I need to fetch all records in netsuite each table/object. For that I am writting code in python where I will pass the object individually in loop, where it should call each table/object and get all records in it as json resultset. lets say if there are 150+ objects(Account, etc..), each object in loop need to get all records in respective objects and return the result as json. What is the best way to implement this kind of requirement. Kindly advice?

Pay for ODBC access, or do a full account CSV export, or some other sensible way. What you are doing seems.... misguided. Certainly wouldn’t use JSON for such a large data set

@Munish Singla, there's a better way ... with Tactical Connect. Reach out to @Josh_SatoriReporting for more details