RODBC sqlSave table creation problems

Question

I\'m having trouble creating a table using RODBC\'s sqlSave (or, more accurately, writing data to the created table).

This is different than the existing sqlSave qu

Answer 1

Here are a few rules of thumb:

1. If things aren't working out, then manually specify the column types just as @d84_n1nj4 suggested.

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columnTypes <- list(Record = "VARCHAR(10)", Case_Number = "VARCHAR(15)", Claim_Type = "VARCHAR(15)", Block_Date = "datetime", Claim_Processed_Date = "datetime", Status ="VARCHAR(100)")

sqlSave(myconn2, MainClmDF2, tablename = "##R_Claims_Data", verbose=TRUE, rownames= FALSE, varTypes=columnTypes)

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2. If #1 doesn't work, then continue to specify the columns, but specify them all as VARCHAR(255). Treat this as a temp or staging table, and move the data over with sqlQuery with your next step, just as @danas.zuokas suggested. This should work, but even if it doesn't, it gets you closer to the metal and puts you in better position to debug the problem with SQL Server Profiler if you need it. <- And yes, if you still have a problem, it's likely due to either a parsing error or type conversion.

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columnTypes <- list(Record = "VARCHAR(255)", Case_Number = "VARCHAR(255)", Claim_Type = "VARCHAR(255)", Block_Date = "VARCHAR(255)", Claim_Processed_Date = "VARCHAR(255)", Status ="VARCHAR(255)")

sqlSave(myconn2, MainClmDF2, tablename = "##R_Claims_Data", verbose=TRUE, rownames= FALSE, varTypes=columnTypes)

sqlQuery(channel, 'insert into real_table select * from R_Claims_Data')

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3. Due to RODBC's implementation, and not due to any inherent limitation in T-SQL, R's logical type (i.e. [TRUE, FALSE]) will not convert to T-SQL's BIT type (i.e. [1, 0]), so don't try this. Either convert the logical type to [1, 0] in the R layer or take it down to the SQL layer as a VARCHAR(5) and convert it to a BIT in the SQL layer.