Dynamically Invoking Subprogram with RECORD Formal Parameter In this example, the dynamic PL/SQL block is an anonymous PL/SQL block that invokes a subprogram that has a formal parameter of the PL/SQL (but not SQL) data type RECORD. The record type is declared in a package specification,...
This example illustrates how you can create and use dynamic cursor in Oracle PL/SQL. The example is pretty simple, but I hope you can get the idea and apply it to more complicated cases. DECLARE t_cursorISREF CURSOR; my_cursor t_cursor; v_customer RECORD(customer_id NUMBER(18),amount ...
REF Cursor as IN parameter String cmdTxt2 = "begin testSP (:1, :2); end;"; // Create the command object for executing cmdTxt1 and cmdTxt2 OracleCommand cmd = new OracleCommand(cmdTxt1, conn); // Bind the Ref cursor to the PL/SQL stored procedure OracleParameter outRefPrm = cmd...
select * from emp where empNo = p_empno and sal = p_salary; What we are doing is forming the where predicate string dynamically based on user input and using execute immediate to execute above dynamically formed query. I know this dynamic query would be inefficient as each query would be ...
create or replace package REFCURSOR_PKG as TYPE WEAK8i_REF_CURSOR IS REF CURSOR; TYPE STRONG_REF_CURSOR IS REF CURSOR RETURN EMP%ROWTYPE; end REFCURSOR_PKG; 返回REF_CURSOR 的 PL/SQL 存储过程的编写示例: /** until Oracle 9 */ create or replace procedure test( p_deptno IN number ...
此Visual Basic 示例执行一个 PL/SQL 存储过程,返回 REF CURSOR 参数,并将值作为 OracleDataReader 读取。 VB 复制 Private Sub Button1_Click(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Button1.Click Dim connString As New String("...") Using conn As New OracleConnection(...
“项目设置”对话框的“转换”页面包含一些设置,用来自定义 SSMA 如何将 Oracle 语法转换为 SQL Server 语法。 “项目设置”和“默认项目设置”对话框中提供了“转换”窗格: 要指定用于所有 SSMA 项目的设置,请在“工具”菜单上单击“默认项目设置”,从“迁移目标版本”下拉列表中选择需要为其查看或更改设置的迁移...
一. Cursor说明 Oracle里的cursor分为两种:一种是shared cursor,一种是session cursor。 1.1 Shared cursor 说明 sharedcursor就是指缓存在librarycache(SGA下的Shared Pool)里的一种library cache object,说白了就是指缓存在library cache里的sql和匿名pl/sql。 它们是Oracle缓存在librarycache中的几十种librarycache...
SQL Server 資料表提示ROWLOCK, HOLDLOCKROWLOCK, XLOCK, HOLDLOCKROWLOCK, HOLDLOCKTABLOCK, HOLDLOCKTABLOCK, XLOCK, HOLDLOCKTABLOCKX, HOLDLOCK當您在 [模式] 方塊中選取轉換模式時,SSMA 會套用下列設定:預設/開放式/完整模式:是 針對REF CURSOR OUT 參數轉換 OPEN-FOR 陳述式 在Oracle 中,OPEN .. FOR 陳述式...
此Visual Basic 示例执行返回两 REF CURSOR 个OracleDataReader参数的 PL/SQL 存储过程,并使用 读取值。 VB 复制 Private Sub ReadOracleData(ByVal connectionString As String) Dim dataSet As New DataSet() Dim connection As New OracleConnection(connectionString) Dim command As New OracleCommand() Dim ...