diff --git a/Lab8/Task1.sql b/Lab8/Task1.sql
new file mode 100644
index 0000000..07d9f6c
--- /dev/null
+++ b/Lab8/Task1.sql
@@ -0,0 +1,11 @@
+USE AdventureWorks;
+
+GO
+CREATE PROCEDURE Sales.GetDiscounts
+AS
+BEGIN
+	SELECT Description, DiscountPct, Type, Category, StartDate, EndDate, MinQty, MaxQty
+	FROM Sales.SpecialOffer;
+END
+
+EXEC Sales.GetDiscounts;
\ No newline at end of file
diff --git a/Lab8/Task2.sql b/Lab8/Task2.sql
new file mode 100644
index 0000000..a0d37ad
--- /dev/null
+++ b/Lab8/Task2.sql
@@ -0,0 +1,13 @@
+USE AdventureWorks;
+
+GO
+CREATE PROCEDURE Sales.GetDiscountsForCategory
+@Category nvarchar(50)
+AS
+BEGIN
+	SELECT Description, DiscountPct, Type, Category, StartDate, EndDate, MinQty, MaxQty
+	FROM Sales.SpecialOffer
+	WHERE Category IN (@Category);
+END
+
+EXEC Sales.GetDiscountsForCategory 'Reseller'
\ No newline at end of file
diff --git a/Lab8/Task3.sql b/Lab8/Task3.sql
new file mode 100644
index 0000000..714caba
--- /dev/null
+++ b/Lab8/Task3.sql
@@ -0,0 +1,19 @@
+USE AdventureWorks;
+
+GO
+CREATE PROCEDURE Sales.GetDiscountsForCategoryAndDate
+@Category nvarchar(50) = NULL,
+@DateToCheck datetime = NULL
+AS
+BEGIN
+	IF @DateToCheck IS NULL SET @DateToCheck = GETDATE();
+	SELECT Description, DiscountPct, Type, Category, StartDate, EndDate, MinQty, MaxQty
+	FROM Sales.SpecialOffer
+	WHERE Category IN (@Category) AND (@DateToCheck BETWEEN StartDate AND EndDate);
+END
+
+EXEC Sales.GetDiscountsForCategoryAndDate 'Reseller'
+
+DECLARE @DateToCheck datetime
+SET @DateToCheck = DATEADD(MONTH, 1, GETDATE())
+EXEC Sales.GetDiscountsForCategoryAndDate 'Reseller', @DateToCheck
\ No newline at end of file
diff --git a/Lab8/Task4.sql b/Lab8/Task4.sql
new file mode 100644
index 0000000..4c73ceb
--- /dev/null
+++ b/Lab8/Task4.sql
@@ -0,0 +1,63 @@
+USE AdventureWorks;
+
+GO
+CREATE PROCEDURE Sales.AddDiscount
+@Description nvarchar(255),
+@DiscountPct smallmoney,
+@Type nvarchar(50),
+@Category nvarchar(50),
+@StartDate Datetime,
+@EndDate Datetime,
+@MinQty int,
+@MaxQty int,
+@NewProductID int
+AS
+BEGIN
+	BEGIN TRY
+		INSERT INTO Sales.SpecialOffer
+		(SpecialOfferID, Description, DiscountPct, Type, Category, StartDate, EndDate, MinQty, MaxQty)
+		VALUES (@NewProductID, @Description, @DiscountPct, @Type, @Category, @StartDate, @EndDate, @MinQty, @MaxQty)
+	END TRY
+	BEGIN CATCH
+		INSERT INTO dbo.ErrorLog
+		VALUES (GETDATE(), USER_NAME(), ERROR_NUMBER(), ERROR_SEVERITY(), ERROR_STATE(), ERROR_PROCEDURE(), ERROR_LINE(), ERROR_MESSAGE())
+	END CATCH
+END;
+
+GO
+DECLARE @StartDate datetime, @EndDate datetime
+SET @StartDate = GetDate()
+SET @EndDate = DateAdd(month, 1, @StartDate)
+DECLARE @NewId int
+SET @NewId = 25;
+EXEC Sales.AddDiscount
+'Half price off everything',
+0.5,
+'Seasonal Discount',
+'Customer',
+@StartDate,
+@EndDate,
+0,
+20,
+@NewId OUTPUT;
+SELECT @NewID;
+
+DECLARE @StartDate datetime, @EndDate datetime
+SET @StartDate = GetDate()
+SET @EndDate = DateAdd(month, 1, @StartDate)
+DECLARE @NewId int, @ReturnValue int
+
+EXEC @ReturnValue = Sales.AddDiscount
+'Half price off everything',
+-0.5, -- UNACCEPTABLE VALUE
+'Seasonal Discount',
+'Customer',
+@StartDate,
+@EndDate,
+0,
+20,
+@NewID OUTPUT
+IF (@ReturnValue = 0)
+SELECT @NewID
+ELSE
+SELECT TOP 1 * FROM dbo.ErrorLog ORDER BY ErrorTime DESC
\ No newline at end of file