SQLite format 3@  um5tablegradesgradesCREATE TABLE grades ( student_id STRING, class_id STRING, points FLOAT )XtableclassesclassesCREATE TABLE classes ( class_id STRING, name STRING )ctablestudentsstudentsCREATE TABLE students ( student_id STRING, name STRING, birthyear INTEGER, gender STRING ) GooberMBairdMKadjoM 3EE231Digital Electronics%ECON490IT Economics EE231@EE231@ECON490@ECON490?