Update concepts-extensions.md

Author: GennadNY

articles/postgresql/flexible-server/concepts-extensions.md

@@ -377,7 +377,7 @@ To delete old data on Saturday at 3:30am (GMT)
 ```
 SELECT cron.schedule('30 3 * * 6', $$DELETE FROM events WHERE event_time < now() - interval '1 week'$$);
 ```
-To run vacuum every day at 10:00am (GMT)
+To run vacuum every day at 10:00am (GMT) in default database 'postgres'
 ```
 SELECT cron.schedule('0 10 * * *', 'VACUUM');
 ```
@@ -386,6 +386,15 @@ To unschedule all tasks from pg_cron
 ```
 SELECT cron.unschedule(jobid) FROM cron.job;
 ```
+To see all jobs currently scheduled with pg_cron
+```
+SELECT * FROM cron.job;
+```
+To run vaccuum every day at 10:00 am (GMT) in database 'testcron' under pg_admin role account
+```
+SELECT cron.schedule_in_database('VACUUM','0 10 * * * ','VACUUM','testcron',null,TRUE)
+```
+
 > [!NOTE]
 > pg_cron extension is preloaded in every Azure Database for PostgreSQL -Flexible Server inside postgres database to provide you with ability to schedule jobs to run in other databases within your PostgreSQL DB instance without compromising security.