Hello Experts, how can I use variables in the RODBC environment. Example which does not work: Thanks for your help. Thorsten pn <- '39R5238'; library(RODBC); odbcobj <- odbcConnect("SQUIT21C",uid="muehge",pwd="xxx"); sql <- "select u.unitid, from test where part in ('pn') "; parameter <- sqlQuery(odbcobj,sql); odbcClose(odbcobj);