How to execute sqlcmd from powershell?

Question

I have a string in powershell, which contains a native sqlcmd command. The command itself can be executed successfully in cmd.exe. I have difficulty in executing them in pow

Answer 1

Both instance name and username should be fully qualified

<domain_name>\Instanc_name and <domai_name>\Username. Only your instance name is correctly scripted.

Answer 2

Use Invoke-Expression rather than Invoke-Command

Answer 3

This is what worked for me for using sqlcmd from within the powershell script using the & operator, see sample to generate a csv file:

& cmd /c "sqlcmd -S $sv -i $PROCFILE -s, -v varDB = $dbclean -o $filename"

$sv has server name like SERVERNAME\INSTANCE

$PROCFILE is like d:\TSTSQL\Sqlquery.SQL

$filename is d:\TSTSQL\Desiredoutfilename.CSV

$dbclean is a parameter passed to the sql file

Answer 4

This is how I build some externals command in my scripts

$scriptblock = {fullpath\sqlcmd -S `"(local)\instance1`" <# comment option -S #>`
                                -U a `
                                -P a `
                                -i `"c:\temp\sql.sql`" }
Invoke-Command -ScriptBlock $scriptBlock

You can then use $args variable inside it and even start it remotly.

$scriptblock = {fullpath\sqlcmd -S `"(local)\instance1`" <# comment option -S #>`
                                -U a `
                                -P a `
                                -i `"$($args[0])`" }
Invoke-Command -ScriptBlock $scriptBlock -argumentList "c:\temp\sql.sql" -computer "remote1"

Remark :

This allow to comment each param.

Be careful not to forget a "`" and no space after them where they are at the end of the line.

Answer 5

To call a Win32 executable you want to use the call operator & like this:

& sqlcmd -S "(local)\instance1" -U a -P a -i "c:\temp\sql.sql"

Answer 6

The first positional parameter of invoke-command is -scriptblock, and it expects a script block argument. To take advantage of a here-string to build the command and then run it with invoke-command, you need to convert the here-string to a script block:

$sql = @"
sqlcmd -S "(local)\instance1" -U a -P a -i "c:\temp\sql.sql"
 "@

 Invoke-Command ([scriptblock]::create($sql))