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
OceanBase Database automatically sets cursors for DML operations such as ALTER and DELETE, and creates workspaces for the cursors. These cursors implicitly created by the system are referred to as implicit cursors and named after SQL cursors, which is defined by OceanBase Database. Applicability This...
Example 12-14, "Showing Number of Rows Affected by Each DELETE in FORALL" Example 12-15, "Showing Number of Rows Affected by Each INSERT SELECT in FORALL" Related Topics In this chapter: "FORALL Statement" "Named Cursor Attribute" In other chapters: "Implicit Cursors" "Processing Que...
Returning REF CURSORs from PL/SQL : Functions, Procedures and Implicit Statement Results Using Ref Cursors To Return Recordsets Dynamic SQL Enhancements in Oracle 11g (TO_CURSOR_NUMBER, TO_REFCURSOR) Background Spend more than a few minutes with a Transact-SQL developer and you will have a conv...
Query references remote tables in linked servers. Becomes keyset. Becomes keyset. 5 5 Query references at least one table without a unique index. Transact-SQL cursors only. Becomes static. Done Note Fast forward cursors are never converted. Note Keyset and dynamic cursors are only converted if ...
TheCursorImplicitConversionevent class describes cursor-implicit conversion events that occur in application programming interfaces (APIs) or Transact-SQL cursors. Cursor implicit conversion events occur when the SQL Server Database Engine executes a Transact-SQL statement that is not supported by server ...
Cursors vs while loop Customize email message - SQL Server Agent Data Archiving/Purging process Data conversion from non-unicode character to unicode character Data Pump Data Truncated using FOR XML PATH Data type equivalent in T-SQL for the CLOB data type in PL-SQL - SQL Server 2012 and su...
szSqlState = "01S02", *pfNativeError = 0, szErrorMsg="[Microsoft][SQL Server Native Client] Cursor type changed" 应用程序可以通过调用 SQLGetStmtOption 设置为SQL_CURSOR_TYPE来确定正在使用哪种类型的游标。 游标类型转换仅适用于一个语句。 下一个 SQLExecDirect 或SQLExecute 将使用...
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Why do we use cursors ? Oracle cursors in PL/SQL What are the disadvantages of cursors in Oracle ? Where would you use implicit & explicit cursors? What is need of JSP implicit objects? Application of cursors in applications specifically PL/SQL views and cursors Implicit subtypingRelated...