Improved SQL functions for querying and manipulating JSON data directly within the relational framework.
SELECT employee_id, name, department FROM employees ORDER BY employee_id; oracle sql 19c pdf
SELECT * FROM orders AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '1' HOUR) WHERE order_id = 500; Improved SQL functions for querying and manipulating JSON
: While DUAL is still available, many internal functions and calculations are more efficient in 19c due to improved expression evaluation. department FROM employees ORDER BY employee_id
A condensed PDF perfect for beginners who need to get up to speed quickly on SQL and PL/SQL.