What made you want to look up vouchsafe? Include any comments and questions you have about this word.
SQL training is offered as non-degree, continuing education courses or as part of the curricula in computer related degree programs, such as computer science, engineering, programming and information technology.
Codecademy has an amazing course on SQL. I have extracted an answer of your question from the course Learn SQL. Happy learning! SQL, 'Structured Query Language', is a programming language designed to manage data stored in relational databases.