How to count occurrences of a column value efficiently in SQL?
How to count occurrences of a column value efficiently in SQL? Asked 16 years, 2 months ago Modified 1 year, 9 months ago Viewed 712k times
sql - Is it possible to specify condition in Count ()? - Stack Overflow
608 Is it possible to specify a condition in Count()? I would like to count only the rows that have, for example, "Manager" in the Position column.
In SQL, what's the difference between count (column) and count ...
Sep 12, 2008 · The COUNT (*) sentence indicates SQL Server to return all the rows from a table, including NULLs. COUNT (column_name) just retrieves the rows having a non-null value on the rows.
Count based on condition in SQL Server - Stack Overflow
Does anyone know how can I do a count in SQL Server based on condition. Example: How can I do a column count for records with name 'system', and total CaseID records in the table?
SQL COUNT* GROUP BY bigger than, - Stack Overflow
I want to select the distinct keys with the occurence number, this query seems functionate: SELECT ItemMetaData.KEY, ItemMetaData.VALUE, count(*) FROM ItemMetaData GROUP BY …
sql - How to use count and group by at the same select statement ...
Apr 27, 2010 · I have an SQL SELECT query that also uses a GROUP BY, I want to count all the records after the GROUP BY clause filtered the resultset. Is there any way to do this directly with …
sql - COUNT DISTINCT with CONDITIONS - Stack Overflow
Dec 27, 2012 · 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 same table, what should I do?
Count number of records returned by group by - Stack Overflow
Jun 16, 2016 · How do I count the number of records returned by a group by query, For eg: select count(*) from temptable group by column_1, column_2, column_3, column_4 Gives me, 1 1 2 I need …
SQL: Combine Select count (*) from multiple tables
How do you combine multiple select count(*) from different table into one return? I have a similar sitiuation as this post but I want one return. I tried Union all but it spit back 3 separate ro...
SQL count rows in a table - Stack Overflow
Mar 7, 2015 · I need to send a SQL query to a database that tells me how many rows there are in a table. I could get all the rows in the table with a SELECT and then count them, but I don't like to do it …