Returns logical scalar if the table exists or not. TRUE
if the table exists, FALSE
otherwise.
# S4 method for AthenaConnection,character
dbExistsTable(conn, name, ...)
A DBIConnection object, as returned by
dbConnect()
.
The table name, passed on to dbQuoteIdentifier()
. Options are:
a character string with the unquoted DBMS table name,
e.g. "table_name"
,
a call to Id()
with components to the fully qualified table name,
e.g. Id(schema = "my_schema", table = "table_name")
a call to SQL()
with the quoted and fully qualified table name
given verbatim, e.g. SQL('"my_schema"."table_name"')
Other parameters passed on to methods.
dbExistsTable()
returns logical scalar. TRUE
if the table exists, FALSE
otherwise.
if (FALSE) {
# Note:
# - Require AWS Account to run below example.
# - Different connection methods can be used please see `RAthena::dbConnect` documnentation
library(DBI)
# Demo connection to Athena using profile name
con <- dbConnect(RAthena::athena())
# Write data.frame to Athena table
dbWriteTable(con, "mtcars", mtcars,
partition = c("TIMESTAMP" = format(Sys.Date(), "%Y%m%d")),
s3.location = "s3://mybucket/data/"
)
# Check if table exists from Athena
dbExistsTable(con, "mtcars")
# Disconnect conenction
dbDisconnect(con)
}