How Can I Avoid Cursors When Calling Stored Procedures in SQL?

Alternative to Using Cursors for Stored Procedure Invocation in SQL

Instead of employing a cursor, consider a set-based approach for executing a stored procedure for each row in a table. This offers performance advantages while eliminating the need for cursors.

In some scenarios, however, cursors remain unavoidable. For such cases, the following snippet provides a viable solution:

-- Declare & initialize variables (SQL Server 2008 syntax)
DECLARE @CustomerID INT = 0

-- Iterate through customers
WHILE (1 = 1) 
BEGIN  

  -- Retrieve customer ID
  SELECT TOP 1 @CustomerID = CustomerID
  FROM Sales.Customer
  WHERE CustomerID > @CustomerId 
  ORDER BY CustomerID

  -- Exit loop if all customers have been processed
  IF @@ROWCOUNT = 0 BREAK;

  -- Invoke stored procedure
  EXEC dbo.YOURSPROC @CustomerId

END

This snippet iterates through customers based on their customer ID, ensuring that each customer's data is passed as parameters to the YOURSPROC stored procedure.

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