APPROX_COUNT_DISTINCT( expression ) evaluates an expression for each row in a group, and returns the approximate number of unique non-null values in a group. This function is designed to provide ...

The partition_by_clause divides the result set produced by the FROM clause into partitions to which the COUNT_BIG function is applied. If not specified, the function treats all rows of the query ...

In my previous articles we learned how to perform crud operation using mysqli procedural and object oriented style. on performing crud operations, the data of mysql table are affected. this article ...

The Count function helps you easily create a query that, based on any criteria, sums up the number of Access records you have. Here's how to use it.

Hello all! I have a MySQL query that is giving me the results that I want, but I'm having difficulty displaying the results in PHP. Here is my SQL statement: SELECT `tkid`,COUNT(*) FROM `xd2e ...