R
SereneDB works with RPostgres, an R interface to PostgreSQL using the DBI specification.
Install
install.packages("RPostgres")
Connect
library(DBI)
con <- dbConnect(RPostgres::Postgres(),
host = "localhost",
port = 7890
)
Create a table and insert data
dbExecute(con, "
CREATE TABLE IF NOT EXISTS articles (
id INTEGER PRIMARY KEY,
title TEXT,
views INTEGER
)
")
dbExecute(con, "INSERT INTO articles VALUES ($1, $2, $3)",
params = list(1L, "Introduction to Vector Search", 4200L))
Query
Queries return a data.frame:
df <- dbGetQuery(con, "SELECT title, views FROM articles ORDER BY views DESC")
print(df)
Bulk loading
For large datasets, use dbWriteTable with copy = TRUE:
movies <- read.csv("movies.csv")
dbWriteTable(con, "movies", movies, copy = TRUE, overwrite = TRUE)
Cleanup
dbDisconnect(con)