8 мая 2012 г. · To count the columns of your table precisely, you can get form information_schema.columns with passing your desired Database(Schema) Name and Table Name.

20 мая 2016 г. · I'm trying to figure out how to count the values in more than one column. It seem the first COUNT I do gives me the correct results but everything I've tried ...

11 нояб. 2013 г. · I could use MYSQL to get a number for each column which would be equal to the number of rows that had a value of '1'.

4 апр. 2013 г. · I have the following db table, and I would like to be able to count the instance of sales of certain products per salesperson.

6 мар. 2019 г. · The topic is about displaying "count number of occurrences of field value with join data" so having count(events.venue_id) > 0 populate the count.

24 мар. 2010 г. · All rows in a table have a type field which is either 0 or 1. I need to count rows with 0 and with 1 in one query.

19 окт. 2019 г. · I have this query: SELECT count(password) as normal, count(fb_id) as fb, count(google_id) as google, count(linkedin_id) as linkedin FROM `users`

26 июн. 2017 г. · I have a table where I need to return two things (preferably with one query): 1) the count of unique ids per date 2) the number of rows where otherfield = "-" ...

15 окт. 2015 г. · I would like to run a query that brings back each record that meets a certain criteria, as well as give me total number of times that occurs in my table.

16 мар. 2014 г. · COUNT(field) does not count the number of true values. It counts the number of non-NULL values. If the field is a BOOLEAN NOT NULL , or simply ...