Beginning Microsoft SQL Server 2008 ... - S3 Tech Training

Chapter 11: Writing Scripts and Batches
If we add a column to our TestTable table in our Test database and then try to reference that column
without ending the first batch:
USE Test;
ALTER TABLE TestTable
ADD col3 int;
INSERT INTO TestTable
(col1, col2, col3)
VALUES
(1,1,1);
we get an error message — SQL Server cannot resolve the new column name, and therefore complains:
Msg 207, Level 16, State 1, Line 6
Invalid column name ‘col3’.
Add one simple GO statement after the ADD col3 int, however, and everything is working fine:
(1 row(s) affected)
sqlcmd
340
sqlcmd is a utility that allows you to run scripts from a command prompt in a Windows command box.
This can be very nice for executing conversion or maintenance scripts, as well as a quick and dirty way
to capture a text file.
sqlcmd replaces the older osql. osql is still included with SQL Server for backward compatibility only.
An even older command-line utility — isql — is no longer supported.
The syntax for running sqlcmd from the command line includes a large number of different switches,
and looks like this:
sqlcmd
[ { { -U [ -P ] } | –E } ]
[ -z ] [ -Z and exit]
[-S [ \ ] ] [ -H ] [ -d ]
[ -l ] [ -t ] [ -h ]
[ -s ] [ -w ] [ -a ]
[ -e ] [ -I ]
[ -c ] [ -L [ c ] ] [ -q “” ] [ -Q “” ]
[ -m ] [ -V ] [ -W ] [ -u ] [ -r [ 0 | 1 ] ]
[ -i ] [ -o ]
[ -f | i: [