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11 results for "Unique Constraint"

Why Am I Getting a Duplicate Key Error When Inserting Records in SQL?

Ananya Desai

Ananya Desai

7moPublished Jan 14, 2026, 6:17 AMUpdated Jan 14, 2026, 8:30 AM

6.5k

SQL UNIQUE Constraint

Naresh Beniwal

Naresh Beniwal

6yPublished Jan 7, 2020, 12:00 AMUpdated Feb 25, 2020, 1:11 AM

33.8k

Entity Integrity Constraints - Primary Key and Unique constraints

Govardhan P

6yPublished Nov 18, 2019, 12:00 AMUpdated Nov 19, 2019, 4:26 AM

33.8k

Primary Key Constraint And Unique Constraint in SQL Server

Vipendra Verma

Vipendra Verma

14yPublished Jul 12, 2012, 5:42 AMUpdated Jul 12, 2012, 6:50 AM

1.3k

Unique constraint on varchar field

B M Suchitra

B M Suchitra

14yPublished Nov 25, 2011, 6:09 AMUpdated Nov 25, 2011, 6:39 AM

2.2k

Unique Constraint in SQL

Lucy Jane

15yPublished Oct 10, 2011, 12:16 AMUpdated Oct 10, 2011, 3:03 AM

2.9k

How to Create Unique Constraint

Mukesh Kumar

Mukesh Kumar

15yPublished Jun 24, 2011, 12:00 AMUpdated Jun 24, 2011, 11:03 AM

4.7k

Create Unique Constraint

Mukesh Kumar

Mukesh Kumar

15yPublished Jun 24, 2011, 12:00 AMUpdated Jun 24, 2011, 10:56 AM

6.9k

SQL Server Transact Basic to Expert - Add Unique Constraints to Existing Table

Karthikeyan Anbarasan

Karthikeyan Anbarasan

15yPublished May 10, 2011, 12:00 AMUpdated May 10, 2011, 9:59 PM

3.9k

SQL Server Transact Basic to Expert - Unique Constraints Query

Karthikeyan Anbarasan

Karthikeyan Anbarasan

15yPublished May 10, 2011, 12:00 AMUpdated May 10, 2011, 9:25 AM

3.6k

Enforce a unique constraint on a table with duplicate values

patrick

17yPublished Oct 23, 2009, 11:01 AMUpdated Oct 23, 2009, 11:18 AM

3.8k