The getRow method is supported by TYPE_FORWARD_ONLY, TYPE_SS_DIRECT_FORWARD_ONLY, TYPE_SS_SERVER_CURSOR_FORWARD_ONLY, TYPE_SS_SCROLL_KEYSET, and TYPE_SS_SCROLL_STATIC cursors only. The getRow method with all forward-only cursor types returns the number of rows read so far through the curso...
Cursor Types When you create a result set with sqlsrv_query or with sqlsrv_prepare, you can specify the type of cursor. By default, a forward-only cursor is used, which lets you move one row at a time starting at the first row of the result set until you reach the end of the res...
ODBC defines four cursor types supported by Microsoft SQL Server and the SQL Native Client ODBC driver. These cursors vary in their ability to detect changes to the result set and in the resources they consume, such as memory and space intempdb. A cursor can detect changes to rows only when...
CursorTypes Equivalent IBM® Data Server Provider for .NET connection string keyword N/A db2dsdriver.cfgconfiguration syntax <parameter name="AllowedCursorTypes" value="0|1|2|3|4|5|6|7"/> Default setting: 如果伺服器支援正向、靜態、keyset-driven 及動態游標,則支援它們。
A weak REF CURSOR type does not specify a return type. The PL/SQL compiler accepts weakly typed cursor variables in any queries. Weak REF CURSOR types are interchangeable; therefore, instead of creating weak REF CURSOR types, you can use the predefined type weak cursor type SYS_REFCURSOR.Weak...
An enumeration of cursor types.Since: 3.0 MongoDB documentation OP_QUERYEnum Constant Summary Enum Constants Enum ConstantDescription NonTailable A non-tailable cursor. Tailable Tailable means the cursor is not closed when the last data is retrieved. TailableAwait A tailable cursor with a built-in ...
Spécifie les types de pointeurs intégrés. C# Copie public enum CursorType Héritage Object ValueType Enum CursorType Champs Développer la table AppStarting 3 Flèche standard accompagnée d'un petit pointeur en forme de sablier. Arrow 2 Pointeur en forme de flèche standard. ArrowCD 27 Po...
Static cursors consume the most resources because they duplicate the data. See Also Concepts Types of Cursors Cursors and Locking Implicit Cursor Conversions Updating Keyset-driven Cursors Help and Information Getting SQL Server Compact Edition Assistance...
Cursor types and challenges: SQL Server offers various cursor types: STATIC, FAST_FORWARD, DYNAMIC, and KEYSET. Their misuse, primarily due to a misunderstanding of set operations, can lead to performance issues and table locking. Cursors vs. alternatives: ...
Specifies the type of cursor used in a Recordset object.展開資料表 ConstantValueDescription adOpenDynamic 2 Uses a dynamic cursor. Additions, changes, and deletions by other users are visible, and all types of movement through the Recordset are allowed, except for bookmarks, if the provider doesn...