a question about Exec

Hi,

When I run the following command on sql server:

exec ('print "OK"')
go

This message appears:

Server: Msg 128, Level 15, State 1, Line 1
The name 'OK' is not permitted in this context. Only constants,
expressions, or variables allowed here. Column names are not permitted.

Why? Thanks.findu_2005@.yahoo.com (findu_2005@.yahoo.com) writes:

Quote:

Originally Posted by

When I run the following command on sql server:
>
exec ('print "OK"')
go
>
This message appears:
>
Server: Msg 128, Level 15, State 1, Line 1
The name 'OK' is not permitted in this context. Only constants,
expressions, or variables allowed here. Column names are not permitted.
>
Why? Thanks.

Because when the setting QUOTED_IDENTIFIER is in effect, "" delmits
identifier. This permits you to use table names like Order Details, for
instance:

SELECT ... FROM "Order Details"

In the SQL Server world, we tend to use [] for this function, but "" is
what ANSI mandates.

QUOTED_IDENTIFIER is on by default in most contexts, but not when you
run from SQLCMD, OSQL or Enterprise Manager in SQL 2000. Or for that
matter all DB-Library applications.

When the setting is off, SQL Server reverts to the original behaviour
from 4.x days when you couls use both '' and "" to delimit strings.

--
Erland Sommarskog, SQL Server MVP, esquel@.sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pr...oads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodin...ions/books.mspx|||Something like this will work

exec ('print ''OK''') . *Note: all are single quotes.

or you'll have to use SET QUOTED_IDENTIFIER OFF and then execute the
SQL.

Regards,
Thyagu.