Displaying 20 results from an estimated 2000 matches similar to: "sqldf error only on Unix not Windows"
2010 Jan 26
1
[Fwd: Re: question on sqldf syntax]
Sorry mistake from me. This was another problem in my mind , but with
RMySQL.
Christian
> library(RMySQL)
> library(sqldf)
> sqldf("Select * from mtcars")
Fehler in mysqlNewConnection(drv, ...) :
RS-DBI driver: (Failed to connect to database: Error: Access denied
for user 'user'@'localhost' (using password: NO)
)
Fehler in if (dbname ==
2017 Sep 11
0
Case statement in sqldf
2018-03-3 in your code should be 2018-03-31.
The line
then'201415'
needs to be fixed.
When posting please provide minimal self-contained examples. There was
no input provided and library statements not relevant to the posted
code were included.
Fixing the invalid date and bad line, getting rid of those library
statements that are unnecessary and providing some test input, it
works
2011 Jul 14
1
SQldf with sqlite and H2
SQldf with sqlite and H2
I have a large csv file (about 2GB) and wanted to import the file into R and do some filtering and analysis. Came across sqldf ( a great idea and product) and was trying to play around to see what would be the best method of doing this. csv file is comma delimited with some columns having comma inside the quoation like this "John, Doe".
I tried this first
2017 Sep 11
4
Case statement in sqldf
Hi all,
I am trying to create a new variable called Fiscal Year (FY) using case expression in sqldf and I am getting a null FY , see the code below .
Please advise me as to how I can do this mutation.
library(zoo)
library(lubridate)
library(stringr)
library(RH2)
library(sqldf)
cr$ReportDate = as.Date(cr$ReportDate, format ='%Y-%m-%d')
> cr2 = sqldf(" select
2017 Aug 11
0
Package sqldf in R and dates manipulation
See FAQ #4 on the sqldf github home page.
On Fri, Aug 11, 2017 at 9:21 AM, Mangalani Peter Makananisa
<pmakananisa at sars.gov.za> wrote:
> Dear all,
>
> I recently read the book " R data preperation and manipulation using sqldf package" by Djoni Darmawikarta
> However, I have a problem with manipulation of dates using this package, I do not get the expected results.
2017 Sep 11
0
Case statement in sqldf
> On Sep 11, 2017, at 1:05 AM, Mangalani Peter Makananisa <pmakananisa at sars.gov.za> wrote:
>
> Hi all,
>
> I am trying to create a new variable called Fiscal Year (FY) using case expression in sqldf and I am getting a null FY , see the code below .
>
> Please advise me as to how I can do this mutation.
>
> library(zoo)
> library(lubridate)
>
2017 Aug 11
2
Package sqldf in R and dates manipulation
Dear all,
I recently read the book " R data preperation and manipulation using sqldf package" by Djoni Darmawikarta
However, I have a problem with manipulation of dates using this package, I do not get the expected results. Do I need to install some packages to be able to subset the data by dates in sqldf?
I am not getting Djoni Darmawikarta email address.
Please see the practice
2012 May 09
2
Problem with SQLDF - Error in sqliteExecStatement(con, statement, bind.data) : RS-DBI driver: (error in statement: no such table:
Hi All,
I am having trouble executing SQL statements on a few dataframes, but the
funny thing is that I am able to execute the statement on some other
dataframes.
To test, I have 2 very small dataframes (6 rows and some columns). One is
'lessliq', the dput is given below.
> dput(head(lessliq))
structure(list(V1 = c(50464677L, 50464846L, 50432581L, 50426614L,
50504329L, 50504735L), V2
2009 Dec 25
0
sqldf 0.2-0
A new version of sqldf, version 0.2-0, has been uploaded to CRAN and
should be available on most mirrors by now.
NEW
- works with the new version of DBI package, DBI 0.2-5. The default
action of this version of DBI quotes those column names in select
statements that are SQL reserved words (rather than appending __1 to
them which was the previous default action). As a result it should no
2009 Dec 25
0
sqldf 0.2-0
A new version of sqldf, version 0.2-0, has been uploaded to CRAN and
should be available on most mirrors by now.
NEW
- works with the new version of DBI package, DBI 0.2-5. The default
action of this version of DBI quotes those column names in select
statements that are SQL reserved words (rather than appending __1 to
them which was the previous default action). As a result it should no
2010 May 20
1
sqldf: issues with natural joins
Hello,
I'm having trouble discovering what's going wrong with my use of natural
joins via sqldf.
