Author: Dev

In Oracle PL/SQL, the ALTER TABLE statement is used to modify the structure of an existing table. This statement allows you to add, modify, or drop columns, as well as make various other changes to the table’s structure. The ALTER TABLE statement is a powerful tool for database administrators and developers to adapt database schemas…(Continue Reading)

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)