Microsoft OLE DB 2.0 Programmers Reference and Data Access SDK (Microsoft Professional Editions)
| OLE DB Programmer's Reference |
Property group: Data Source Information
Property set: DBPROPSET_DATASOURCEINFO
Type: VT_I4
Typical R/W: R
Description: NULL Concatenation Behavior
Indicates how the data source object handles the concatenation of NULL-valued character data type columns with non–NULL-valued character data type columns. One of the following:
- DBPROPVAL_CB_NULL—The result is NULL valued.
- DBPROPVAL_CB_NON_NULL—The result is the concatenation of the non–NULL-valued column or columns.
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