Coding⏱️ 2 min read📅 2026-06-03

How to Fix: How to update Identity Column in SQL Server?

Reset SQL Server identity column to start from a specific value.

Quick Answer: Use the DBCC CHECKIDENT function to reset the identity column.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. ✅ Best Solutions to Fix It
  3. ✨ Wrapping Up

Changing or resetting an identity column in SQL Server can be a bit tricky, especially when dealing with large datasets. In this guide, we'll walk you through the best way to fix this issue before the records increase.

⚠️ Common Causes

  • Identity columns are often used in conjunction with other tables, leading to cascading effects when updating the identity column.

✅ Best Solutions to Fix It

Method 1: Re-seeding the Identity Column

  1. Step 1: Select the table with the identity column and run the following command to re-seed the identity: `DBCC CHECKIDENT ('tableName', RESEED, 0);`

Method 2: Dropping and Re-creating the Table with the Identity Column

  1. Step 1: Drop the table by running `DROP TABLE tableName;`
  2. Step 2: Create a new table with the identity column and insert the existing data: `CREATE TABLE tableName (column_name INT IDENTITY(1,1)); INSERT INTO tableName SELECT * FROM oldTableName;`

✨ Wrapping Up

It's essential to test the changes thoroughly before deploying them to production. Additionally, consider using a transaction log to track changes and ensure data consistency.

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

❓ Frequently Asked Questions

🛠️ Related Fixes

How to Fix: Stuck in tutorial hell after 4 years: How do I b

Fix Stuck in tutorial hell after 4 years: How do I bui. Practice build

How to Fix: Trying to sync mutliple audio tracks to a movie

Fix Trying to sync mutliple audio tracks to a movie bu. Consider using

How to Fix: Failed to merge latest branches from upstream re

Fix Failed to merge latest branches from upstream repo. Try running 'g