Displaying 20 results from an estimated 1000 matches similar to: "sqlQuery and string selection"
2005 Nov 02
1
nlminb failed to converge with lmer
Dear all,
I'm building binomial mixed-model using lme4 package.
I'm able to obtain outputs properly except when I include two particular
variables: date (from 23 to 34; 1 being to first sampling day) and Latitude
(UTM/100 000, from 55.42 to 56.53). No "NA" is any of those variables.
In those cases, I get the warning message: "nlminb failed to converge"
I tried to
2006 Sep 06
1
Help on estimated variance in lme4
Dear all,
I get an error message when I run my model and I am not sure what to do
about it.
I try to determine what factors influence the survival of voles. I use a
mixed-model because I have several voles per site (varying from 2 to 19
voles).
Here is the model:
###
fm5 <-lmer(data=cdrgsaou2,
alive~factor(pacut)+factor(agecamp)+factor(sex)+ResCondCorp+(1|factor(cdrgsa
ou2$ids)),
2011 Dec 12
2
Automated Regressions
Hello R-Experts,
I've got a question, concerning the automation of a number of regressions
(lm) with the help of a loop (for i in ....).
The situation is as follows (the code follows after that):
I have my data in an access database. I have historical data for 2000 parts,
for each of this parts I want to do a regression analysis, so I need to do
2000 regressions (just for one country, there
2003 Feb 10
3
non-SQL sqlQuery error
Dear all,
I've encountered a curious problem. I am trying to run an SQL query
using sqlQuery() function in RODBC.
The query works fine when run in a stand-alone SQL browser (Microsoft
Query Analyzer, in particular).
However, when I use the exact same thing from sqlQuery() function, I get
the following error:
Error in "[.data.frame"(data, , ) : not all specified columns exist
2010 Oct 11
1
importing numeric types via sqlQuery
Hi everyone,
I am using the sqlQuery function (in RODBC library) to import data from a database into R. My table (called temp) in the database looks like this:
category numabc 54469517.307692307692def 36428860.230769230769
I used the following R code to pull data into R:data <-sqlQuery(channel, "select category, num from temp;")
However, the result is that "num" gets all its
2007 Nov 29
2
sqlQuery of variable of type varchar - confusion with "."
Dear list,
I have a rather large dataset in SAS which I export to a SQLite database for subsequent use in R.
One of the columns is
cowidp
1881501224.2
1881501224.2
and the column is stored as a character in SAS. It becomes a varchar in the database (it should be - it is an identifier; not a number). Reading this into R gives
cowidp
1 1881501224
2 1881501224
....
- i.e. the
2009 Dec 19
2
Run time error when executing sqlQuery using the 64-bit version of R with 64-bit RODBC package in a Solaris 10 Sparc machine.
I have compiled and linked a 64 bit version of R (R 2.9.2) and the
corresponding unix ODBC 64 bit package
The red highlighted text below is the error I'm getting trying to when
invoking a sqlQuery
> library(RODBC)
> channel <- odbcConnect("OraLSH", <user>, <password>)
> sqlQuery(channel,"select sysdate from dual")
Error in .Call(C_RODBCFetchRows,
2009 Sep 15
1
quoting a table name due to a special character in sqlQuery (RODBC)
Dear List,
I have a problem with RODBC on a Paradox-DB, sqlQuery, and special
characters in table names. Unfortunately, some of the latter include the
underscore <_>. And I am not able to change them.
That's not a problem, when I quote the table name:
> sqlQuery(channel2, 'SELECT * FROM "anmeldung-alt"')
Btw, if I swap ' and " it does not work:
>
2012 Sep 13
1
Paasing values to sqlQuery like SAS macro
Hello,
We lost our SAS licence & I am busy transfering my old SAS programs to R
environment. I am very new to R. In 1 program I was creating SAS macro
vars & passing them into a SQL query to run against the server. There are 3
variables firm, begindt, enddt. # of values for each varies month to month.
Is there anyway I could do the same thing in R & pass the afore mentioned
values
2009 Apr 21
3
create objects in a loop and adding sqlQuery content to them
Hi there,
I've got a database or rather spreadsheet with several columns and rows.
For one column named sites I want to loop through all possible values
and retrieve
all data out of the database where site = x and write it into an
object named 'sitex_data'.
