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…
Tag: dbi
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 w…
Is there a way to update ONLY field.type data onto SQL using dbWriteTable? Without having to pass the whole table’s value
So pretty much I am pulling a whole table from my database using: So this pulls my data as I need. After that perform some tests and to check the size of each column. I reassign field types based on my test. After that I would send the data back to the database using: Because I am not manipulating any
Encoding special characters SQL to R and back
I have a problem passing data from R to SQL and then reading it back The original data is from some excel files and have the following word: Průmyslový Using latin1 for encoding depreciates the u within the word Prumyslový Using latin2 for encoding changes the accent of the u Prùmyslový Which encoding could i…
How to compose query properly using dbGetQuery command?
I have a small database in PostgresSQL. And I connected to it via R-studio and try to retrieve data from database. I wrote a command, but it doesn’t work. And I don’t know what’s the problem. Please, help me. So, the code works well. But these two codes fail Where con is the postgres connect…
How can I print the SQL query executed after Perl’s DBI fills in the placeholders?
I’m using Perl’s DBI module. I prepare a statement using placeholders, then execute the query. Is it possible to print out the final query that was executed without manually escaping the parameters and dropping them into the placeholders? Thanks Answer See Tracing in DBI. The following works using…