Simple_README

There is the minimal version

WARNING, we are working without a supervisor so any erroneous inout or command might crash the server and we may have to restart from the beginning.
input:
c(mydb_serv).


STARTING the server.
mydb_serv:start().

Create an entry in the database ():

    mydb_serv:write(YourKey,YourValue).   (example:    mydb_serv:write(1,"Hello")  )

Read a value in the database ():

    mydb_serv:read(YourKey).             (example:    mydb_serv:read(1)  )

Update a value in the database ():

    mydb_serv:update(YourKey,YourValue)   (example:     mydb_serv:update(1,"World")  )


Delete a value in the database ():

    mydb_serv:delete(YourKey).             (example:    mydb_serv:delete(1)  )


Clear the database:

    mydb_serv:clear(). 




%NB we can still start it from the supervisor but a shell crash will kill the supervisor and our db:

STARTING the supervisor ( will start also start our db  ).
mydb_sup:start_link().

Create an entry in the database ():

    mydb_serv:write(YourKey,YourValue).   (example:    mydb_serv:write(1,"Hello")  )

Read a value in the database ():

    mydb_serv:read(YourKey).             (example:    mydb_serv:read(1)  )

Update a value in the database ():

    mydb_serv:update(YourKey,YourValue)   (example:     mydb_serv:update(1,"World")  )


Delete a value in the database ():

    mydb_serv:delete(YourKey).             (example:    mydb_serv:delete(1)  )


Clear the database:

    mydb_serv:clear(). 


NEW ADDITION: crash the database:

exit(whereis(mydb_serv),kill). (everything will work as there was nothing, you can try it with the version without supervisor to see the difference)