statement from the result of
dbGetInfo(res).dbGetStatement(res, ...)DBIResult .dbClearResult;
dbColumnInfo; dbFetch,
dbFetch,DBIResult-method,
fetch; dbGetRowCount,
dbGetRowCount,DBIResult-method;
dbGetRowsAffected,
dbGetRowsAffected,DBIResult-method;
dbHasCompleted,
dbHasCompleted,DBIResult-method