diff options
Diffstat (limited to 'hello/driver.cxx')
-rw-r--r-- | hello/driver.cxx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hello/driver.cxx b/hello/driver.cxx index 16b1b75..2b7ba1f 100644 --- a/hello/driver.cxx +++ b/hello/driver.cxx @@ -95,6 +95,24 @@ main (int argc, char* argv[]) } */ + // Print some statistics about all the people in our database. + // + { + transaction t (db->begin ()); + + odb::result<person_stat> r (db->query<person_stat> ()); + + // The result of this query always has exactly one element. + // + const person_stat& ps (*r.begin ()); + + cout << endl + << "count : " << ps.count << endl + << "min age: " << ps.min_age << endl + << "max age: " << ps.max_age << endl; + + t.commit (); + } // John Doe is no longer in our database. // |