PART 7: How to Retrieve the Last Inserted Identity Value in SQL Server in H|NDI | SCOPE_IDENTITY()
#SQLServer #IdentityColumn #SCOPEIDENTITY #SQLTutorial #DatabaseLearning #TechDataWithAnuj #SQLTraining #SQLInterviewQuestions #LearnSQL #DatabaseDevelopment #SQLTips
Welcome to TechDataWithAnuj 🎯
In this video, we will learn How to Retrieve the Last Inserted Identity Value in SQL Server step by step with practical examples. This is one of the most common and important questions for SQL Server developers, DBAs, and interview preparation.
Whenever we insert a new record into a table that contains an Identity Column, SQL Server automatically generates a unique ID for that record. But as a developer, we often need to know:
👉 What was the last inserted identity value?
👉 How can we safely retrieve it, even if multiple users or triggers are running?
In this tutorial, we will cover:
✅ What is an Identity Column in SQL Server?
✅ How auto-increment works in tables.
✅ Methods to retrieve the last inserted identity value:
SCOPE_IDENTITY() → Best and safest method (returns value for current scope only).
@@IDENTITY → Can give wrong value if triggers are involved.
IDENT_CURRENT('TableName') → Table-specific, but not session-specific (may show other users' values).
✅ Insert examples with Employees table.
✅ Practical demonstration of how each method behaves.
✅ Trigger example to show the difference between SCOPE_IDENTITY() and @@IDENTITY.
✅ Best Practices – Why you should always use SCOPE_IDENTITY().
📌 Example Queries Covered in Video:
CREATE TABLE Employees (
EmpID INT IDENTITY(1,1) PRIMARY KEY,
EmpName VARCHAR(50),
DeptName VARCHAR(50)
);
INSERT INTO Employees (EmpName, DeptName) VALUES ('Anuj', 'HR');
SELECT SCOPE_IDENTITY() AS LastInsertedID;
SELECT @@IDENTITY AS LastInsertedID;
SELECT IDENT_CURRENT('Employees') AS LastInsertedID;
🎯 Why This is Important?
Useful for real-world applications like retrieving last order ID, employee ID, invoice ID, etc.
Commonly asked in interviews for SQL Server developer and DBA jobs.
Helps to maintain data accuracy and avoid fetching wrong identity values.
By the end of this video, you will have complete clarity on:
✔ Which method to use and when.
✔ Why SCOPE_IDENTITY() is the safest approach.
✔ How triggers can affect @@IDENTITY.
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#SQLServer #IdentityColumn #SCOPEIDENTITY #SQLTutorial #DatabaseLearning #TechDataWithAnuj #SQLTraining #SQLInterviewQuestions #LearnSQL #DatabaseDevelopment #sqltips
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