Mysql count distinct not working

It returns the set of distinct rows over the superset returned by the query, rather than distinct values in a single column. The system is using MySQL 5. Example: MySQL COUNT(DISTINCT) function. When I calculate the count distinct with a basic sql request, I get the same result as the number of rows. It will not remove duplicates from the report.

Usually cognos reports only display distinct rows. Always tell us your exact Oracle version number. Databases are often used to answer the question, “ How often does a certain type of data occur in a table? For example, you might want to know how many pets you have, or how many pets each owner has, or you might want to perform various kinds of census operations on your animals. If you do not use columns from all tables named in a query, MySQL stops scanning any unused tables as soon as it finds the first match.

DISTINCT will not return two rows with the same values. We experience a similar problem with 5. If all the rows called up is distinct , then the result returns correct. It seems to particularly happen when each row is not distinct. Therefore, if you use MySQL 8. GROUP BY clause is not sorted.

Select modelnumber from tbl_product where modelnumber is not distinct OR Select NOT Distinct modelnumber from tbl_product. I am looking for a select where I want to find the SUM of views for distinct threadids, not distinct views. Something that would return 40. Is there something I can do? Hey Dani, I saw your post via twitter.

Returns a count of the number of different non-NULL values. Although, from MariaDB 10. Hi again, at the moment I do not have a 32-bit machine to install but I will see what I can do. I am trying to run a distinct count with these query but its not working it brings the back but with wrong information.

I hope that you could provide me with a solution or advice. Given that MySQL did not support subqueries until 4. Now only returns foo and bar because fooand barare not in table1. The result set of a SQL query is a table, a set of rows and columns. I think also explains the.

If some of the rows belong with one another based on certain criteria, some of the values must be repeated to indicate that. Hi all - I just want to know why the distinct count in beast mode is not working. I have a count distinct on the resource names, but there are still duplicates appearing and being recognized as distinct. C NULL But my query is not working. Pivot Table Distinct Count not working When he check the Add this data to the Data Model in the Create PivotTable box it would return a blank page for either a new worksheet or existing worksheet.

Without the box check it would generate a pivot. But I guess thats not the case for the PackingSlipI so you have to use a while select, the query class or a direct sql statement. You should not skip the duplicate data, You should remove the duplicate data. I am using data studio trying to build a report that is tied to an order history data source. COUNT () returns if there were no matching rows.

The query below is the inner query we just saw which shows a list of distinct values in the ReportsTo column. Note that when we run this query alone, NULL is displayed in the result set, but this NULL value is not counted as a distinct value in the example query shown above when we count the number of distinct values. Re: Countif not working properly ? Sponsored by DevMountain. Get yourself career read. Because val column is not defined as NOT NULL there can be some NULL values in it and so MySQL have to perform table scan to find out.

Count Distinct Not Working in Case Select Oracle SQL. The following MySQL statement will fetch the rows from the table book_mast which contain books not written in English and the price of the books are 1or 200. Except that’s not what it does.