Web我認為這可以通過 window 函數row_number()和last_value()來完成:. select room_code, service_detail, sba_date, provider_start_time, provider_end_time, last_name from ( select … WebNov 20, 2013 · CASE is an expression and has to produce a result of a single well defined type. So as long as the types of all columns are compatible, they can all be placed into a single CASE expression. If that's not the case then …
【SQL Server】ORDER BYを複数のカラムに対してソートするや …
WebThe ORDER BY clause specifies the particular order in which you want selected rows returned. The order is sorted by ascending or descending collating sequence of a column's or an expression's value. WebJun 21, 2016 · 42. O ORDER BY permite que você especifique vários critérios: SELECT ... ORDER BY expressao1, expressao2, expressao3... No seu caso, basta isso: SELECT id, nome FROM categoria ORDER BY id != 100, nome. Veja funcionando perfeitamente no SQL Fiddle. A expressão id != 100 vai retornar false, que é ordenado antes de true, deixando o registro ... theory explanation
【SQL】ORDER BY句の使い方
To put it very simply, it’s an SQL statement that goes through and returns values according to the conditions specified. It is SQL’s way of writing the IF-THEN-ELSE logic and consists of five keywords: CASE, WHEN, THEN, ELSE, and END. When used in a SELECT statement, it works like this: if it is the case when the … See more Nope! Although it is most often used there, CASE is not limited to SELECT statements. For example, you can use it in clauses like IN, WHERE, HAVING, and ORDER BY. Using a CASE statement in a query once doesn’t mean you have hit … See more The ORDER BY clause is used to sort the result in either ascending or descending order. Want a refresher on how it works? No problem! This … See more It probably comes to you as a surprise that CASE statements aren’t used only in SELECT statements. You’ve seen it come in handy when used … See more You can also use the CASE statement with keywords other than the ones I have mentioned. For example, you can use it with DESC. Let’s say I put it in the above code: In the previous … See more WebJul 7, 2011 · SELECT columns FROM tables WHERE condition ORDER BY case when Table1.Col1 IS NULL then 0 end, Table2.Col2 DESC, case when Table1.Col1 IS NOT NULL … theory eyewear