Search results
23 maj 2011 · SQL Query To Obtain Value that Occurs more than once. I need to query my database to show the records inside my table where lastname occurs more than three times. Example: in my Students Table, there are 3 people with Lastname 'Smith', 4 with 'Johnson', and 1 with 'Potter'.
15 kwi 2016 · 0. You can use an IN clause as follows :-. SELECT DISTINCT name, location_id, application_id FROM apps. WHERE ((application_id is null) or (application_id = '4')) AND ((location_id is null) or (location_id in ('2', '3', '4', '5'))) answered Jun 23, 2009 at 9:29. Steve Weet.
19 lip 2018 · How I can select all row where account_id occurs more than once? For the example above it will return rows 1, 2, 4, 5. I tried this one query, but it does not return what I expect: select * from table_name t1 where (select count(*) from table_name t2 where t1.account_id = t2.account_id) > 1 order by t1.account_id;
6 dni temu · 3.1. In the SELECT Clause. First, we’ll take a look at an example with the Student and Exam tables, in which we’ll retrieve each student’s name and the number of exams they’ve taken: SELECT s.name, (SELECT COUNT (*) FROM Exam e WHERE e.student_id = s.id) AS exam_count FROM Student s;
18 gru 2023 · You can refer to each WITH statement multiple times in another WITH statement or in a main query. In our example, we referenced the first defined WITH (the country_export_by_product CTE) in two places: In the second WITH (the country_export_total CTE) and in the main query.
8 wrz 2021 · rn = ROW_NUMBER() OVER (PARTITION BY login_name ORDER BY login_time DESC) To: rn = ROW_NUMBER() OVER (PARTITION BY login_name ORDER BY login_time)
30 wrz 2014 · I am looking to return a list of users from a database. There are hundreds of users in the db. Each user has it's own unique user_id. All of the values that I am trying to return reside in the same column (meta_value). The database structure is as follows: id | user_id | meta_key | meta_value. sample data is as follows:
