ADO CommandType- Eigenschaft
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Die CommandType-Eigenschaft legt einen CommandTypeEnum -Wert fest oder gibt ihn zurück, der den Typ des Command-Objekts definiert. Standard ist adCmdUnknown.
Wenn Sie den Typ nicht angeben, muss ADO den Anbieter kontaktieren, um den Typ des Befehls zu ermitteln. Wenn Sie jedoch den Typ angeben, kann ADO den Befehl schneller verarbeiten.
Syntax
objcommand.CommandType
Beispiel
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set comm=Server.CreateObject("ADODB.Command")
comm.CommandText="orders"
comm.CommandType=adCmdTable
response.write(comm.CommandType)
conn.close
%>
CommandTypeEnum-Werte
| Constant | Value | Description |
|---|---|---|
| adCmdUnspecified | -1 | Does not specify the command type argument. |
| adCmdText | 1 | Evaluates CommandText as a textual definition of a command or stored procedure call. |
| adCmdTable | 2 | Evaluates CommandText as a table name whose columns are all returned by an internally generated SQL query. |
| adCmdStoredProc | 4 | Evaluates CommandText as a stored procedure name. |
| adCmdUnknown | 8 | Default. Indicates that the type of command in the CommandText property is not known. |
| adCmdFile | 256 | Evaluates CommandText as the file name of a persistently stored Recordset. Used with Recordset.Open or Requery only. |
| adCmdTableDirect | 512 | Evaluates CommandText as a table name whose columns are all returned. Used with Recordset.Open or Requery only. To use the Seek method, the Recordset must be opened with adCmdTableDirect. This value cannot be combined with the ExecuteOptionEnum value adAsyncExecute. |
❮ Vollständige Befehlsobjektreferenz