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Learn how to create indexes in MySQL tables to speed up data retrieval. See the syntax, examples and differences between CREATE INDEX and CREATE UNIQUE INDEX.
In this tutorial, you will learn about indexes and how to use the MySQL CREATE INDEX statement to add an index to a table.
27 Ιουν 2024 · The MySQL CREATE INDEX statement is a DDL (Data Definition Language) statement used to create indexes on tables. It allows developers to optimize query performance by specifying which columns should be indexed.
Learn how to create indexes on existing tables with CREATE INDEX, including column prefixes, functional key parts, unique indexes, full-text indexes, multi-valued indexes, and spatial indexes. See syntax, options, and examples for different types of indexes.
This section explains what an index is and shows you how to create, modify, and drop an index. Creating indexes – introduce the index concept and show you how to create an index for one or more columns of a table.
4 Ιαν 2023 · Learn what indexes are, how to create them, and how they can improve the performance of SQL queries. Follow the steps to create a sample database and table, and practice using indexes on different columns.
Learn how to create indexes on tables in MySQL databases using the CREATE INDEX statement. Indexes are data structures that help MySQL retrieve data more efficiently, but they also have some trade-offs.
