Find out how to count the total, distinct, conditional, and grouped rows in SQL. Learn how to use the COUNT function in SQL to count records in different ways. Agree & Join LinkedIn ...

In my daily use of SQL queries, aggregate functions are used to perform calculations on a set of values, returning a single value. Common examples include SUM, AVG, COUNT, MIN, and MAX.

Approximate query processing (available since Oracle Database 12c Release 1) aims to deliver faster results for these queries. The approximate results are not identical to the exact results but they ...

Use Count to count the number of records in an underlying query. For example, you could use Count to count the number of orders shipped to a particular country or region.. Although expr can perform a ...