sql - Selecting COUNT (*) with DISTINCT - Stack Overflow
659 In SQL Server 2005 I have a table cm_production that lists all the code that's been put into production. The table has a ticket_number, program_type, program_name and push_number along …
SQL to find the number of distinct values in a column
Apr 5, 2019 · SELECT COUNT(DISTINCT column_name) AS some_alias FROM table_name This will count only the distinct values for that column.
sql - COUNT DISTINCT with CONDITIONS - Stack Overflow
Dec 27, 2012 · tag | entryID ----+--------- foo | 0 foo | 0 bar | 3 If I want to count the number of distinct tags as "tag count" and count the number of distinct tags with entry id > 0 as "positive tag count" in the …
SQL - how to count unique combination of columns
Dec 15, 2011 · SQL - how to count unique combination of columns Asked 14 years, 2 months ago Modified 1 year, 3 months ago Viewed 96k times
sql - How to use sum () together with distinct ()? - Stack Overflow
Mar 21, 2025 · In the sub-query, you use distinct to remove duplicate tuples, which is very smart idea. Then in the first, do we still need distinct inside count()?
SQL count(*) and distinct - Stack Overflow
Dec 1, 2009 · Why can't we use count (distinct *) in SQL? As in to count all distinct rows?
Contar registros iguais com SELECT DISTINCT e COUNT
3 Busquei a mesma ajuda e essa foi uma solução que funcionou. SELECT DISTINCT campo1 ,campo2 ,campo3 ,campo4 ,campo5 ,campo6 ,campo7 ,COUNT(*) AS quantidade FROM tabela_a GROUP …
Difference Between Distinct Count () and Count (Distinct)
May 27, 2021 · Here, because there is a single row, the distinct has no effect; there's only one row and it's always going to be distinct. But if there were multiple rows, perhaps because there's a group by, it …
Using DISTINCT and COUNT together in a MySQL Query
Jun 16, 2009 · SELECTING DISTINCT PRODUCT AND DISPLAY COUNT PER PRODUCT for another answer about this type of question, this is my way of getting the count of product based on their …
sql - MySQL distinct count if conditions unique - Stack Overflow
Oct 30, 2013 · COUNT(DISTINCT tel, gender = 'male') as man_count seems to just return the same as COUNT(DISTINCT tel, gender) -- it doesn't take into account the qualifier there.