Solved

SImple curosr appears stuck in infinite loop.

Posted on 2014-12-07
2
135 Views
Last Modified: 2014-12-07
SET NOCOUNT ON;

DECLARE @ssn char(9)
DECLARE @Code char(3)
DECLARE @DateEntered char(9)


Hello, I have a simple table with three columns. The table only has like 6 records in it at this time. All I want to do is to read the contents of the table into a cursor, and then dump out the data. I am running the below script from query analyzer, but it appears to be stuck in an infinite loop. Can someone look at my cursor code, and tell me if it is broken?


PRINT '--------  Report --------';

DECLARE people_cursor CURSOR FOR
SELECT SSN, Code,DateEntered
FROM People
ORDER BY DateEntered;

OPEN people_cursor

FETCH NEXT FROM people_cursor
INTO @ssn, @Code, @DateEntered

WHILE @@FETCH_STATUS = 0
BEGIN

      PRINT @ssn
      PRINT @Code
      PRINT @DateEntered

    CLOSE people_cursor
    DEALLOCATE people_cursor

END
0
Comment
Question by:brgdotnet
2 Comments
 
LVL 69

Accepted Solution

by:
Éric Moreau earned 500 total points
ID: 40485539
I see at least 2 issues:
-close/deallocate goes outside the loop
-you are not refetching the next row in the loop

DECLARE people_cursor CURSOR FOR 
SELECT SSN, Code,DateEntered
FROM People
ORDER BY DateEntered;

OPEN people_cursor

FETCH NEXT FROM people_cursor 
INTO @ssn, @Code, @DateEntered

WHILE @@FETCH_STATUS = 0
BEGIN

      PRINT @ssn
      PRINT @Code
      PRINT @DateEntered

     FETCH NEXT FROM people_cursor 
     INTO @ssn, @Code, @DateEntered

END

    CLOSE people_cursor
    DEALLOCATE people_cursor

Open in new window

0
 
LVL 2

Author Closing Comment

by:brgdotnet
ID: 40485551
Thank you Eric,

I am just now learning about cursors.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
I have a large data set and a SSIS package. How can I load this file in multi threading?
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

24 Experts available now in Live!

Get 1:1 Help Now