The DBPROPSET_COLUMN property set contains the following properties.
| DBPROP_COL_AUTOINCREMENT | 
Type: VT_BOOL
Typical R/W: R/W
Notes: Specifies whether the values of the identity column are auto-incrementing. There can be only one auto-incrementing column per table. SQL Server Compact Edition supports the auto-increment attribute on DBTYPE_I8 and DBTYPE_I4 columns.
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| DBPROP_COL_DEFAULT | 
Type: Any
Typical R/W: R/W
Notes: Specifies the default value for this column. This may be a constant, an expression, or the getdate function. Queries are not supported as default values. String literals must be enclosed with single quotation marks, for example, 'myString'.
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| DBPROP_COL_FIXEDLENGTH | 
Type: VT_BOOL
Typical R/W: R/W
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| DBPROP_COL_INCREMENT | 
Type: VT_I4
Typical R/W: R/W
Notes: Only used if auto-increment is VARIANT_TRUE, and can only be used on identity columns.
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| DBPROP_COL_ISLONG | 
Type: VT_BOOL
Typical R/W: R/W
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| DBPROP_COL_NULLABLE | 
Type: VT_BOOL
Typical R/W: R/W
Notes: SQL Server 2005 Compact Edition supports all types as nullable.
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| DBPROP_COL_SEED | 
Type: VT_I4
Typical R/W: R/W
Notes: Only used if auto-increment is VARIANT_TRUE, and can only be used on identity columns.
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