I created a table from a data source using tbl(). I need to add a column including 1:nrow() to my dataset and tried different methods but I didn’t succeed. My code is as below: It doesn’t add column ID to my dataset and only adds column step. Using as.data.frame(), it works but so slow. Do you have any ideas? thanks
Tag: dbplyr
Syntax error in SQL code being used in R, no row_number function found
I am using RSQLite, DBI, and dbplyr packages. I’m watching this YouTube video by TechTFQ. I’m getting a syntax error with this line. Error: near “row_number”: syntax error I’m certain that the SQL syntax I’m writing here is the same as what I’m watching in the YouTube video, except for the differences in the dataframe that I’m using and the
R using RSQLite, DBI and dbplyr, can’t have more than one table in the RSQLite in order to make a join
I’m having a hard time understanding the behavior of these three packages: RSQLite, DBI, and dbplyr. I’m using the mtcars dataframe and I’m loading it with the tibble package to add the car name as one of the rows. I also created my own table that has information about where all these cars were built: By creating these two tables
Select rows where array contains one of several values in bigquery (ideally with dbplyr)
I have a large set of tweets on bigquery and now want to filter those that contain at least one of a list of hashtags. The hashtags are saved in an array column (uploaded from a list column in R). How can I select rows that contain one of multiple values in any place in that array? Below the code
How can I translate this SQL code to R script using dplyr?
I’m currently working on a project and I want to summarize a column from a joined table twice. SQL code is this: …and the result is this: Database tables are as shown here: I hope that I have provided all the information needed. Question: How can I have the same result in R by only using dplyr library? Table names
Connect to a DB using DBplyr
Problem I am trying to connect to a SQL Server which is on premises using dbplyr using the instructions here but I keep getting an error saying Invalid object name For simplicity I am using the same object naming convention as RStudio has in the instructions at the link above. Code that produces the error I use dbConnect to establish
How do you filter with a Dataframe, list, vector etc. to a table in a database in R?
I have a large set of id-s which is in a csv file. How could I filter on a database table using only that one-columned table in the csv file? For example in the ODBC database we have: TABLE 1 +–…
Can you name dbplyr’s simulated lazy tables?
dbplyr has some very useful-looking simulation functions so you can write queries while not connected to any real database, but I can’t seem to get actual table names into any of the queries I write …