Sql Server ':setvar' Error
The :setvar error typically pops up when there's a hiccup in defining or invoking variables in SQLCMD mode. Put simply:
- Confirm you have the SQLCMD mode on.
- Declare variables the right way, i.e.,
:setvar name "value". - Call back your declared variables using the
$(name)format.
Let's see it in action:
Remember rule number 1: :setvar to declare, $() to refer. Anything else, and the system goes 'Nope!'.
Debugging the Devil
Got your syntax upside down? Got :setvar acting all up? Here are three things to keep an eye on:
- Syntax: Be super sure about the colon (':' character) in your line. Trust me, it's the tiny bugs that bite the hardest.
- Version support:
:setvaracts pricey with older SQL Server versions. Might need to flirt with alternatives here. - ANSI Settings: Check for any conflict with your ANSI settings and the
:setvar. You don't want a Civil war now, do you?
Baby Steps with :setvar
Before you dive head-first into the deep end of SQLCMD scripts, let's start small. Whip up a basic variable to verify the setup. Only then, add the bells and whistles.
Plan B: Alternatives to :setvar
Not a fan of SQLCMD mode? No problem. Swap :setvar for the good old DECLARE and SET combo. Here's the new script with the swap:
Remember: SQLCMD mode on when you need more powertools.
Activating SQLCMD mode: A Guide
Getting the SQLCMD mode on is simpler than you think:
- In SSMS, go to the "Query" menu.
- Fish for "SQLCMD Mode" and give it a click.
- Hey, remember to restart the query window by hitting "New Query".
Here's a Barbie-sized tutorial for some visual aid.
Context VS :setvar
:setvar isn't playing dress-up as USE. They're both doing different gigs. While :setvar puts on a show with variable-setting in SQLCMD, USE simply switches databases like a DJ with tracks.
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