Supporting different levels of visibility to changes made to the database data by other users that is presented in the result set. Note For a full description of the SQL Server cursor types, seeType of Cursors. The JDBC specification provides support for forward-only and scrollable cursors that...
The SQLSRV driver lets you create a result set with rows that you can access in any order, depending on the cursor type. This topic will discuss client-side (buffered) and server-side (unbuffered) cursors. Cursor Types When you create a result set withsqlsrv_queryor withsqlsrv_prepare, ...
適用対象:SQL ServerAzure SQL DatabaseAzure SQL Managed Instance カーソルへの参照を含む、変数またはストアド プロシージャの OUTPUT パラメーターのデータ型。 注釈 cursor型の変数とパラメーターを参照できる操作は次のとおりです。 DECLARE@local_variableおよび SET@local_variableステートメン...
ODBC defines four cursor types supported by Microsoft SQL Server and the SQL Server 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 on...
The first form of theDECLARE CURSORstatement uses the ISO syntax for declaring cursor behaviors. The second form ofDECLARE CURSORuses Transact-SQL extensions that allow you to define cursors using the same cursor types used in the database API cursor functions of ODBC or ADO. ...
The first form of theDECLARE CURSORstatement uses the ISO syntax for declaring cursor behaviors. The second form ofDECLARE CURSORuses Transact-SQL extensions that allow you to define cursors using the same cursor types used in the database API cursor functions of ODBC or ADO. ...
0x8000CHECK_ACCEPTED_TYPES 0x10000KEYSET_ACCEPTABLE 0x20000DYNAMIC_ACCEPTABLE 0x40000FORWARD_ONLY_ACCEPTABLE 0x80000STATIC_ACCEPTABLE 0x100000FAST_FORWARD_ACCEPTABLE 由於要求的選項可能不適用於語句所定義的數據指標,因此此參數可做為輸入和輸出。 在這種情況下,SQL Server 會指派適當的類型,並修改...
当然可以。在SQL中,CURSOR是一种用于处理查询结果集的工具,它可以让你在查询结果集中逐行浏览和处理数据。使用CURSOR,你可以访问上一行的值,并在当前行的处理中使用它。 以下是一个使用CURSOR检索上一行值的示例: 代码语言:sql 复制 DECLARE @prev_value INT; DECLARE @current_value INT; DECLARE cursor_name ...
it stores the result set and processing information in an unnamedprivate SQL area. A pointer to this unnamed area, called acursor, lets youretrieve the rows of the result set one at a time.Cursor attributesreturn information about the state of the cursor.游标是SQL的一个内存工作区,由系统或用...
SQL_CUR_USE_ODBC When this option is set with the SQL Server Native Client ODBC driver, the ODBC cursor library overrides the SQL Server Native Client ODBC driver's native cursor support. Only the cursor types supported by the cursor library can be used for the connection; server cursors can...