Top "Count" questions

php count the number of strings after exploded

Here is my code <?php $string = 'a|b|c|d|e|f'; $tags = explode('|' , $string); foreach($tags …

php arrays count explode

Mysql count performance on very big tables

I have a table with more than 100 millions rows in Innodb. I have to know if there is more than 5000 …

mysql sql count query-optimization database-performance

Counting number of joined rows in left join

I'm trying to write an aggregate query in SQL which returns the count of all records joined to a given …

sql oracle join count left-join

Python/Pandas: counting the number of missing/NaN in each row

I've got a dataset with a big number of rows. Some of the values are NaN, like this: In [91]: df …

pandas count row dataframe nan

Python count items in dict value that is a list

Python 3.3, a dictionary with key-value pairs in this form. d = {'T1': ['eggs', 'bacon', 'sausage']} The values are lists of …

python list dictionary count python-3.3

Count number of columns by a condition (>) for each row

I am trying to work out for each row of a matrix how many columns have values greater than a …

r count col

Finding occurrences of a word in a string in python 3

I'm trying to find the number of occurrences of a word in a string. word = "dog" str1 = "the dogs barked" …

python string count match

Count expression SSRS Report

Trying to count all rows in a column where column=Yes I have two columns in my report Accepted and …

reporting-services count expression ssrs-expression

SQL distinct and count

I have a query where I want to get distinct dates, the phone numbers associated with those dates, and a …

sql count aggregate distinct

Python Count Elements in a List of Objects with Matching Attributes

I am trying to find a simple and fast way of counting the number of Objects in a list that …

python list object attributes count