python if-statement with IndentationError

I have wrote a function to get commands in my database and now I am trying to write a function with more specify detail to enter to my database.But there is an error when I add a elif statement

Before:(Success)(ps :user is going to input function of the command first, if user input "switch" in the device buttom , he will get commands from my switch table, else he will get commands from router"):

def readciscodevice(function, device):
        conn = sqlite3.connect('server.db')
        cur = conn.cursor()
        if device == "switch":
                cur.execute(
                        "SELECT DISTINCT command FROM switch WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read
        elif device == "router":
                cur.execute(
                        "SELECT DISTINCT command FROM router WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read;
a = input("function:")
b = input("device:")
for result in readciscodevice(a,b):
        print(result[0])

Then, I am trying to create a table called "showcommand" as show commands do not need to press "configure terminal" so I will make one more if statement but it seems not working...

After I add a if statement:

def readciscodevice(function, device):
        conn = sqlite3.connect('server.db')
        cur = conn.cursor()
        if device == "switch":
                cur.execute(
                        "SELECT DISTINCT command FROM switch WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read
        elif device == "router":
                cur.execute(
                        "SELECT DISTINCT command FROM router WHERE   function =? or function='configure terminal' or function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read;
        elif device == "showcommand":
                 cur.execute(
                        "SELECT DISTINCT command FROM showcommand WHERE   function =? or  function='enable'  ORDER BY key ASC",
                        (function,))
                read = cur.fetchall()
                return read;


a = input("function:")
b = input("device:")
for result in readciscodevice(a,b):
        print(result[0])

The main error(which is int my last elif-statement[showcommand]) :

read = cur.fetchall()
IndentationError: unindent does not match any outer indentation level

and return read;

Trailing semicolon in the statement less... (Ctrl+F1) 
This inspection detects trailing semicolons in statements.

I dun know what is going on? It looks no any problem in my mind but the problem is real. Thank you for helping!