Webselect * from test order by flag , case when flag then date end desc , case when not flag then date end asc Share. Improve this answer. Follow answered Apr 10, 2024 at 11:43. Vao Tsun Vao Tsun ... PostgreSQL conditional multiple order by with asc/desc. Related. 2115. PostgreSQL "DESCRIBE TABLE" 2340. WebIf sorting is not chosen, the rows will be returned in an unspecified order. The actual order in that case will depend on the scan and join plan types and the order on disk, but it must not be relied on. A particular output ordering can only be guaranteed if the sort step is explicitly chosen. The ORDER BY clause specifies the sort order:
PostgreSQL - CASE - GeeksforGeeks
WebApr 12, 2024 · Case Study 2. 1.List down 8th row values from the table . 2.List down all movies released between 2024 and 2024. 3.List down all the movies released not between 2024 and 2024. 4.List down first 3 movies based on released year in descending order. 5.List down all movies by Vijay in the year 2024 WebAug 28, 2024 · The PostgreSQL CASE expression is the same as IF/ELSE statement in other programming languages. PostgreSQL provides two forms of the CASE expressions. Syntax: CASE WHEN condition_1 THEN result_1 WHEN condition_2 THEN result_2 [WHEN ...] [ELSE result_n] END For examples we will be using the sample database (ie, dvdrental ). Example … how many tsp is 13 ml
How to Use CASE in ORDER BY in SQL LearnSQL.com
WebFeb 9, 2024 · ORDER BY can be applied to the result of a UNION, INTERSECT, or EXCEPT combination, but in this case it is only permitted to sort by output column names or numbers, not by expressions. [6] Actually, PostgreSQL uses the default B-tree operator … LIMIT and OFFSET allow you to retrieve just a portion of the rows that are generat… In order to calculate the union, intersection, or difference of two queries, the two q… ASC order is the default. Ascending order puts smaller values first, where “ smalle… WebYes, you are correct. This is the default behavior on Mac. Collations don't work on any BSD-ish OS (incl. OSX) for UTF8 encoding. Here is a reference to prove that: Problems with sort order (UTF8 locales don't work. As a_horse_with_no_name said, Postgres uses the collation implementation from the OS. how many tsp is 1000 mg