Tutorials ADO.NET Core Tutorial
Enterprise Transaction Procedures — Complete Guide
Enterprise Transaction Procedures — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of ADO.NET Core Tutorial on Toolliyo Academy.
On this page
ADO.NET Core Tutorial · Lesson 30 of 100
Enterprise Transaction Procedures
Foundations ✓ → SQL & safety → Production → Projects
SQL & safety · 2 — Procs, tx, performance · ~6 min · Module 3: Stored Procedures
What is this?
Enterprise transaction procedures encapsulate multi-statement money/stock changes with TRY/CATCH and explicit TRAN.
Why should you care?
ShopNest transfers and inventory moves belong in well-tested procs or carefully written C# transactions.
See it live — copy this example
Use a .NET console or API project with SQL Server LocalDB. Run dotnet run after pasting.
CREATE OR ALTER PROCEDURE dbo.usp_Inventory_Reserve
@Sku NVARCHAR(32), @Qty INT
AS
BEGIN
SET NOCOUNT ON; SET XACT_ABORT ON;
BEGIN TRY
BEGIN TRAN;
UPDATE Inventory SET Qty = Qty - @Qty WHERE Sku=@Sku AND Qty >= @Qty;
IF @@ROWCOUNT <> 1 THROW 50001, 'insufficient', 1;
COMMIT;
END TRY
BEGIN CATCH
IF @@TRANCOUNT > 0 ROLLBACK;
THROW;
END CATCH
ENDWhat happened?
- XACT_ABORT helps.
- Check @@ROWCOUNT.
- THROW after rollback.
- Call with ADO.NET parameters.
Practice next
- Create reserve proc.
- Call from C#.
- Force insufficient qty.
- Add audit insert inside TRAN.
- Return leftover qty as OUTPUT.
Remember
TRY/CATCH + TRAN. Rowcount checks. THROW.
ShopNest stock reserve proc
Checkout calls usp_Inventory_Reserve.
Outcome: No negative stock under concurrency.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
Sign in to ask a question or upvote helpful answers.
No questions yet — be the first to ask!
