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4
In the ODBC Setup dialog, click OK to export to the same database.
Editing the Database After Export
Do not edit data in the database columns exported by Revit Architecture. Any changes to those columns
are overwritten the next time the project is exported.
However, you can add columns to the tables created by Revit Architecture. The next time the project is
exported, any data in the added columns is preserved.
Table Relationships Within the Database
When Revit Architecture creates database tables during ODBC export, it adds relationships to the data tables
using primary keys and reference values. In relational databases, a primary key is a unique value that identifies
a record (row) in a table of the database. Reference values are columns in a table that refer to other tables.
NOTE
Database programs (such as Microsoft
®
Access) can interpret the table relationships. In spreadsheet programs
like Microsoft
®
Excel, relationships are not supported, so Revit Architecture creates simple, unrelated tables.
The primary key in each element table is the column labeled “Id”. The following table illustrates how primary
keys and reference values create relationships among tables in the database.
Corresponds to...
Column (Field) of a Door Instance Table
None. This is the unique identifier for this instance of a door.
Id
Id column of the door Types table
Type Id
Id column of the Levels table
Level
Id column of the Rooms table
Room
Id column of the Key Schedules table
Key schedule
The primary key in the Assembly Codes table is the Assembly Code column. The Assembly Code column in
type tables references the Assembly Code column in the Assembly Codes table.
Revit Architecture does not create a reference for the Host Id column because the host may be a wall, floor,
roof, or other such host, so there is no unique table to reference.
The relationships between tables are established only when Revit Architecture first creates the tables; if you
use Revit Architecture to re-export to an existing database, no new relationships are created.
Exporting a View to an Image File
When you export an image, Revit Architecture prints any view directly to a raster image file. You can then
use this image for online presentations or printed materials.
To export a view to an image file
1
Click
➤
Export
➤
Images and Animations
➤
Image.
2
In the Export Image dialog, click Change to change the default path and file name for the image,
if desired.
1364 | Chapter 24 Interoperability
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Страница 229: ...Schedule Field Formatting Calculating Totals Specifying Schedule Properties 187 ...
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Страница 427: ...Defining the first scale vector Defining the second scale vector Resizing Graphically 385 ...
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