How to stop a running query?

Question

I use RODBC to send queries to an SQL-Server. Sometimes they take too much time to run, so I need to cancel them.

Clicking the red \"stop\" button in RStudio yields this

Answer 1

try to set your connection prior to query:

sql = odbcConnect('Database name')

Then use same line to run your query:

mydf <- sqlQuery(sql, " myquery ")

Note: The running time is dependant on both database and R server but setting up the connection this way should resolve termination problem.