isValidRes function

Check result object.

isValidRes(db, onLostNull = FALSE, ...)

Arguments

• db: rocker object
• onLostNull: TRUE or FALSE. If result lost, set .res to NULL
• ...: Optional, additional suitable parameters passed to DBI::dbIsValid()

Returns

TRUE or FALSE

Examples

db <- rocker::newDB()
rocker::setupSQLite(db)
rocker::connect(db)
rocker::writeTable(db, "mtcars", mtcars)
rocker::sendQuery(db, "SELECT * FROM mtcars;")
rocker::isValidRes(db)
rocker::clearResult(db)
rocker::disconnect(db)
rocker::unloadDriver(db)

See Also

Other rocker-S3-functions: appendTable(), begin(), canConnect(), clearResult(), columnInfo(), commit(), connect(), createTable(), disconnect(), execute(), existsTable(), fetch(), getInfoCon(), getInfoDrv(), getInfoRes(), getQuery(), getRowCount(), getRowsAffected(), getStatement(), hasCompleted(), isValidCon(), isValidDrv(), listFields(), listObjects(), listTables(), readTable(), removeTable(), rocker-README, rocker-S3-functions, rocker-package, rollback(), sendQuery(), sendStatement(), setupDriver(), setupMariaDB(), setupPostgreSQL(), setupSQLite(), unloadDriver(), validateCon(), writeTable()