Issue with RobotFramework Connect To Database Using Custom Params - sql-server

Question

Getting Below Error
OperationalError: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied. (17) (SQLDriverConnect); [08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionOpen (Connect()). (53)'
*** Settings ***
Documentation Simple example using DBLibrary.
Library SeleniumLibrary
Library DatabaseLibrary
*** Variables ***
${DBHost_ConnectionString} 'DRIVER={SQL Server};SERVER="hostname";UID="uname";PWD="******";DATABASE="dbname"'
*** Test Cases ***
Connect Database
Connect To Database Using Custom Params pyodbc ${DBHost_ConnectionString}
I tried all the solutions over internet, like adding port to connection string, appending tcp before servername, e.t.c,
Followed the implementation mentioned in the source code of dbapi
https://github.com/franz-see/Robotframework-Database-Library/blob/master/src/DatabaseLibrary/connection_manager.py
elif dbapiModuleName in ["pyodbc", "pypyodbc"]:
dbPort = dbPort or 1433
logger.info('Connecting using : %s.connect(DRIVER={SQL Server};SERVER=%s,%s;DATABASE=%s;UID=%s;PWD=%s)' % (dbapiModuleName, dbHost, dbPort, dbName, dbUsername, dbPassword))
self._dbconnection = db_api_2.connect('DRIVER={SQL Server};SERVER=%s,%s;DATABASE=%s;UID=%s;PWD=%s' % (dbHost, dbPort, dbName, dbUsername, dbPassword))
Any help should be appreciated.

Answer 1

As a guess, you shouldn't surround your connection string with single quotes, as they become part of the connection string. Robot is not python, and robot is not the shell, so you don't normally need to quote strings.
*** Variables ***
${DBHost_ConnectionString} DRIVER={SQL Server};SERVER="hostname";UID="uname";PWD="******";DATABASE="dbname"
It's not clear if you're literally using the string hostname and uname, etc., or if that's just boilerplate for the purpose of the question. You need to be passing the actual hostname and actual username and password.
You may not need the quotes around the other values, in which case it would look like this:
*** Variables ***
${DBHost_ConnectionString} DRIVER={SQL Server};SERVER=hostname;UID=uname;PWD=******;DATABASE=dbname