primary-key – CodeRavo

Retrieving Primary Keys in SQL Server

In relational databases, primary keys play a crucial role in uniquely identifying each record within a … Retrieving Primary Keys in SQL ServerRead more

Database Management, information-schema-key-column-usage, primary-key, SQL Server, sys-indexes

Understanding Primary and Unique Keys in Database Design

In database design, keys play a crucial role in ensuring data integrity and uniqueness. Two types … Understanding Primary and Unique Keys in Database DesignRead more

data integrity, database-design, indexing, nullability, primary-key, unique-key

Auto-Incrementing Columns in PostgreSQL

In relational databases like PostgreSQL, auto-incrementing columns are used to automatically assign a unique identifier to … Auto-Incrementing Columns in PostgreSQLRead more

auto-incrementing, database-design, identity-columns, PostgreSQL, primary-key, sequences, serial

Auto-Incrementing Primary Keys in PostgreSQL

PostgreSQL offers robust mechanisms for automatically generating unique identifiers, commonly used for primary keys. This tutorial … Auto-Incrementing Primary Keys in PostgreSQLRead more

auto-increment, database, identity, PostgreSQL, primary-key, sequence, serial, SQL

Adding an Auto-Increment Primary Key to an Existing SQL Server Table

Introduction When working with databases, maintaining unique identifiers for records is crucial. Often, tables are created … Adding an Auto-Increment Primary Key to an Existing SQL Server TableRead more

auto-increment, database-design, identity-column, primary-key, SQL Server

Setting Initial Value and Auto-Increment in MySQL: A Step-by-Step Guide

Introduction In database management, particularly when using MySQL, auto-incrementing primary keys are essential for uniquely identifying … Setting Initial Value and Auto-Increment in MySQL: A Step-by-Step GuideRead more

alter table, auto-increment, Create Table, Database Management, MySQL, primary-key, unique-identifier

Retrieving Inserted Identity Values in SQL Server

Retrieving Inserted Identity Values in SQL Server When inserting data into a SQL Server table with … Retrieving Inserted Identity Values in SQL ServerRead more

auto-increment, database, ident-current, identity, identity-column, insert, output-clause, primary-key, retrieving-identity, scope-identity, SQL Server, transactions

Modifying Primary Keys in Existing SQL Tables

Modifying Primary Keys in Existing SQL Tables Primary keys are fundamental to relational database design, ensuring … Modifying Primary Keys in Existing SQL TablesRead more

alter table, constraint, data integrity, database, primary-key, schema-modification, SQL

Generating Universally Unique Identifiers in PostgreSQL

In this tutorial, we will cover the basics of generating universally unique identifiers (UUIDs) in PostgreSQL. … Generating Universally Unique Identifiers in PostgreSQLRead more

gen-random-uuid-function, pgcrypto-module, PostgreSQL, primary-key, universally-unique-identifier, uuid, uuid-ossp-extension

Understanding and Resolving SQL Foreign Key Constraint Errors

Introduction When working with relational databases, foreign key constraints play a crucial role in maintaining referential … Understanding and Resolving SQL Foreign Key Constraint ErrorsRead more

child-table, data integrity, foreign-key-constraint, parent-table, primary-key, relational databases, SQL Server