包缓存——为存储静态和动态sql语句而分配的内存。
Package Cache - Memory allocated to store both static and dynamic SQL statements.
在DATA DIVISION中，FILE SECTION中的所有文件都静态分配了存储空间，并且该空间将一直保留到运行单元结束。
In the DATA DIVISION, all files in the file SECTION have storage statically allocated and remained for the life of the run unit.
根据他们各自的尺寸以及被应用的次数，全局和静态变量被分配到可利用的存储空间。
Global and static variables are allocated to available memory Spaces based on their size, and the number of times they are referenced.
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