Under the background of industrial digital transformation, database technology, as a key area of information technology innovation, is crucial for talent cultivation and industry chain security. Enterprises urgently need high-quality talents with practical skills and the ability to solve complex problems. However, current MySQL Database courses in vocational colleges face challenges such as disconnection between teaching content and industry needs, single-dimensional evaluation mechanisms, and superficial integration of ideological and political education. Therefore, this paper proposes a teaching model of "four-dimensional driving, dual-chain integration", based on a project-based teaching system integrated with job training, competitions, and certifications, guided by a "three-stage, four-dimension, six-phase, seven-cultivation" teaching approach, supported by a "project-based, task-driven, capability-enhancing" teaching content system, led by a "three-lines, four-stage" ideological and political education system, and ensured by a comprehensive evaluation and resource system. Through the implementation of this model, students' mastery of core knowledge and ability to solve complex problems have significantly improved, cultivating a rigorous technical style, enhanced awareness of data security, ethical decision-making, and cultural confidence.