Sorts data returned by a query in SQL Server. The CASE statement uses the DATEPART function to determine the hour and then returns the appropriate greeting. In databases created with the NLSCASE INSENSITIVE property, operations on columns and expressions of NCHAR or NVARCHAR data types make no distinction between upper case and lower case letters. ORDER BY clause can be used to sort the results returned by SELECT statement in SQL Server. Case is supposed to return one value, not a tuple. I want to sort them case-sensitive and thought that a COLLATE in the ORDER BY would do it.

The issue was how to improve the performance as well as remove the logic of preparing OrderBy from application. When this attribute is omitted from the ORDER BY clause, the sort order is defaulted to ASC or ascending order. In Oracle, a table stores its rows in unspecified order regardless of the order … It doesn't. Le CASE peut être utilisé dans n’importe quelle instruction ou clause, telle que SELECT, UPDATE, DELETE, WHERE, ORDER BY ou HAVING.
The ORDER BY clause sorts query results by specified columns or expressions. order by case when sort_order= 'D' then -1 else 1 end * my_numeric_column Connor and Chris don't just spend all day on AskTOM. ORDER BY Syntax The ORDER BY command sorts the result set in ascending order by default.
L’utilisation du CASE est possible de 2 manières différentes : Comparer une colonne à un set de résultat possible; Élaborer une série de conditions booléennes pour déterminer un résultat Sometimes, we need result set to be sorted in a custom order, for example, a specific value must appear at top of result set, and others can be sorted in standard order. This solution is listed here in simple version using AdventureWorks sample database. Thanks for shopping with Order A Case. A table contains some text with different cases. ORDER BY in NLSCASE INSENSITIVE databases.

Wineries, deals and new releases, all in one place. Summary: in this tutorial, you will learn how to use the Oracle ORDER BY clause to sort the result set by one or more columns in ascending or descending order.. Introduction to Oracle ORDER BY clause. To sort the records in descending order, use the DESC keyword.. Now that we've covered the basics, let's see how CASE can be used to implement a dynamic ORDER BY. Sometimes, we need result set to be sorted in a custom order, for example, a specific value must appear at top of result set, and others can be sorted in standard order. Dynamic ORDER BY. A: This is a typical requirement and the usage of CASE with Order by is rather unique. ORDER BY. Syntax

select country_name from t_country order by case country_name when 'Japan' then 1 else 2 end, country_name ソートの第1条件として'Japan'かどうかを判断して、第2条件として国名を見る、という方法。 やー、SQLは奥が深いな。 It orders the result set by specified column list. Transact-SQL Syntax Conventions.

You can also catch regular content via Connor's blog and Chris's blog . Under SQL Server. For example: SELECT city FROM customers WHERE customer_name = 'Apple' ORDER BY city; The ORDER BY keyword is used to sort the result-set in ascending or descending order.