linux特殊符号内置变量

Unfortunately, in the Microsoft SQL world, sometimes you have to deal
with using OPENQUERY.  This is difficult to use sometimes because you
don't have as much flexibility with variables and parameters as you
would using normal T-SQL.  Below is an example of how you can use
OPENQUERY and still utilize a variable or parameter.

DECLARE @variable VARCHAR(10)

DECLARE @sqlQuery VARCHAR(8000)

DECLARE @finalQuery VARCHAR(8000)

SET @variable = 'yourStringValue'

SET @sqlQuery = 'SELECT * FROM tableName WHERE strValue = ' + '''' + '''' + @variable + '''' + ''''

SET @finalQuery = 'SELECT * FROM OPENQUERY(LINKEDSERVER,' + '''' + @sqlQuery + '''' + ')'

--used for debugging

SELECT @finalQuery

EXEC(@finalQuery)

NOTE: It may be hard to see but the '''' is 4 single quotes

I recommend commenting out EXEC(@finalQuery) until you see @finalQuery
correctly in the results.  Running SELECT @finalQuery is very helpful
because you can see what single quotes are missing if need be. 

I also recommend getting your OPENQUERY statement to work correctly
before trying to make it "dynamic" so to say using the above method.

Anyway, I found this very useful to use and hope that it can help some others out there.