Small problem changing from 2.65 to 2.7...

IF EXISTS (SELECT 1 FROM syscolumns WHERE id=object_id('[DiscountRequirement]') and NAME='RestrictedProductVariantIds') 
BEGIN 
DECLARE @entity_id int 
DECLARE cur_existing_entity CURSOR FOR 
SELECT [Id] 
FROM [DiscountRequirement] 
WHERE [DiscountRequirementRuleSystemName] = N'DiscountRequirement.HasAllProducts' 
or [DiscountRequirementRuleSystemName] = N'DiscountRequirement.HasOneProduct' 
or [DiscountRequirementRuleSystemName] = N'DiscountRequirement.PurchasedAllProducts' 
or [DiscountRequirementRuleSystemName] = N'DiscountRequirement.PurchasedOneProduct' 
OPEN cur_existing_entity 
FETCH NEXT FROM cur_existing_entity INTO @entity_id 
WHILE @@FETCH_STATUS = 0 
BEGIN 
DECLARE @settingname nvarchar(1000)  
SET @settingname = N'DiscountRequirement.RestrictedProductVariantIds-' + CAST(@entity_id AS nvarchar(max)) 

DECLARE @RestrictedProductVariantIds nvarchar(MAX) 
SET @RestrictedProductVariantIds = 0 


DECLARE @sql nvarchar(1000) 
SET @sql = 'SELECT @RestrictedProductVariantIds = [RestrictedProductVariantIds] FROM [DiscountRequirement] WHERE [Id] = ' + ISNULL(CAST(@entity_id AS nvarchar(max)), '0') 
EXEC sp_executesql @sql,N'@RestrictedProductVariantIds int OUTPUT',@RestrictedProductVariantIds OUTPUT 


IF NOT EXISTS (SELECT 1 FROM [Setting] WHERE [name] = @settingname) 
BEGIN 
INSERT [Setting] ([Name], [Value]) 
VALUES (@settingname, @RestrictedProductVariantIds) 
END 

--fetch next identifier 
FETCH NEXT FROM cur_existing_entity INTO @entity_id 
END 
CLOSE cur_existing_entity 
DEALLOCATE cur_existing_entity 

--drop RestrictedProductVariantIds column 
EXEC('ALTER TABLE [DiscountRequirement] DROP COLUMN [RestrictedProductVariantIds]') 
END
Msg 245, Level 16, State 1, Line number 1
Conversion failed when converting the nvarchar value '87,88' to data type int.

EXEC sp_executesql @sql,N'@RestrictedProductVariantIds int OUTPUT',@RestrictedProductVariantIds OUTPUT

EXEC sp_executesql @sql,N'@RestrictedProductVariantIds nvarchar(MAX) OUTPUT',@RestrictedProductVariantIds OUTPUT