Indexes & cursors in Sql.

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Accepted Answer

Indexes and cursors are used in SQL to improve query performance and manage result sets.

Indexes are used to quickly locate data without having to search the entire table. They can be created on columns to speed up search operations.
Cursors are used to retrieve and manipulate data row by row. They can be used to iterate through a result set and perform operations on each row.
Indexes are used for faster data retrieval, while cursors are used for row-level operations.
Example: Creating an index on a 'user_id' column in a 'users' table can speed up queries that filter by user ID.
Example: Using a cursor to loop through a result set and update each row based on certain conditions.

Indexes &amp; cursors in Sql.