• SQL UNIQUE Constraint

    w3schools.comsql/sql_unique.asp
    The following SQL creates a UNIQUE constraint on the "ID" column when the "Persons" table is created ... To drop a UNIQUE constraint, use the following SQL

  • Understanding Unique Keys and Indexes in SQL... | Medium

    medium.com@datasciencenexus/understanding-unique…
    In this comprehensive guide, we’ll explore the concept of unique keys, their implementation through SQL constraints, and their relationship with indexes.

  • SQL Unique Nedir? Oluşturma ve Kullanımı - Yusuf SEZER

    yusufsezer.com.trSQL ServerVeritabanı
    Yazıda SQL Unique nedir ile UNIQUE Constraint key anlatılmış MySQL, SQL Server, Oracle vb. sistemler için SQL ile unique oluşturma ve kullanımı ile ilgili...

  • SQL UNIQUE Nedir? Kullanımı Nasıldır? Örneklerle Anlatım

    atakdomain.comblog/sql-unique-nedir-kullanimi-…
    Aşağıdaki SQL “Kisiler” tablosunda “ID” sütununda bir UNIQUE kısıtlaması oluşturur.

  • Create a Unique Index - SQL Server | Microsoft Learn

    learn.microsoft.comen-us/sql/relational-…
    This topic describes how to create a unique index on a table in SQL Server by using SQL Server Management Studio or Transact-SQL.

  • What Is a Unique Constraint in SQL? | LearnSQL.com

    learnsql.comblog/unique-constraint-in-sql/
    The UNIQUE constraint is one of many SQL constraints that can be defined for a column.

  • SQL UNIQUE Constraint: Enforce Uniqueness of Values

    sqltutorial.orgsql-unique-constraint/
    By definition, an SQL UNIQUE constraint defines a rule that prevents duplicate values stored in specific columns that do not participate a primary key.

  • Görsel

  • Ravesli | Constraint Unique Sql

    ravesli.comconstraint-unique-sql/
    (college_id INT NOT NULL UNIQUE, college_code VARCHAR(20) UNIQUE

  • SQL UNIQUE Constraint (With Examples)

    programiz.comsql/unique
    In SQL, the UNIQUE constraint in a column means the column must have unique values.

  • UNIQUE KEY in SQL

    almabetter.combytes/tutorials/sql/unique-key-in-…
    The UNIQUE Key in SQL was a great success and allowed the company to increase the participation in its loyalty program.