Using Cursors in SQL Server 2000 (ZT) 转自:http://blog.joycode.com/mvm/archive/2005/09/07/63084.aspx In a lot of places, cursors are used to traverse through a recordset. However, a lot of cursors are defined like
Close a cursorCLOSEcursor_nameDEALLOCATESQLCloseCursor The server cursors implemented in SQL Server support the functionality of the ODBC cursor model. The SQL Server Native Client driver uses server cursors to support the cursor functionality of the ODBC API....
SQLSetPos Close a cursor CLOSE cursor_name DEALLOCATE SQLCloseCursor The server cursors implemented in SQL Server support the functionality of the ODBC cursor model. The SQL Server Native Client driver uses server cursors to support the cursor functionality of the ODBC API. In This Section How Cu...
In this article In This Section See Also New: 14 April 2006To use cursors, you must first set connection and statement attributes that control ODBC cursor behavior. Cursors allow an application to retrieve multiple rows on each fetch and execute UPDATE, INSERT, or DELETE statements at the ...
SQLWCHAR *connString = L"Driver={ODBC Driver 18 for SQL Server};Server={myServer};Encrypt=yes;Trusted_Connection=yes;ColumnEncryption=Enabled;"; Always Encrypted may also be enabled in the DSN configuration, using the same key and value (which will be overridden by the connection string sett...
The JDBC driver does not support the use of CURSOR, SQLVARIANT, TABLE, and TIMESTAMP SQL Server data types as OUT parameters. As an example, create the following stored procedure in the AdventureWorks2022 sample database: SQL CREATEPROCEDUREGetImmediateManager @employeeIDINT, @managerIDINTOUTPUTAS...
In previous releases, the application had to use a server cursor to avoid an OutOfMemoryError. Adaptive buffering provides the ability to do a forward-only read-only pass of an arbitrarily large result set without requiring a server cursor. The query produces very large SQLServerResultSet ...
"Choosing a Cursor Option" "SQLExecDirect vs. SQLPrepare/SQLExecute" "Batching Procedure Calls" "Text and Image Data" Architecture The Microsoft SQL Server ODBC driver uses the standard SQL Server components for communicating from a client application to the database server. Rather than being implem...
Use a server-side cursor in T-SQL. Let us examine the three alternatives in the context of a simple aggregation function which calculates the product of a given set of values. Example: Product Implemented as a User-Defined Aggregate Function Here is the code for this task written as a user...
use the SQLSetPos function call to run a common table expression (CTE) query to retrieve spatial data, the function call can't set the cursor position, and you receive an "Invalid cursor position" error message...