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.
You should master SQL next. Here's a general guide. Buy a book, find a good web tutorial (Try W3Schools for a light tutorial http://www.w3schools.com/sql/sql... or Big Data University for a more involved one: http://bigdatauniversity.com ), or ask an analyst friend to show you the basics for an hour. I showed a friend last week--you'll pick it up quickly.