Somehow I'm really missing something as I'm not able to create these
sitex_data objects with
the database values,
2007 Apr 02
1
RODBC, sqlQuery with NA:s
Hi R-users,
I'm trying to retrieve data from MS SQL database with RODBC's
sqlQuery-function:
temp <- sqlQuery(channel,"select *, (select text from table1 where
koodi='paa' and koodi2=paa) as tempor from table2")
str(temp)
…
$ var0 : num NA NA 1.6 NA NA 1.4 NA 1 NA NA ...
$ var1 : Factor w/ 45 levels "
2006 Oct 13
1
RODBC sqlQuery insert slow
Large for loops are slow. Try to avoid them using apply, sapply, etc.
I've made the paste statements a lot shorter by using collapse. See
?paste for more info.
Append.SQL <- function(x, channel){
sql="INSERT INTO logger (time, v1, v2, v3, v4, v5, v6, v7, v8, v9,
v10) VALUES("d1=strptime(x[2],"%d/%m/%y %H:%M:%S %p '", d1, "' ,",
paste(x[3:12],
2009 Aug 20
1
problems with RODBC, sqlQuery
Hello,
Im trying to get a Oracle database to R, but I'm having problems with most
of SQL sintax. Suppose that Im trying to bring a table "TABLE" with columns
"COL1","COL2",.. from schema "SCHEMA". What am I doing wrong?
library(RODBC)
channel<-odbcConnect("xxx",uid="xxx",pwd="xxx")
sqlQuery(channel, "select * from
2011 Aug 10
1
subqueries in sqlQuery function (package RODBC)
Hi R users.
sorry for missing example and if question is to general but I am wondering
if it is possible to execute subqueries in function sqlQuery (package RODBC)
with opened connection with Excel or SQL server 2000. I couldn't find any
example of this.
And if it is possible what should be a correct syntax for this query:
SELECT ct,COUNT(*) as n
FROM (SELECT COUNT(*) AS ct FROM children
2008 Aug 12
1
[RODBC] date attribute in sqlQuery
Hello R users,
I would like to use an integer and a date as attributes in sqlQuery,
and these arguments
are defined in my function.
Here is my function:
GetReturn<-function(code,date)
{
channel<-odbcConnect("db","user1","password")
ssql<-paste("select * from TABLE Where PF_CODE =",code,"and PF_DATE=",date)
2007 Jan 16
1
RODBC: sqlQuery is successful, but a similar sqlFetch returns error
Greetings guRus --
I have successfully queried a large (24,445 rows by 281 cols.) in-house
database using the following RODBC query (without the line breaks)
testout <- sqlQuery(channel, "select idSchedule,EXCL_Total from
dbo.vwC1198_2006_RawData_With_CMPL_EXCL")
This returns a dataframe of 24445 rows and two columns (as intended),
but the following command
testout
2002 Jun 04
1
data format of x in x <- sqlQuery()
All
When I read data into an R variable x using RODBC command:
x <- sqlQuery(channel,"select a, b from tabl",as="data frame")
and view x, I get 3 columns the first one being the index of
the rows in x.
What options do I use in sqlQuery so as not have the index in x ?
How do I get rid of the index otherwise.
For some functions like princomp (and boxplot) for
2011 Jul 17
1
ODBC MySql DB: sqlQuery empty
Dear R Beginners, Experts and Users,
I already asked this question on the R-sig-DB mailing list, but sadly
didn't got a reply :-( .
Keeping fingers crossed that I have more luck on the main R mailinglist :) .
I'm trying to connect to a MySQl database via Gnu R using the RODBC
interface. The conenction workes but I get an empty result string.
Gnu R and the MySql DB are running on a 64 bit
2012 Mar 28
1
Is it possible to de-select with sqlQuery from the RODBC library?
Dear R-list,
I'm queering a M$ Access database with the sqlQuery function from the RODBC library. As I cannot make a working example with a database here is an illustrative example,
library(RODBC)
mdbConnect<-odbcConnectAccess("S:/data/ ... /databse.mdb")
data <- sqlQuery(mdbConnect, "select id, DOB, V1, V2, ..., V1009, V1011, V1013 from someTable")
I want
2005 Jan 11
1
RODBC package -- sqlQuery(channel,.....,nullstring=0) still gives NA's
R-help,
I'm using the RODBC package to retrieve data froma ODBC database which
contain NA's.
By using the argument nullstring = "0" in sqlQuery() I expect to
coerce them to numeric but still get NA's in my select.
I'm running on Windows XP
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386,