Once
the database window is open, the user can browse through the
contents of the EcoWin database by choosing either View…
> Query… > Clear & Select from the
menus or by pressing the ‘Query-Select’
button on the database window toolbar. This will open the
standard EcoWin Select series, which a user can use
to search for and select particular series for further action
in the same manner as would be done within other EcoWin products
such as EcoWin Pro or the EcoWin Pro Excel Add-in.
After
one or more series has been selected in Select series,
pressing the ‘OK’ button will
transfer the selected series back into the EViews database
window. This can be done multiple times, until a list of all
the series that the user wishes to work with has been built
up within the EViews database window. At this point Select
series can be closed using the ‘Cancel’
button.
Once
all the series of interest have been made available in the
database window, the user can then choose to move the data
associated with one or more of the selected series into an
EViews workfile or into another EViews database. All the standard
EViews methods are available, such as copy and paste into
an existing workfile or database using the right mouse menus,
creation of a new EViews workfile containing the data using
the ‘Export’ button, or importing
data into an existing EViews workfile using the Fetch
menu item from the workfile window.
The
user can return to the EcoWin Select series at any
time to make additional series available for use in the main
database window. Note that if the ‘Query Select’
button is pressed, the existing contents of the database window
will be cleared, while if the ‘Query Append
Select’ button if pressed, the existing contents
of the database window will be preserved.
As an alternative to the graphical interface,
once the mnemonic of a series within the EcoWin database is
known, a user can fetch the series directly by name from the
command line or within an EViews program. For example, a series
can be fetched into the current EViews workfile from a database
that is either currently open or has been added to the EViews
database registry, using the command:
fetch default::usa01006
Note
that the series name does not need to appear within the currently
open EcoWin database window for this command to be used. Other
commands such as ‘copy’ allow the name
associated with the series to be changed during the procedure,
as well as supporting the copying of series directly from
an EcoWin database to another EViews database.
If
an EcoWin database is going to be used frequently, it may
be worth adding an entry for it in the EViews database registry.
The EViews database registry can be accessed by choosing Options…
> Database Registry from the main EViews menus.
By pressing ‘Add New Entry’,
a new database can be added to the list. The procedure for
adding an EcoWin database to the registry is similar to that
discussed above for the File… > Open…
Database dialog. The Database/File Type
field should be set to ‘EcoWin Database’
and the ‘Database Name/Path’ field should
be set to default.
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