"OPEN" - Executing the Query of a Cursor in SQL Server

Q

How To Execute the Cursor Queries with "OPEN" Statements in SQL Server Transact-SQL?

✍: FYIcenter.com

A

Once a cursor is declared, you need to execute the query attached to the cursor so that the result set returned from the query can be accessed through the cursor. To execute the cursor query, you should use the OPEN statement as in this format:

OPEN cursor_name;

When you are done with using the result set attached to a cursor, you should close the result set to free up server resources.

The tutorial example below shows you how to open and close a cursor:

USE FyiCenterData;
GO

DECLARE fyi_cursor CURSOR FOR
  SELECT * FROM fyi_links;
OPEN fyi_cursor;
-- result set is ready to use

-- other statements

CLOSE fyi_cursor;
DEALLOCATE fyi_cursor;
GO

⇒ "FETCH" - Fetching the Next Row from a Cursor in SQL Server

⇐ "DECLARE ... CURSOR" - Declaring Cursor Objects in SQL Server

⇑ Using Cursors in SQL Server Transact-SQL

⇑⇑ SQL Server Transact-SQL Tutorials

2016-10-17, 2453🔥, 0💬

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Declaring and Using Cursor Variables in SQL Server
How To Declare and Use Cursor Variables in SQL Server Transact-SQL? There are two ways to representing a cursor: 1. A cursor name - A static name representing a cursor object. A cursor name should be linked to a cursor object in the DECLARE statement. 2. A cursor variable name - A variable name poin... 2016-10-17, 2769🔥, 0💬

What Are Cursors in SQL Server
What Are Cursors in SQL Server Transact-SQL? A cursor is a special data type that represents a result set returned by a SELECT query statement. There are several notes about cursor you need to remember: Cursor data type can not be used to define table columns. Cursor data type is used on store proce... 2016-10-17, 2685🔥, 0💬

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"FETCH" - Transferring Data from Cursors to Variables in SQL Server
How To Transfer Data from a Cursor to Variables with a "FETCH" Statement in SQL Server Transact-SQL? By default, a FETCH statement will display the fetched row on the client program window. If you want to transfer the output data to variables, you can specify an INTO clause with a list of variables ... 2016-10-17, 2491🔥, 0💬

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