SQL Query Processing
SQL Query Processing Let us discuss what happens inside oracle when we write a SQL query and press the green color...
SQL Query Processing Let us discuss what happens inside oracle when we write a SQL query and press the green color...
Setup for ROLLUP and CUBE ROLLUP and CUBE are used very rarely in our traditional OLTP systems.But it is always...
GROUP BY Functions in Oracle We will have an overview of the functionality available for aggregation in data warehouses Setup The...
PIVOT Function in Oracle The Oracle PIVOT clause allows you to write a cross-tabulation query starting in Oracle 11g. This...
Cardinality in Oracle Cardinality means the number of something but it gets used in a variety of contexts. It depends...
Partitioned Tables And Indexes Maintenance of large tables and indexes can become very time and resource consuming. At the same...
Lets talk about how to use RANK, DENSE_RANK, FIRST and LAST Analytic Functions. The concept is very very simple. RANK,...