The access acceleration technique due to file automatic program generation function

摘要

(57) Abstract Objective With automatic file generation function, de of n fileJoin data file and index file generation of taWith, the day due to the join conversion and the key file of the fileTo assure the acceleration of taakusesu, furthermore varying conversion of the key section the truthReality it does. Constitution File coupling of file A1 and file B2Putting, generation of file C for join (data division 4, indetsukusu section 5) to do, the key section of each file (standardizationKey X₁) by sorting, normal sequential organization huTo be something which assures the acceleration of data access of airu, kiAlso configuration of the multiple keys and varying conversion of key length are actual - to in regardReality it does.