Ind_Ary 列包含 SQL 扩展指示符设置。
The Ind_Ary column contains the SQL extended indicator settings.
使用扩展指示符支持，单个程序可以基于一个公共键用于单个表的所有更新事务。
With extended indicator support, a single program can be used for all incoming update transactions against a single table based on a common key.
要理解R PG handle_update子过程，我们需要讨论扩展指示符变量支持的概念。
To understand the RPG HANDLE_UPDATE sub-procedure we need to discuss the concept of extended indicator variable support.
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