Opening database file from within SQLite command-line shell

Question

I\'m using the SQLite Command Line Shell. As documented, I can open a database by supplying it as an argument to the executable:

sqlite3 data.db

Answer 1

create different db files using
      >sqlite3 test1.db
sqlite> create table test1 (name text);
sqlite> insert into test1 values('sourav');
sqlite>.exit
      >sqlite3 test2.db
sqlite> create table test2 (eid integer);
sqlite> insert into test2 values (6);
sqlite>.exit
      >sqlite
SQLite version 3.8.5 2014-06-04 14:06:34
Enter ".help" for usage hints.
Connected to a transient in-memory database.
Use ".open FILENAME" to reopen on a persistent database.
sqlite> .open test1.db
sqlite> select * from test1;
sourav
sqlite> .open test2.db
sqlite> select * from test1;
Error: no such table: test1
sqlite> select * from test2;
6
sqlite> .exit
      >

Thank YOU.