Following the instructions under 4i at http://code.google.com/p/sqldf/,
which discusses creating indices to speed joins, I have been only unreliably
able to get natural joins to work.
For example,
> Tid <- c('AES 01-01-02 10:58:00', 'AES 01-01-02 11:53:00', 'AES
2011 Mar 09
2
SQLDF - Submitting Queries with R Objects as Columns
Fellow R programmers,
I'd like to submit SQLDF statements with R objects as column names.
For example, I want to assign "X" to "var1" (var1<-"X") and then refer to
"var1" in the SQLDF statement. SQLDF needs to understand that when I
reference "var1", it should look for "X" in the dataframe.
This is necessary because my SQLDF
2012 Jan 23
1
sqldf + Date class. Ordering and summary statistics appear to be incorrect.
I've been using sqldf heavily lately but have encountered problems
with ordering of observations or calculating statistics such as max()
and min() when the variable used is of class Date.
For example, if I run the following code:
=============== begin code =================
library(sqldf)
2017 Aug 11
0
Fwd: RE: Package sqldf in R and dates manipulation
Sent from Samsung tablet.
Dear all,
?
I recently read the book ? R data preperation and manipulation using sqldf package? ?by Djoni Darmawikarta?
However, I have a problem with manipulation of dates using this package, I do not get the expected results. Do I need to install some packages ?to be able to subset the data by dates in sqldf?
?
I am not getting Djoni Darmawikarta?email address.
?
2010 Jul 20
1
Error using sqldf
Hi,
I am running a query using sqldf() [package : sqldf]. The query is:-
userid <- 5
taskid <- 5
tab1 <- fn$sqldf("SELECT tobiiEvents.data1, tobiiEvents.data2,
events.`timestamp` as tobiiTime
FROM tobiiEvents
INNER JOIN events ON events.eventid = tobiiEvents.eventid
WHERE tobiiEvents.subtype = 'MOUSE' AND tobiiEvents.userid = 5 AND
tobiiEvents.taskid = 5
ORDER BY
2010 Jul 28
1
sqldf 0.3-5 package or tcltk problem
This is my first post. I am running Mac OS X version 10.6.3. I am running R 2.11.0 GUI 1.33 64 bit.
This may or may not be related to sqldf, but I experienced this problem while attempting to use an sqldf query. The same code runs with no problem on my Windows machine. Here is what happens:
> r=sqldf("select ... ")
Loading required package: tcltk
Loading Tcl/Tk interface ...
Then
2013 Jan 15
1
SQLDF column errors
I am trying to exclude integer values from a small data frame 1, d1 that
have matching hits in data frame 2, d2 (Very big) which involves matching
those hits first. I am trying to use sqldf on the df's in the following
fashion:
df1:
V1
12675
14753
16222
18765
df2: head(df2)
V1 V2
13647 rd1500
14753 rd1580
15987 rd1590
16222 rd2020.....
2008 Dec 14
1
error with sqldf v0-1.4
I'm getting an error message when using the new version of sqldf,
> library(sqldf)
> str(kdv)
'data.frame': 71 obs. of 3 variables:
$ dpss: num 0.117 0.144 0.164 0.166 0.165 ...
$ npdp: num 0.1264 0.0325 0.0109 0.0033 0.0055 ...
$ logk: num 1.12 1.29 1.41 1.41 1.42 ...
> test=sqldf("select * from kdv")
Error in get("fun", env = this, inherits =
2008 Aug 28
3
drop unused levels in sqldf
Hi,
sqldf is a fantastic package, but when the SELECT procedure runs unused
levels remain in the output. I tried with the drop function, but without
success. Do you have any suggestions?
Thanx, Gianandrea
data(iris)
require(sqldf)
base<-sqldf("select * from iris where Species <> 'setosa'")
str(base) # Species with 3 levels!
--
View this message in context:
2013 Jan 14
1
sqldf package: using variables in where condition
Sent from my iPhone
On Jan 13, 2013, at 9:47 PM, ravsre <ravishree51 at hotmail.com> wrote:
> I am trying to use the sqldf package to create independent data frames from a
> master dataframe.
> I want to use sqldf package and perform a simple select statement. However,
> what I want to do is to create a loop and repeatedly send a variable to the
> where clause condition