Metoda zapytania ADO
❮ Pełne odniesienie do obiektu zestawu rekordów
Metoda Requery aktualizuje dane w Recordset przez ponowne wykonanie zapytania, które utworzyło oryginalny Recordset.
Wskazówka: Użyj tej metody, aby odświeżyć całą zawartość zestawu rekordów.
Uwaga: Za pomocą tej metody wywołujesz metody Close i Open w jednym.
Składnia
objRecordset.Requery options
| Parameter | Description |
|---|---|
| options | Optional. Specifies how to execute this command. Can be an ExecuteOptionEnum value |
Wartości ExecuteOptionEnum
| Constant | Value | Description |
|---|---|---|
| adOptionUnspecified | -1 | Unspecified command |
| adAsyncExecute | 16 | The command should execute asynchronously. Cannot be combined with the CommandTypeEnum value adCmdTableDirect |
| adAsyncFetch | 32 | The remaining rows after the initial quantity specified in the CacheSize property should be retrieved asynchronously |
| adAsyncFetchNonBlocking | 64 | The main thread never blocks while retrieving. If the requested row has not been retrieved, the current row automatically moves to the end of the file. If you open a Recordset from a Stream containing a persistently stored Recordset, adAsyncFetchNonBlocking will not have an effect; the operation will be synchronous and blocking. adAsynchFetchNonBlocking has no effect when the adCmdTableDirect option is used to open the Recordset |
| adExecuteRecord | 512 | The CommandText is a command or stored procedure that returns a single row which should be returned as a Record object |
❮ Pełne odniesienie do obiektu zestawu rekordów