The ".open" command opens a new database connection, after first closing thepreviously opened database command. In its simplest form, the ".open" command merelyinvokes sqlite3_open() on the file named as its argument. Use the name ":memory:"to open a new in-memory database that disappears when the CLI exits or when the".open" command is run again.Or use no name to open a private, temporary on-disk database whichwill also disappear upon exit or use of ".open".