Who has to add the right indexes to an SQL database?

Database indexes must fit to the queries. Therefore, it has to be done by those writing the queries.

SQL Server and Azure SQL index architecture and design guide

Ascending is the default and maintains compatibility with earlier versions of the Database Engine. The syntax of the CREATE INDEX , CREATE TABLE ...

How to choose a table index for your SQL database - Medium

Make a list of all the queries your application is making to the particular table, and figure out which column is the most commonly used WHERE ...

Indexing Essentials in SQL - Atlassian

Adding an index will increase how long it takes your database to fully update after a write operation. If adding an index does not decrease ...

3 basic rules for choosing indexes - CockroachDB

There are a few basic rules to keep in mind when choosing indexes for a database. A good index should have these three properties: ...

Index in SQL: Everything You Need to Know About It - Simplilearn.com

Since SQL indexes are primarily a performance tool, they are most useful when a database grows in size. The clustered index is one of the most ...

SQL index overview and strategy - SQLShack

A SQL index is used to retrieve data from a database very fast. Indexing a table or view is, without a doubt, one of the best ways to ...

Is adding indexes to a SQL Server ever a bad idea? - Stack Overflow

There is such a thing as over-indexing, especially in INSERT and UPDATE heavy applications with very large tables.

SQL CREATE INDEX Statement - W3Schools

The CREATE INDEX statement is used to create indexes in tables. Indexes are used to retrieve data from the database more quickly than otherwise.

Considerations for Adding Indexes to a SQL Server Database

Typically a best practice touted by Kim Tripp who is an excellent authority on SQL Server Indexes is to make a covering index that covers your ...

CREATE INDEX (Transact-SQL) - SQL Server - Microsoft Learn

For indexed views, nonclustered indexes can be created only on a view that has a unique clustered index already defined. If not otherwise ...

Top 10 Steps to Building Useful Database Indexes

Designing an appropriate set of indexes can be one of the more troubling aspects of developing efficient relational database applications.

What repercussions are there to creating an index on a SQL ... - Reddit

You create an index on a table; you don't create an index on a SQL database. A database can have zero, one, or (very!) many tables. This is ...

The Basics of Database Indexes For Relational Databases - Medium

The downside is that indexes make it slower to add rows or make updates to existing rows for that table. So adding indexes can increase read ...

Top five considerations for SQL Server index design - SQLShack

An important point to consider after selecting the proper columns to be involved in the index key is the order of the columns in the index key, ...

sql server - How to determine if an Index is required or necessary

Clustered Indexes are good - normally these are based on your primary key. They help the database engine put the data on the disk in good order.

How does SQL Indexes work? What do they do? - Reddit

Finding the right balance between the number of indexes and their addition helps speed up the process of adding new data to the database.

SQL indexing best practices | How to make your database FASTER!

Learn about best practices for using indexes in SQL, and how they can be used to speed up your queries, make your database faster, ...

How to Implement and Use Database Indexes - Progress Software

By using an index on the emp_id field, however, the server can quickly find those rows. Indexes may improve the performance of SQL statements.

SQL Server Indexes | MSSQL Tutorial - Hasura

An index in a table improves the query performance by speeding up the data lookup. By default, a query analyzer does a sequential scan on every row in a table.