Escape sequence for $ (dollar sign) in T-sql scrip

问题:

I am running a T-SQL script, called from a powershell script, that contains a text row which includes a sequence containing $(MV).

When I run the script I get the error "'MV' scripting variable not defined." which I assume is because it interpretates the $(MV) string as a variable instead of being a part of the text string.

How can I write the dollar sign as an escape sequence? Is that possible in a string?

回答1:

You can use the backtick character to escape a $ sign in PowerShell:

`$

回答2:

Are you executing the script with sqlcmd? It will interpret $(variablename) and try to expand it.

You can disable this using the -x command-line option.

Oh, if you're using Invoke-Sqlcmd you can use the -DisableVariables parameter.

I was assuming you didn't want to have the sqlcmd variable substitution done. If you were just trying to get the $ past Powershell, use the back-tick (`$) as in another suggestion.