbo].[NotificationEX] AS n
LEFT JOIN [dbo].[NotificationEXPurchaseMetods] AS m ON m.[ID] = n.[PurchaseMetod]
LEFT JOIN [dbo].[NotificationEXPurchaseMetodGroup] AS g ON g.[ID] = m.[Group]
WHERE [Placer] = 76875 AND [Status] IN (4, 14) AND [PublishedDate] >= GETDATE() - 365
GROUP BY g.[Name]
SELECT @myParameter
This not help for my script: https://docs.telerik.com/reporting/knowledge-base/how-to-use-local-variables-in-a-sql-query-used-by-the-sqldatasource-component