Provides access to members that migrate a dataset.
Product Availability
Description
The IDatasetMigration interface has methods for migrating the geometry, attribute and raster binary storage types of a dataset from an SDE data source. The migration path is based on parameters of the specified keyword.
Members
| Description | ||
|---|---|---|
 |
MigrateAttributeStorage | Migrate the attribute field storage. |
|
MigrateGeometryStorage | Migrate the geometry field storage. |
|
MigrateRasterStorage | Migrate the raster storage. |
|
MigrateStorage | Migrate all binary field storage. |
Remarks
An exclusive schema lock should be acquired for the dataset prior to calling any of this interface's methods. An exclusive schema lock can be acquired by using the ISchemaLock interface.
The IFeatureClassStorage interface can be used with an SDE feature class to determine the type of geometry storage being used. If the geometry is migrated to a new storage type, the feature class must be re-opened for the IFeatureClassStorage to return the new value.
Consult the topic "Data migration from one storage type to another" in the ArcGIS Help system prior to migration. There are special cases to be aware of; for example, migrating from SDEBINARY to GEOGRAPHY with SQL Server is not recommended for feature classes with Z or M values.
Valid geometry migration paths for SDE/Oracle are:
Long Raw to Blob (SDEBINARY to SDELOB)
Long Raw to ST_Geometry (SDEBINARY to ST_GEOMETRY)
Blob to ST_Geometry (SDELOB to ST_GEOMETRY)
SDO_Geometry to ST_Geometry (SDO_GEOMETRY to ST_GEOMETRY)
Valid geometry migration paths for SDE/SQL Server are:
SDEBINARY to GEOMETRY
SDEBINARY to GEOGRAPHY
OGCWKB to GEOMETRY
OGCWKB to GEOGRAPHY
Valid attribute migration paths for SDE/Oracle are:
Long Raw to Blob
Valid raster migration paths for SDE/Oracle are:
Long Raw to Blob
Long Raw to ST_Raster
Blob to ST_Raster
Valid raster migration paths for SDE/PostgreSQL are:
Binary to ST_Raster
Valid raster migration paths for SDE/SQL Server are:
Binary to ST_Raster