id,title,slug,link,category_id,tags,type_id,image,provider_id,publisher_id,university_id,institution_id,duration,cost_id,certificate,difficulty,description,syllabus,pages,added_date,published_date,bad_link,popular 47597,"Oracle SQL Performance Tuning",oracle-sql-performance-tuning-47597,,7,,1,https://d3f1iyfxxz8i1e.cloudfront.net/courses/course_image/16f36575c9ac.jpg,3,,,47,"7 hours 44 minutes",2,"Paid Certificate",," ",,,2024-06-24,,no,