Sequencing In Oracle: Types, Examples, And Best Practices
Oracle sequencing explained: Sequence objects, ORDER BY, ROWNUM, ranking functions, PL/SQL sequences, analytic functions & trigger sequencing for efficient data manipulation.
In Oracle, "sequencing" can be applied in different contexts depending on the type of operation or function you're performing. Below are various types of sequencing used in Oracle, along with simple examples: Sequence Objects A sequence is an Oracle object used to generate unique numbers in sequence, typically for use in primary keys or similar purposes. Example: Creating a Sequence CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1; This will create a sequence starting from 1 and incrementing by 1 every time it is called. Example: Using a Sequence INSERT INTO employees (employee_id, first_...