Dec 26, 2021
SQL Primary Key
A Primary key is the field in the table that uniquely identifies each row & record in the database table.A Primary keys must have UNIQUE values, and cannot contain NULL values. The table may contain only one primary key, which may have one or more fields. When multiple fields are used as the primary key, they are called a composite key. Create Primary Key Table CREATE TABLE Students( ID INT NOT…
View On WordPress
#composite primary key#dbms primary key#mysql primary key#primary#primary key#primary key and foreign key#primary key and unique key#primary key constraint#primary key example#primary key in database#primary key in dbms#primary key in sql#primary key mysql#primary keys#sql add primary key#sql primary key#sql primary key and foreign key#sql primary key constraint#sql primary keys#use primary key#what is primary key#ما هو primary key