Connect to Database   pymssql  DBNAME  UNAME  PWD  PORTNO
${QueryResult}= Query SelectQuery
Log  ${QueryResult[0]}
Inputtext  id  ${QueryResult[0]}

Log  ${QueryResult[0]}
# the output is
#  (Decimal('2'),)
# e.g. "a single row, that has only one column" - just one tuple member

${value}=    Set Variable    ${QueryResult[0][0]}
# if you run Log on it, the output most probably looks like this:
#   Decimal('2')

${value}=    Convert To String    ${value}    # now it's no longer Decimal, but plain str type
Input Text   id    ${value}

${result}    Query    ${query_string}
${first}    Set Variable    ${result[0][0]}