I have below mentioned dataframe in R.
ID Amount Date
IK-1 100 2020-01-01
IK-2 110 2020-01-02
IK-3 120 2020-01-03
IK-4 109 2020-01-03
IK-5 104 2020-01-03
I'm using ID to fetch some…
I am using DBI, RMySql packages for interacting with MySql database.
Here are more details about configuration:
R version: 3.3.2
DBI version: 0.7
RMySql version: 0.10.13
Below is the schema for table…
Is it possible to pass a value into the query in dbGetQuery from the RMySQL package.
For example, if I have a set of values in a character vector:
df <- c('a','b','c')
And I want to loop through the values to pull out a specific value from a…
So I connected to my database just fine in the beginning:
con <- dbConnect(
MySQL(),
user = "username", password = "password",
host = "",
port = 3306
)
So everything was working but after a couple…
I am using RMySQL to query a database.
I used
df <- fetch(dbSendQuery(con, "SELECT some_col from some_table"))
and got back this message:
Error in fetch(dbSendQuery(con, "SELECT some_col from some_table")) :
error in evaluating the argument…
I am using R on Linux/Ubuntu machine. I am using RMySQL package to connect to a MySQL database
I need to drop a table from that database and would like to know a suitable command. I already looked the package documentation and searched for "drop"…
there is the package: RMySQL
How can I bulk upload lots of data to mysql from R? I have a csv with around 1 million lines and 80 columns.
Would something like this work?
dbWriteTable(con, "test2", "~/data/test2.csv") ## table from a file
I fear…
In a script that processes a lot of rows in a MySQL server, I use dbSendQuery and fetch to throttle the fetching and processing of results.
When my fetch command retrieves exactly the number of rows available (or left) in the resultset, leaving 0…
I'm trying to run a simple query that works with MySQL or other MySQL connector API's,
SELECT * FROM `table` WHERE type = 'farmer'
I've tried various methods using the RMySQL package and they all get the same error
RS-DBI driver warning:…
I have created a table output and connected to database through RMySQL, and now I need to add index to the table, I searched around but didn't found what I need in R language, please help.
A small example of the table would look like this:
mth <-…
I am using RMySQL to fetch some rows from a data table (the table is large so I cannot post it here but basically contains a bunch of numbers.. a total of 10 columns and about 12,000 rows). I get the following error when I run fetch(con,…
I have a MariaDB and I want to update a table with a local R data frame. As an example, I have a table with these column names:
id,foo,bar
id is the primary key on the data base table.
Is there a function with which I can easily update the remote…
I am trying to connect to MySQL from R. I have installed "8.0.11 MySQL Community Server - GPL" on my machine. In R studio, I have installed RMySQL Library.
When I give the command:
con = dbConnect(RMySQL::MySQL(),user="root", password = "password",…
I am trying to generate a bunch of SQL scripts using DBI::sqlInterpolate function but constantly get SQL error as the script embeds quotes that are returned with the R variable.
Here is the code:
> x<-'state_transtions'
> y<-'transition_time'
>…
