I'm trying to connect R with an MS Access database on a Windows 7 64bit machine.
library(RODBC)
con <- odbcConnectAccess2007("M:/path/to/mydatabase/my.database.accdb")
# [RODBC] ERROR: state IM002, code 0, message [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specifiedODBC connection failed
I've also tried package odbc using connection strings specified at https://www.connectionstrings.com/access/ but similarly cannot connect
library(DBI)
con <- dbConnect(drv = odbc::odbc(), dsn = "Microsoft Access Driver", driver = "Microsoft Access Driver (*.mdb, *.accdb)", database = "M:/path/to/mydatabase/my.database.accdb")
# Error: nanodbc/nanodbc.cpp:950: IM002: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
What am I doing wrong?
You can use my AceOdbcCheck script to test your machine for a valid install of Access "ACE" ODBC. If you don't have it installed you can download the drivers here.
Note that the "bitness" (64-bit or 32-bit) of the Access ODBC driver must match the version of R you are running. That is, if you are running 32-bit R then you need the 32-bit drivers even though you are running 64-bit Windows.
Related
I am trying to run some queries in Oracle SQL through R using RODBC but it doesn't work, not matter what I try.
I installed the "basic", "sqlplus", "odbc" and "sdk" packages from Oracle (yes, I know sdk and sqlplus aren't strictly needed), did all the path settings needed, copied libodbcinst.2.dylib to the instant client folder, installed the odbc driver in odbcinst.ini, tried changing dynlib locations through install_name_tool, even tried adding "arch -x86_64" before the driver name on odbcinst.ini - all to no avail.
I am using a MacBook Air M1, macOS Monterey 12.3.1, unixodbc installed on opt/homebrew from homebrew...
The connection string is:
sqlDriver <- 'Oracle 19 ODBC driver'
connectionStringSQL <- paste0(
"Driver=", sqlDriver,
";Server=", sqlServer,
";Database=", sqlDatabase,
";Uid=", sqlUser,
";Pwd=", sqlPassword,
";Encrypt=yes",
";Port=1521")
conn <- odbcDriverConnect(connectionStringSQL)
But I don't think the connection string matters, because the error I get is:
Warning messages:
1: In odbcDriverConnect(connectionStringSQL) :
[RODBC] ERROR: state 01000, code 0, message [unixODBC][Driver Manager]Can't open lib 'arch -x86_64 /Users/*****/instantclient/libsqora.dylib.19.1' : file not found
2: In odbcDriverConnect(connectionStringSQL) : ODBC connection failed
Running into an issue between using the DSN versus non DSN with the R package ODBC.
Using the DSN, I am successfully able to make a connection to the server and away the code goes. However, using the non DSN odbc connection string, I am receiving:
Error: nanodbc/nanodbc.cpp:950: IM002: [Microsoft][ODBC Driver Manager] Data >source name not found and no default driver specified
The connection appears to be syntactically correct and all of the required fields are populated according to multiple function documentations, including: https://support.rstudio.com/hc/en-us/articles/214510788-Setting-up-R-to-connect-to-SQL-Server-
odbc_con <- dbConnect(odbc::odbc(),
Driver = "SQLServer",
Server = server,
Database = test,
Uid = 'username',
Pwd = 'password',
Port = 1433)
Both server and test are defined earlier in the code.
I have tried removing the odbc:: and just using odbc().
Using semi-colons, removing caps.
Bit stuck, any suggestions?
When I switched from a Linux to a Windows box for R (note nothing else changed) I was getting
"Error: nanodbc/nanodbc.cpp:950: IM002: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified"
The ODBC connection issue was fixed by changing
Driver = "ODBC Driver 17 for SQL Server"
to
Driver = "SQL Server"
Hope this saves you some time.
I want to connnect to Oracle with R. I use RODBC package for this connection. Following is my code to connect
library(RODBC)
con <- odbcDriverConnect("Driver={Microsoft ODBC for Oracle};
CONNECTSTRING=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=123)(PORT=1521))(CONNECT_DATA=(SID=abc)));
uid=abc; pwd=abc;")
But I get the following error
1:
[RODBC] ERROR: state IM002, code 0, message [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
2:
ODBC connection failed
It's really strange, because I use direct connection, it doesn't require no TSN nor DSN. Also I succesfully connect to Oracle with the same Hostname, Port, SID, Username and password, using Oracle SQL Developer.
I am trying to access my Access database using R. I have tried the below options but I am not able to connect to the database. I am using 64 bit R and 64 bit Access. I am using windows 7 also.. :(
library(RODBC)
db <- "E:/testdb.accdb"
myconn <-odbcDriverConnect("Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=E:/test.accdb")
con2 <- odbcConnect(db)
channel <- odbcConnectAccess("E:/testdb")
I always get the error. Please help me.
1: In odbcDriverConnect("DSN=E:/testdb.accdb") :
[RODBC] ERROR: state IM002, code 0, message [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
2: In odbcDriverConnect("DSN=E:/testdb.accdb") : ODBC connection failed
I think the problem is as error message suggests - you don't have x64 Microsoft Access driver installed. Check it in Control panel - ODBC Data Sources (x64) on the Drivers tab. If it's not there, try to install Microsoft Access Database Engine 2010 Redistributable.
This is my first time connecting to Vertica. I have already connected to a MySQL database sucessfully by using RODBC library.
I have the database setup in vertica and I installed the windows 64-bit ODBC driver from https://my.vertica.com/download-community-edition/
When I tried to connect to vertica using R, I get the below error:
channel = odbcDriverConnect(connection = "Server=myserver.edu;Database=mydb;User=mydb;Password=password")
Warning messages:
1: In odbcDriverConnect(connection = "Server=myserver.edu;Database=mydb;User=mydb;Password=password") :
[RODBC] ERROR: state IM002, code 0, message [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
2: In odbcDriverConnect(connection = "Server=myserver.edu;Database=mydb;User=mydb;Password=password") :
ODBC connection failed
Can someone tell me how to fix this? Or is there any other ways to connect to vertica using R?
It may not be the fastest, but I prefer to use the Vertica JDBC driver from R. Getting the ODBC drivers working is a little messy across different operating systems. If you already have a Java Runtime Environment (JRE) installed for other applications then this is fairly straightforward.
Download the Vertica JDBC drivers for your Vertica server version from the MyVertica portal. Place the driver (a .jar file) in a reasonable location for your operating system.
Install RJDBC into your workspace:
install.packages("RJDBC",dep=TRUE)
In your R script, load the RJDBC module and create an instance of the Vertica driver, adjusting the classPath argument to point to the location and filename of the driver you downloaded:
library(RJDBC)
vDriver <- JDBC(driverClass="com.vertica.jdbc.Driver", classPath="full\path\to\driver\vertica_jdbc_VERSION.jar")
Make a new connection using the driver object, substituting your connection details for the host, username and password:
vertica <- dbConnect(vDriver, "jdbc:vertica://host:5433/db", "username", "password")
Then run your SQL queries:
myframe = dbGetQuery(vertica, "select Address,City,State,ZipCode from MyTable")
You have to use double slash in the classPath arguement in JDBC function.
for example,
vDriver <- JDBC(driverClass="com.vertica.jdbc.Driver",
classPath="C:\\Program Files\\Vertica Systems\\JDBC\\vertica-jdk5-6.1.2-0.jar")
worked for me, while just copying and pasting the route failed.