Declaring and using an UPDATE CURSOR with SQL SERVER

In databases like Oracle or Sybase, if you have multiple records returned
from a query and want to update them, you declare an update cursor.
While I have read the "Help" files available in Enterprise, I have not
figured out the syntax for declaring and using an UPDATE CURSOR.
The query I am running is like this:
UPDATE A
SET A.Field1 = (SELECT B.Field1
FROM B INNER JOIN A ON A.id = B.id)
The tables have a many to one relationship on id.
I do not know if when I declare the cursor, if I put the whole update
statement in it... I do not know if when I use an update cursor, I have to
fetch next... And beyond that, if I do get the syntax and put it into a
stored procedure, how do I execute the query from within Enterprise Manager
(I am not writing code to call the procedure, I just want to execute it
against the table. I would execute it by just creating a query, but the
cursor format is not recognized in the query pane.)
I am completely new to SQL Server but not to databases.
What I am looking for is just a simple example of declaring and using an
UPDATE CURSOR.
Any help you can provide would be appreciated. Thanks!Hi
you can use somewhat this
Update
Set A.Field1 = B.Field
From
Where A.id = B.i
This statement this convert to UPDATE CURSOR in Oracle
Hermilson Tinoco.|||The simple syntax for declaring a cursor which allows updates is doc'd in
SQL books online , search for "Declare cursor", but it looks like
declare mycur Cursor for <Select statement> for update
you can then open it, fetch rows, and update table set col = value where
current of mycur
Generally in SQL, we try to avoid cursors and use relational update
statements whenever possible, because cursors (generally) do not perform as
well.
hope this helps.
"Carol Berry" <carol@.123marbella.com> wrote in message
news:OAGSMlx6DHA.2404@.TK2MSFTNGP11.phx.gbl...
> In databases like Oracle or Sybase, if you have multiple records returned
> from a query and want to update them, you declare an update cursor.
> While I have read the "Help" files available in Enterprise, I have not
> figured out the syntax for declaring and using an UPDATE CURSOR.
> The query I am running is like this:
> UPDATE A
> SET A.Field1 => (SELECT B.Field1
> FROM B INNER JOIN A ON A.id = B.id)
> The tables have a many to one relationship on id.
> I do not know if when I declare the cursor, if I put the whole update
> statement in it... I do not know if when I use an update cursor, I have
to
> fetch next... And beyond that, if I do get the syntax and put it into a
> stored procedure, how do I execute the query from within Enterprise
Manager
> (I am not writing code to call the procedure, I just want to execute it
> against the table. I would execute it by just creating a query, but the
> cursor format is not recognized in the query pane.)
> I am completely new to SQL Server but not to databases.
> What I am looking for is just a simple example of declaring and using an
> UPDATE CURSOR.
> Any help you can provide would be appreciated. Thanks!
>