索引 さくいん じゅんアクセス方式 ほうしきだったら
saku injun akusesuhōshikidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 索引順アクセス方式

1. If it were direct access method.; If it had been direct access method.

Tara Conditional
Computing