What is indexing in a Database Management System (DBMS)?

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Grade: Education Subject: Ddos
What is indexing in a Database Management System (DBMS)?
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Indexing in a DBMS is a technique used to speed up data retrieval operations on database tables. It's like an index in a book – it allows the database to quickly locate specific rows without having to scan the entire table. An index is a separate data structure (typically a B-tree) that contains a sorted list of values from one or more columns in a table, along with pointers to the corresponding rows.