How to save a Json String in sqlite?

I have an sqlite database. The culum where I want to save my JsonString in, has the data type TEXT. Everytime I want to insert a dataset I get no error until I try to read it out again, then I get an error that my curser may be at the wrong place. But when instead of a json give a usual string everything works fine. Since I don´t really now what Symbels might be in my json, is there at all a way to put a json into an sqlite database? (It is a large json so I can´t really insert every value of it seperatly).

How can I save a JsonString else so that I can get I even if my application is closed?

I know I could put it in al file but since a database has a better structure and basiccly is a file too I would prefer to find a way working with the database.