Author: Dev

The CREATE TABLE statement in Oracle PL/SQL is a powerful and essential command used to define and create a new table in a relational database. Tables are fundamental database objects that store data in a structured format, allowing for efficient data retrieval and manipulation. The CREATE TABLE statement enables you to specify the table’s structure,…(Continue Reading)

In Oracle PL/SQL, the CUBE operation is used in conjunction with the GROUP BY clause to generate a result set that includes subtotals and grand totals. It allows you to perform multi-dimensional analysis on your data, producing a result set that includes various levels of aggregation. The CUBE operation is particularly useful when you want…(Continue Reading)

In Oracle PL/SQL, the ROLLUP is a powerful feature that is used in conjunction with the GROUP BY clause to generate subtotals and grand totals in result sets. It helps in simplifying the process of producing summary reports from large sets of data. The ROLLUP operation produces a result set that represents the subtotals of…(Continue Reading)

In Oracle PL/SQL, the UNPIVOT operation is used to transform columns into rows. This is particularly useful when you have data stored in a pivot format, where values from multiple columns need to be turned into rows under a common column. UNPIVOT can be employed to rotate the data in a way that makes it…(Continue Reading)

In Oracle PL/SQL, the PIVOT operation is used to transpose rows into columns, transforming the result of a SELECT statement into a more readable and compact format. This is particularly useful when you want to pivot data based on a specific column’s values. The PIVOT clause simplifies the process of rotating data in SQL queries.…(Continue Reading)