SSIS包如何成功执行foreach或for循环以自动增加字段插入的值？

Question

首先，我在SSIS中从未尝试过类似的东西，而且我对SSIS包的开发还很陌生。

我需要在我的包中构建一个组件，该组件将运行一个数据表（比如80行），并将标题为DisplayOrder的字段设置为自动递增的数字。问题是其中一条记录必须设置为0，然后其余的记录设置为自动递增的数字。

关于代码，我甚至不确定要附加到此问题的代码甚至是什么屏幕截图。

Answer 1

我终于想通了，不需要循环。

1. 创建SQL任务以清除链接的表。

使用的脚本

DELETE FROM [Currency].[ExchangeRates]

1. 创建SQL任务以清除主表。

使用的脚本

DELETE FROM [Currency].[CurrencyList]

1. 将值加载到主表中。

已使用的操作

• 从XML Source
加载值

• 将值转储到[ExchangeRates]表

  1. 创建SQL任务以将值从主表加载到链接表。

使用的脚本

INSERT INTO [Currency].[CurrencyList] (CurrencyCode, CurrencyName, ExchangeRateID, DisplayOrder) SELECT [er].[TargetCurrency] AS [CurrencyCode], [er].[TargetName] AS [CurrencyName], [er].[ID] AS [ExchangeRateID], ROW_NUMBER() OVER (ORDER BY [ER].[TargetName]) AS [DisplayOrder] FROM [Currency].[ExchangeRates] AS [er] ORDER BY [CurrencyName]

1. 创建一个SQL任务以将新记录加载到主表以用作DisplayOrder 0。

使用的脚本

INSERT INTO [Currency].[ExchangeRates] ([Title], [Link], [Description], [PubDate], [BaseCurrency], [TargetCurrency], [TargetName], [ExchangeRate]) VALUES ('1 USD = 1 USD','http://www.floatrates.com/usd/usd/','1 U.S. Dollar = 1 U.S. Dollar',(SELECT TOP 1 [PubDate] FROM [Currency].[ExchangeRates]),'USD','USD','United States Dollar','1')

1. 创建一个SQL任务以引用主表中新创建的记录。

使用的脚本

INSERT INTO [Currency].[CurrencyList] (CurrencyCode, CurrencyName, ExchangeRateID, DisplayOrder) SELECT [er].[TargetCurrency] AS [CurrencyCode], [er].[TargetName] AS [CurrencyName], [er].[ID] AS [ExchangeRateID], 0 AS [DisplayOrder] FROM [Currency].[ExchangeRates] AS [er] WHERE [er].[TargetCurrency] = 'USD'