DataType Element (ASSL)
Defines the data type of the associated element.
Syntax
<DataItem> <!-- or Measure -->
...
<DataType>...</DataType>
...
</DataItem>
Element Characteristics
Characteristic |
Description |
|---|---|
Data type and length |
String (enumeration) |
Default value |
None |
Cardinality |
0-1: Optional element that can occur once and only once. |
Remarks
The values for DataType are defined in the System.Data.OleDb.OleDbType enumeration. However, only the enumeration values in the following table are valid in the DataType element.
Value |
Description |
|---|---|
BigInt |
A 64-bit signed integer. This data type maps to the Int64 data type in Microsoft .NET Framework and the DBTYPE_I8 data type in OLE DB. |
Bool |
A Boolean value. This data type maps to the Boolean data type in the .NET Framework and the DBTYPE_BOOL data type in OLE DB. |
Currency |
A currency value ranging from -263 (or -922,337,203,685,477.5808) to 263-1 (or +922,337,203,685,477.5807) with an accuracy to a ten-thousandth of a currency unit. This data type maps to the Decimal data type in the .NET Framework and the DBTYPE_CY data type in OLE DB. |
Date |
Date data, stored as a double-precision floating point number. The whole portion is the number of days since December 30, 1899, while the fractional portion is a fraction of a day. This data type maps to the DateTime data type in the .NET Framework and the DBTYPE_DATE data type in OLE DB. |
Double |
A double-precision floating point number within the range of -1.79E +308 through 1.79E +308. This data type maps to the Double data type in the .NET Framework and the DBTYPE_R8 data type in OLE DB. |
Integer |
A 32-bit signed integer. This data type maps to the Int32 data type in the .NET Framework and the DBTYPE_I4 data type in OLE DB. |
Single |
A single-precision floating point number within the range of -3.40E +38 through 3.40E +38. This data type maps to the Single data type in .NET Framework and the DBTYPE_R4 data type in OLE DB. |
SmallInt |
A 16-bit signed integer. This data type maps to the Int16 data type in the .NET Framework and the DBTYPE_I2 data type in OLE DB. |
TinyInt |
An 8-bit signed integer. This data type maps to the SByte data type in the .NET Framework and the DBTYPE_I1 data type in OLE DB. |
UnsignedBigInt |
A 64-bit unsigned integer. This data type maps to the UInt64 data type in .NET Framework and the DBTYPE_UI8 data type in OLE DB. |
UnsignedInt |
A 32-bit unsigned integer. This data type maps to the UInt32 data type in the .NET Framework and the DBTYPE_UI4 data type in OLE DB. |
UnsignedSmallInt |
A 16-bit unsigned integer. This data type maps to the UInt16 data type in the .NET Framework and the DBTYPE_UI2 data type in OLE DB. |
WChar |
A null-terminated stream of Unicode characters. This data type maps to the String data type in the .NET Framework and the DBTYPE_WSTR data type in OLE DB. |
Inherited |
The data type of the DataItem contained in the Source element of the Measure element. .gif "Note") Note
Applicable only to Measure elements.
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