Ref Cursors A cursor references a result set. The REF CURSOR allows you to pass a cursor reference from one PL/SQL program unit to another. In other words, it allows you to create a variable that will receive a cursor and enable access to its result set,but in this blog I am giving ...
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You should explicitly open and close a cursor before and after use. Example: Fetching Multiple Rows With a Cursor in PL/SQL shows examples of the use of a cursor to process multiple rows in a table. The FETCH statement retrieves the rows in the result set one at a time. What can a ...
cursor type and then execute a Transact-SQL statement that is not supported by server cursors of the type requested. Microsoft SQL Server returns an error that indicates the cursor type has changed. This conversion is called implicit cursor conversion, and is sometimes referred to as cursor ...
HOME Oracle PL/SQL PL SQL Data Type RECORD Types Introduction An implicit record declaration uses an existing table, view, or cursor as a reference. You can reference the existing record type of the employee, emp%ROWTYPE. Using this approach, you're always in sync with the database ...
CursorImplicitConversion 事件類別說明資料指標隱含轉換事件,此類事件發生於應用程式發展介面 (API) 或 Transact-SQL 資料指標。當 SQL Server Database Engine 執行的 Transact-SQL 陳述式不被所要求的伺服器資料指標類型支援時,就會發生資料指標隱含轉換事件。此時 Database Engine 會傳回一個錯誤訊息,指出資料指標類型...
CursorImplicitConversion事件類別描述應用程式開發介面 (API) 或 Transact-SQL 數據指標中發生的數據指標隱含轉換事件。 當 SQL Server 資料庫引擎 執行所要求類型的伺服器數據指標不支援的 Transact-SQL 語句時,就會發生數據指標隱含轉換事件。 資料庫引擎 會傳回錯誤,指出數據指標類型已變更。
тий CursorImplicitConversionописываетсобытиянеявногопреобразованиякурсоров, происходящиевинтерфейсахпрограммированияприложений (API) иликурсорах Transact-...
to check the number of columns. l_return := DBMS_SQL.to_cursor_number(l_ref_cursor); DBMS_SQL.describe_columns2 (l_return, l_col_cnt, l_desc_tab); l_ref_cursor := DBMS_SQL.to_refcursor(l_return); -- Process the result set according to the number of columns. CASE l_col_cnt...
EventSequence int Sequence of the CursorClose event class in the batch. 51 No GroupID int ID of the workload group where the SQL Trace event fires. 66 Yes Handle int Handle of the object referenced in the event. 33 Yes HostName nvarchar Name of the computer on which the client ...