Unable to append to SQL Server table using sqlSave in R

Question

I am trying to update a SQL table using sqlSave function of RODBC package in R. Data is present in a data frame. When I try to run the command:

sqlSave(DBCon         


        

Answer 1

There is a possibility of data types and Column names being a problem. So It's best to obtain the datatypes and column names of the table and assign them to the data frame.

ColumnsOfTable       <- sqlColumns(conn, tablename)
varTypes             <- as.character(ColumnsOfTable$TYPE_NAME) 
names(varTypes)      <- as.character(ColumnsOfTable$COLUMN_NAME) 
colnames(dataObject) <- as.character(ColumnsOfTable$COLUMN_NAME)

sqlSave(conn, dataObject, tableNames, fast=TRUE,append=TRUE,  rownames=FALSE, varTypes=varTypes )