SAP Sybase SQL is a relational database management system that provides highly-secure and scalable data management solutions for enterprises. It allows businesses to effectively store, manage, and analyze large amounts of data in real-time. SAP Sybase SQL offers features such as performance optimization, data replication, backup and recovery, and high availability to ensure data consistency and reliability. Knowledge in SAP Sybase SQL is highly sought-after by organizations looking to enhance their data-driven decision-making processes.