Command Reference : External Connectivity : Reading EViews Data
  
Reading EViews Data
 
The OLEDB Driver
The Excel Add-in
EViews Database Objects (EDO) Library
EViews offers a variety of ways for you to access data stored in EViews workfiles (WF1) and EViews databases (EDB) from external sources.
The EViews OLEDB driver provides an easy way for OLEDB-aware clients or custom programs to read EViews data
Alternatively, the EViews Microsoft Excel Add-in allows users to fetch and link to EViews data located in workfiles and databases. The Add-in offers an easy-to-use interface to OLEDB for reading EViews data from within Excel.
Lastly, you may use the EViews Database Objects Library to access EViews data from within an external application.
The OLEDB Driver
The EViews OLEDB driver is automatically installed and registered on your computer when you install EViews. Once installed, you may use OLEDB-aware clients or custom programs to read series, vector, and matrix objects directly from EViews workfiles and databases.
See “The OLEDB Driver” for discussion. For additional details, see the Using the EViews OLEDB Driver whitepaper available from our website www.eviews.com/download/download.html.
The Excel Add-in
The EViews Excel Add-in offers a simple interface for fetching and linking to data stored in EViews workfiles and databases from within Microsoft Excel (2000 and later).
See “The Excel Add-in” for discussion. For additional details, see the Using the EViews OLEDB Driver whitepaper available from our website www.eviews.com/download/download.html.
EViews Database Objects (EDO) Library
The EViews Database Objects (EDO) Library is an EViews Enterprise Edition feature that provides access to data objects held inside EViews databases and workfiles from within an external application.
The library consists of a set of COM objects exported by EViews that can easily be used in a variety of development environments such as Microsoft .NET and Visual Basic for Applications (VBA).
The EDO API provides full read and write access to EViews databases, as well as read-only access to EViews workfiles. The interface provides access to both the observation values and the attributes of an object. In contrast, the EViews OLEDB interface “The OLEDB Driver” offers data reading support but not write operations nor object attributes.
The EDO library supports reading and writing of the following EViews data objects:
Numeric series (including series containing dates)
Alpha series (containing character data)
Scalars
Vectors
Matrices
Strings
String Vectors
The library does not currently support access to data within structured EViews objects such as equations or models.
Use of the EDO library requires that a machine is registered with a valid EViews Enterprise Version license.
For additional details, see the EViews Data Objects Library whitepaper, available from our website www.eviews.com/download/download.html.