ADO CreateParameter 메서드
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CreateParameter 메서드는 이름, 유형, 방향, 크기 및 값과 같은 지정된 속성을 포함하는 Parameter 개체를 만들고 반환합니다.
참고: 이 방법은 새 매개변수를 컬렉션에 자동으로 추가하지 않습니다. 매개변수 컬렉션에 매개변수를 추가하려면 Append 속성을 사용하십시오.
통사론
Set objparameter=objcommand.CreateParameter
(name,type,direction,size,value)
| Parameter | Description |
|---|---|
| name | Optional. The name of the Parameter object. |
| type | Optional. One of the DataTypeEnum constants that specifies the data type for the Parameter object. Default is adEmpty. If you choose a variable-length data type, you will also need to specify the Size parameter or the Size property. If you specify adDecimal or adNumeric data type, you must also set the NumericScale and the Precision properties of the Parameter object. |
| direction | Optional. One of the ParameterDirectionEnum constants that defines the direction of the Parameter object. Default is adParamInput. |
| size | Optional. Specifies the length of a variable-length data type, if such a type was declared in the Type parameter. Default is zero. |
| value | Optional. The value of the Parameter object |
DataTypeEnum 값
Field, Parameter 또는 Property 개체의 데이터 유형을 지정합니다.
| Constant | Value | Description |
|---|---|---|
| adEmpty | 0 | No value |
| adSmallInt | 2 | A 2-byte signed integer. |
| adInteger | 3 | A 4-byte signed integer. |
| adSingle | 4 | A single-precision floating-point value. |
| adDouble | 5 | A double-precision floating-point value. |
| adCurrency | 6 | A currency value |
| adDate | 7 | The number of days since December 30, 1899 + the fraction of a day. |
| adBSTR | 8 | A null-terminated character string. |
| adIDispatch | 9 | A pointer to an IDispatch interface on a COM object. Note: Currently not supported by ADO. |
| adError | 10 | A 32-bit error code |
| adBoolean | 11 | A boolean value. |
| adVariant | 12 | An Automation Variant. Note: Currently not supported by ADO. |
| adIUnknown | 13 | A pointer to an IUnknown interface on a COM object. Note: Currently not supported by ADO. |
| adDecimal | 14 | An exact numeric value with a fixed precision and scale. |
| adTinyInt | 16 | A 1-byte signed integer. |
| adUnsignedTinyInt | 17 | A 1-byte unsigned integer. |
| adUnsignedSmallInt | 18 | A 2-byte unsigned integer. |
| adUnsignedInt | 19 | A 4-byte unsigned integer. |
| adBigInt | 20 | An 8-byte signed integer. |
| adUnsignedBigInt | 21 | An 8-byte unsigned integer. |
| adFileTime | 64 | The number of 100-nanosecond intervals since January 1,1601 |
| adGUID | 72 | A globally unique identifier (GUID) |
| adBinary | 128 | A binary value. |
| adChar | 129 | A string value. |
| adWChar | 130 | A null-terminated Unicode character string. |
| adNumeric | 131 | An exact numeric value with a fixed precision and scale. |
| adUserDefined | 132 | A user-defined variable. |
| adDBDate | 133 | A date value (yyyymmdd). |
| adDBTime | 134 | A time value (hhmmss). |
| adDBTimeStamp | 135 | A date/time stamp (yyyymmddhhmmss plus a fraction in billionths). |
| adChapter | 136 | A 4-byte chapter value that identifies rows in a child rowset |
| adPropVariant | 138 | An Automation PROPVARIANT. |
| adVarNumeric | 139 | A numeric value (Parameter object only). |
| adVarChar | 200 | A string value (Parameter object only). |
| adLongVarChar | 201 | A long string value. |
| adVarWChar | 202 | A null-terminated Unicode character string. |
| adLongVarWChar | 203 | A long null-terminated Unicode string value. |
| adVarBinary | 204 | A binary value (Parameter object only). |
| adLongVarBinary | 205 | A long binary value. |
| AdArray | 0x2000 | A flag value combined with another data type constant. Indicates an array of that other data type. |
ParameterDirectionEnum 값
Parameter가 입력 매개변수, 출력 매개변수, 입력 및 출력 매개변수 둘 다 또는 저장 프로시저의 반환 값을 나타내는지 여부를 지정합니다.
| Constant | Value | Description |
|---|---|---|
| adParamUnknown | 0 | Direction is unknown |
| adParamInput | 1 | Input parameter |
| adParamOutput | 2 | Output parameter |
| adParamInputOutput | 3 | Both input and output parameter |
| adParamReturnValue | 4 | Return value |
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