dbIsValid: Is this DBMS object still valid?

In RAthena: Connect to 'AWS Athena' using 'Boto3' ('DBI' Interface)

Is this DBMS object still valid?

Description

This method tests whether the dbObj is still valid.

Usage

## S4 method for signature 'AthenaConnection'
dbIsValid(dbObj, ...)

## S4 method for signature 'AthenaResult'
dbIsValid(dbObj, ...)

Arguments

dbObj	An object inheriting from DBIObject, i.e. DBIDriver, DBIConnection, or a DBIResult
...	Other arguments to methods.

Value

dbIsValid() returns logical scalar, TRUE if the object (dbObj) is valid, FALSE otherwise.

See Also

dbIsValid

Examples

## Not run: 
# 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())

# Check is connection is valid
dbIsValid(con)

# Check is query is valid
res <- dbSendQuery(con, "show databases")
dbIsValid(res)

# Check if query is valid after clearing result
dbClearResult(res)
dbIsValid(res)

# Check if connection if valid after closing connection
dbDisconnect(con)
dbIsValid(con)

## End(Not run)

RAthena documentation built on Dec. 28, 2022, 1:19 a.m.