查询顺序存取法QSAM ？

Queried Sequential Access Method?

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基本顺序存取法BSAM ？

Basic Sequential Access Method?

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排队索引存取法QLAM ？

Queued Indexed Access Method?

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基本分区存取法BPAM ？

Basic Partitioned Access Method?

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基本分区存取法BPAM ？

Basic Partitioned Access Method?

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