PostgreSQL Refcursor || Cursors In PostgreSQL || Part 4 Refcursor Cursor || PostgreSQL Refcursor

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Description
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In this video, we will discuss the cursors available in PostgreSQL.
We cover refcursor cursors in this video.

In the fourth installment of our PostgreSQL Cursors series, we dive into the world of Refcursors, a powerful and flexible feature in PostgreSQL that allows for dynamic and complex data retrieval. Unlike regular cursors, Refcursors provide the ability to open a cursor in one function and fetch data from it in another, making them incredibly useful for modular and reusable database operations.

This tutorial begins with an introduction to Refcursors, explaining what they are and how they differ from other types of cursors available in PostgreSQL. We then move on to demonstrate how to declare, open, and use Refcursors within your database procedures, providing step-by-step instructions and practical examples to ensure you understand the concept thoroughly.

We also cover scenarios where Refcursors shine, such as when you need to return a cursor from a function to be used later or in different parts of your application. Additionally, we discuss best practices for using Refcursors efficiently, ensuring that your database operations remain performant and reliable.

Whether you’re managing complex queries or looking to build more modular database functions, this video will equip you with the knowledge needed to effectively utilize Refcursors in PostgreSQL.

PostgreSQL Refcursors, Refcursors in PostgreSQL, PostgreSQL cursors, advanced SQL cursors, using Refcursors PostgreSQL, SQL Refcursor examples, PostgreSQL database management, dynamic data handling, database programming, PostgreSQL tutorial

Using a Refcursor, one can return a set of records or a table of data as output from a function in PostgreSQL.

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[KnowledgeChannel]

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[ranjithmani]

Good content bro no one will teach this in my company real time they are using refcurstor this is helping for my understanding

[kasidurai]

I saw the cursor videos its really good it very informative .I wish there are more complex queries videos.

[shashank]

Nice video bro..but i have a doubt.. lv_ref_cur refcursor its a in parameter ...due to which Java team is unable to call this function through Java
How to call that function by Java any idea?

[kasidurai]

Hi

In the variable you have give as the{ lv_ref_cur refcursor } But while selecting the function you have given as
select * from refcursor_cursor(1, 'lv_refcursor');
fetch all in lv_refcursor; . plz can you explain

[みやっち-pe]

please teach me
how to coding for ECPG, this function?

[HARSTH]

Can't we create a procedure with refcursor function