PL/SQL程序可通过条件或循环结构来控制命令执行的流程。PL/SQL提供了丰富的流程控制语句,与C#一样也有三种控制结构: 顺序结构 条件结构 循环结构 ※条件控制 C#中的条件控制使用关键字if和switch。PL/SQL中关于条件控制的关键字有IF-THEN、IF-THEN-ELSE、IF-THEN-ELSIF和多分枝条件CASE。 ★IF-T
declare type row_num_type is table of number index by simple_integer; type row_text_type is table of varchar2(10) index by simple_integer; row_num_tab row_num_type; row_text_tab row_text_type; v_total number; sql_stmt varchar2(300);begin for i in 1..10 loop row_num_tab(i) ...
PL/SQL允许在运行时动态地确定循环范围。 示例 以下示例演示如何使用for循环 - SETSERVEROUTPUTONSIZE100000;DECLAREa number(2);BEGINFORain10..20LOOP dbms_output.put_line('value of a: '||a);ENDLOOP;END;/ 当上述代码在SQL提示符下执行时,它会产生以下结果 - 反转FOR LOOP语句 默认情况下,迭代从初始...
ForLoop 型別公開下列成員。 方法 展開表格 名稱描述 AcceptBreakpointManager This method is called by the run-time engine when a task or container is created, and passes it a BreakpointManager manager to allow the task to create, remove, and check the status of breakpoints. This method is ...
The Foreach Loop container repeats the control flow for each member of a specified enumerator. SQL Server Integration Services provides the following enumerator types: Foreach ADO enumerator to enumerate rows in tables. For example, you can get the rows in an ADO recordset. The Recordset ...
The Foreach Loop container repeats the control flow for each member of a specified enumerator. SQL Server Integration Services provides the following enumerator types: Foreach ADO enumerator to enumerate rows in tables. For example, you can get the rows in an ADO recordset. The Recordset ...
SQL Server SSIS Integration Runtime in Azure Data Factory The Foreach Loop container defines a repeating control flow in a package. The loop implementation is similar toForeachlooping structure in programming languages. In a package, looping is enabled by using a Foreach enumerator. The Foreach ...
SQL SQL Server 2008 R2 Пространствоимен Microsoft.SqlServer.Dts.Runtime C# Ағылшынтіліндеоқу Сақтау Жинақтарға қосу Жоспарға қосу Бөлісу құралы: ...
適用於:SQL Server Azure Data Factory 中的 SSIS Integration Runtime 在這個工作中,您要新增在一般檔案的資料夾中形成迴圈的功能,並對每個一般檔案套用第 1 課的資料流程轉換。 您的作法是在控制流程中加入和設定 Foreach 迴圈容器。 您加入的 Foreach 迴圈容器必須能夠連接到資料夾的每個一般...
This interface supports the SQL Server 2005 infrastructure and is not intended to be used directly from your code. For more information, see ForLoopClass. 命名空间: Microsoft.SqlServer.Dts.Runtime.Wrapper 程序集: Microsoft.SqlServer.DTSRuntimeWrap (in microsoft.sqlserver.dtsruntimewrap.dll) ...