[R-sig-DB] Microsoft SQL Server Temp Tables and RODBC

[Elliot Bernstein]

I've noticed that RODBC has some issues with MS SQL Server's syntax for temp tables. For example:

> temp <- data.frame(x = 1:10)
> sqlSave(conn, temp, "#rtemp")
Error in sqlColumns(channel, tablename) :
  '#rtemp': table not found on channel
> sqlQuery(conn, "create table #rtemp (x integer)")
[1] "42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named '#rtemp' in the database."
[2] "[RODBC] ERROR: Could not SQLExecDirect 'create table #rtemp (x integer)'"
> sqlSave(conn, temp, "#rtemp", append = TRUE)
Error in sqlSave(conn, temp, "#rtemp", append = TRUE) :
  42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named '#rtemp' in the database.
[RODBC] ERROR: Could not SQLExecDirect 'CREATE TABLE "#rtemp"  ("rownames" varchar(255), "x" int)'
> sqlQuery(conn, "select * from #rtemp")
[1] rownames x
<0 rows> (or 0-length row.names)
> for (i in 1:nrow(temp)) { sqlQuery(conn, sprintf("insert into #rtemp (x) values (%d)", temp$x[i])) }
> sqlQuery(conn, "select * from #rtemp")
   rownames  x
1        NA  1
2        NA  2
3        NA  3
4        NA  4
5        NA  5
6        NA  6
7        NA  7
8        NA  8
9        NA  9
10       NA 10

Is there any way to get functions like 'sqlSave' working?

Thanks.

- Elliot

Elliot Joel Bernstein, Ph.D.
Grantham, Mayo, Van Otterloo & Co. LLC
225 Franklin Street
Boston, MA 02110
Office: 617-880-8972


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