Current recordset does not support updating locktype
Have you written something and would like to it published here? The CursorLocation property can only be set while the connection is closed, and the property will be inherited by any recordset objects that access their data through the given connection object. Forward-only cursor - Allows you to only scroll forward through the Recordset. We are always looking for interesting articles about MySQL! With a server-side cursor adUseServer , we have access to the adOpenDynamic and adOpenForwardOnly cursor types, and all four of the recordset lock types, which will be discussed below. In ADO, this object is the most important and the one used most often to manipulate data from a database. The different types and locations will be discussed in further detail below.
Not all providers support all methods or properties of the Recordset object. This is the only type of cursor allowed when you open a client-side Recordset object. This makes the static cursor more resource-intensive for the client and less resource-intensive for the server, as the result set is stored in the client's memory instead of the server's. Data changes by other users will still be visible. Immediate updating - all changes are written immediately to the database once you call the Update method. The different types and locations will be discussed in further detail below. This example demonstrates how to use the GetRows method. Client-side cursors also help decrease load on our MySQL server, since with a static cursor data is sent to the client and then the server has no further communications with the client. This allows your server to scale a lot better than with server-side cursors. On the Visual Basic side, I recommend you have service pack 5 installed for VB, which you can download here. It is not applicable to ADO. A Recordset object consist of records and columns fields. Your choice of cursor type and cursor location will affect what you are able to do with the data you retrieve, and how changes made to the data by other users are reflected in your copy of the data. Static cursor - Provides a static copy of a recordset for you to use to find data or generate reports. Forward-only cursor - Allows you to only scroll forward through the Recordset. Have you written something and would like to it published here? With a server-side cursor adUseServer , we have access to the adOpenDynamic and adOpenForwardOnly cursor types, and all four of the recordset lock types, which will be discussed below. In ADO, when we talk about cursors, we are essentially talking about a set of rows. Batch updating - the provider will cache multiple changes and then send them to the database with the UpdateBatch method. The client may communicate with the server to send changes back to the server. With a static cursor, the server will send the result set to the client, after which there will be no further communication from the server to the client. In addition, we have the ability to lock the data we are working on as we edit it, to make sure our changes are going to be posted to the database successfully. Related to the cursor location problem is the choice of cursor type and lock type. In addition, certain functionality, such as the RecordCount property of a Recordset and the GetChunk and Appendchunk function for handling BLOB data, will fail or return abnormal results when used with a server-side cursor. Dynamic cursor - Allows you to see additions, changes, and deletions by other users. The benefit of server-side cursors is that we gain access to the dynamic cursor type. In addition, the are 4 types of cursor:
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