SQLCMD using batch variable in query

问题

If I'm using sqlcmd in a batch script, can I reference a batch variable inside the query?

So that if I do something like

for /f "delims= " %%a in ('sqlcmd -S SERVER -d DATABASE -Q 
    "SELECT Column1 FROM Table1 WHERE Column1=[specific number]"') do set var1=%%a

how could I do something like this?:

for /f "delims= " %%b in ('sqlcmd -S SERVER -d DATABASE -Q
    "SELECT Column2 FROM Table1 WHERE Column2=[var1]"' do set var2=%%b

So that the WHERE condition in the second sqlcmd statement is using the variable set in the first statement?

回答1:

Change Column2=[var1] to Column2=%var1%

回答2:

You can pass arguments from the environment to sqlcmd by using the -v switch and referencing the parameters in your sql statement by the $(variable) syntax. E.g. in your second statement :

for /f "delims= " %%b in ('sqlcmd -S SERVER -d DATABASE -Q
    "SELECT Column2 FROM Table1 WHERE Column2=$(var1)" -v var1=%var1%' do set var2=%%b

来源：https://stackoverflow.com/questions/32227390/sqlcmd-using-batch-variable-in-query