Tutorials ADO.NET Core Tutorial
Bulk Operations — Complete Guide
Bulk Operations — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of ADO.NET Core Tutorial on Toolliyo Academy.
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ADO.NET Core Tutorial · Lesson 48 of 100
Bulk Operations
Foundations ✓ → SQL & safety → Production → Projects
SQL & safety · 2 — Procs, tx, performance · ~6 min · Module 5: Performance Optimization
What is this?
Bulk operations combine SqlBulkCopy, TVPs, and MERGE for high-volume load/merge patterns.
Why should you care?
ShopNest warehouse sync needs upsert of thousands of SKUs quickly.
See it live — copy this example
Use a .NET console or API project with SQL Server LocalDB. Run dotnet run after pasting.
// 1) SqlBulkCopy into StagingSku
// 2) MERGE StagingSku INTO Products AS t
// WHEN MATCHED THEN UPDATE ...
// WHEN NOT MATCHED THEN INSERT ...;
Console.WriteLine("bulk load + MERGE upsert");What happened?
- Stage → MERGE is safer than bulk into live tables.
- Keep staging clear after.
Practice next
- Bulk into staging.
- MERGE upsert.
- Truncate staging.
- TVP alternative for mid-size.
- Output $action counts.
Remember
Bulk + MERGE. Staging tables. Clear after.
ShopNest warehouse upsert
Nightly SKU sync via staging MERGE.
Outcome: Catalog stays in sync fast.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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