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What are MySQL cursors? What are its main properties?

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Aug 22, 2023 pm 01:17 PM

What are MySQL cursors? What are its main properties?

In computer science and technology, a database cursor is a control structure that makes it possible to traverse records in a database. Cursors in MySQL are almost the same as cursors in other databases. MySQL cursor is a looping tool used to iterate over SQL results one by one. We can use MySQL cursors to operate on each result. Cursors are only supported in stored procedures, functions, and triggers. MySQL cursors are available starting with version 5 or higher. Following are the three main properties of MySQL cursors:

Read-only

By using MySQL cursors, we cannot update any table.

NON-Scrollable

MySQL cursors always fetch rows sequentially from top to bottom. In other words, we cannot get the rows in reverse order, nor can we skip rows or jump to a specific row in the result set.

Sensitive

MySQL cursors are sensitive, that is, copies of the table cannot be created. It is faster than another type of cursor, the insensitive cursor.

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