sql - Selecting COUNT (*) with DISTINCT - Stack Overflow
656 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 …
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 …
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 …
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?
sql - Counting DISTINCT over multiple columns - Stack Overflow
Sep 24, 2009 · SELECT COUNT(*) FROM (SELECT DISTINCT DocumentId, DocumentSessionId FROM DocumentOutputItems) AS internalQuery I need to count the number of distinct items …
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 …
SQL - how to count unique combination of columns
Dec 15, 2011 · SQL - how to count unique combination of columns Asked 13 years, 11 months ago Modified 1 year, 1 month ago Viewed 95k times
Partition Function COUNT () OVER possible using DISTINCT
Jun 26, 2012 · I'm trying to write the following in order to get a running total of distinct NumUsers, like so: NumUsers = COUNT(DISTINCT [UserAccountKey]) OVER (PARTITION BY [Mth]) …
sql - MySQL distinct count if conditions unique - Stack Overflow
Oct 30, 2013 · I am trying to build a query that tells me how many distinct women and men there are in a given dataset. The person is identified by a number 'tel'. It is possible for the same 'tel' …