[R] Using text put into a dialog box

[RagingJim]

Thanks Greg, the problem is I have no idea how to return and use what I have
typed into the pop up. Add to that the complication that with this query 

x<-sqlQuery(conn, "select to_char(lsd,'yyyy-mm') as yr,ttl_mo_prcp from
mo_rains where stn_num=23090")

if I put anything other than a number into stn_num=... then it does not run.
eg if I just do sn=23090 and then use that in the query

sqlQuery(conn, "select to_char(lsd,'yyyy-mm') as yr,ttl_mo_prcp from
mo_rains where stn_num=sn")

I get the following error.

[1] "[RODBC] ERROR: Could not SQLExecDirect"                              
[2] "42S22 904 [Oracle][ODBC][Ora]ORA-00904: \"SN\": invalid identifier\n"

So my question is in two parts. Firstly, how do I return the number written
in the popup, and then secondly how do I actually put it into the query? 

Thanks again
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