OdbcType Enum
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Specifies the data type of a field, property, for use in an OdbcParameter.
public enum class OdbcTypepublic enum OdbcTypetype OdbcType = Public Enum OdbcType- Inheritance
Fields
| Name | Value | Description |
|---|---|---|
| BigInt | 1 | Exact numeric value with precision 19 (if signed) or 20 (if unsigned) and scale 0 (signed: -2[63] <= n <= 2[63] - 1, unsigned:0 <= n <= 2[64] - 1) (SQL_BIGINT). This maps to Int64. |
| Binary | 2 | A stream of binary data (SQL_BINARY). This maps to an Array of type Byte. |
| Bit | 3 | Single bit binary data (SQL_BIT). This maps to Boolean. |
| Char | 4 | A fixed-length character string (SQL_CHAR). This maps to String. |
| DateTime | 5 | Date data in the format yyyymmddhhmmss (SQL_TYPE_TIMESTAMP). This maps to DateTime. |
| Decimal | 6 | Signed, exact, numeric value with a precision of at least p and scale s, where 1 <= p <= 15 and s <= p. The maximum precision is driver-specific (SQL_DECIMAL). This maps to Decimal. |
| Numeric | 7 | Signed, exact, numeric value with a precision p and scale s, where 1 <= p <= 15, and s <= p (SQL_NUMERIC). This maps to Decimal. |
| Double | 8 | Signed, approximate, numeric value with a binary precision 53 (zero or absolute value 10[-308] to 10[308]) (SQL_DOUBLE). This maps to Double. |
| Image | 9 | Variable length binary data. Maximum length is data source-dependent (SQL_LONGVARBINARY). This maps to an Array of type Byte. |
| Int | 10 | Exact numeric value with precision 10 and scale 0 (signed: -2[31] <= n <= 2[31] - 1, unsigned:0 <= n <= 2[32] - 1) (SQL_INTEGER). This maps to Int32. |
| NChar | 11 | Unicode character string of fixed string length (SQL_WCHAR). This maps to String. |
| NText | 12 | Unicode variable-length character data. Maximum length is data source-dependent. (SQL_WLONGVARCHAR). This maps to String. |
| NVarChar | 13 | A variable-length stream of Unicode characters (SQL_WVARCHAR). This maps to String. |
| Real | 14 | Signed, approximate, numeric value with a binary precision 24 (zero or absolute value 10[-38] to 10[38]).(SQL_REAL). This maps to Single. |
| UniqueIdentifier | 15 | A fixed-length GUID (SQL_GUID). This maps to Guid. |
| SmallDateTime | 16 | Data and time data in the format yyyymmddhhmmss (SQL_TYPE_TIMESTAMP). This maps to DateTime. |
| SmallInt | 17 | Exact numeric value with precision 5 and scale 0 (signed: -32,768 <= n <= 32,767, unsigned: 0 <= n <= 65,535) (SQL_SMALLINT). This maps to Int16. |
| Text | 18 | Variable length character data. Maximum length is data source-dependent (SQL_LONGVARCHAR). This maps to String. |
| Timestamp | 19 | A stream of binary data (SQL_BINARY). This maps to an Array of type Byte. |
| TinyInt | 20 | Exact numeric value with precision 3 and scale 0 (signed: -128 <= n <= 127, unsigned:0 <= n <= 255)(SQL_TINYINT). This maps to Byte. |
| VarBinary | 21 | Variable length binary. The maximum is set by the user (SQL_VARBINARY). This maps to an Array of type Byte. |
| VarChar | 22 | A variable-length stream character string (SQL_CHAR). This maps to String. |
| Date | 23 | Date data in the format yyyymmdd (SQL_TYPE_DATE). This maps to DateTime. |
| Time | 24 | Date data in the format hhmmss (SQL_TYPE_TIMES). This maps to DateTime. |
Remarks
The following table shows mappings between OdbcType data types, ODBC data types (shown in parentheses), and .NET Framework types.
