公开(公告)号：US09639567B2

公开(公告)日：2017-05-02

申请号：US15164335

申请日：2016-05-25

Applicant: SAP SE

Inventor： Yong Sik Lee ,  Jaeyoung Choi ,  Jin Young Kook ,  Jochen Becker ,  Alexander Boehm

IPC: G06F7/00 ,  G06F17/30

CPC classification number: G06F17/3033 ,  G06F17/30424 ,  G06F17/30486 ,  G06F17/30498 ,  G06F17/3056

Abstract: A system includes determination of a value identifier for each value of a first table, based on a data dictionary of a second table, generation of a hash function, the hash function mapping, for each row of the first table, one or more value identifiers of one or more columns of the row to a pointer to the row, application of the hash function to one or more value identifiers of a row of a second table, determination of whether the output of the hash function is a valid hash, and, if it is determined that the output of the hash function is a valid hash, determination that the row of the second table is associated with the first table.

公开(公告)号：US20160267084A1

公开(公告)日：2016-09-15

申请号：US15164335

申请日：2016-05-25

Applicant: SAP SE

Inventor： Yong Sik Lee ,  Jaeyoung Choi ,  Jin Young Kook ,  Jochen Becker ,  Alexander Boehm

IPC: G06F17/30

CPC classification number: G06F17/3033 ,  G06F17/30424 ,  G06F17/30486 ,  G06F17/30498 ,  G06F17/3056

Abstract: A system includes determination of a value identifier for each value of a first table, based on a data dictionary of a second table, generation of a hash function, the hash function mapping, for each row of the first table, one or more value identifiers of one or more columns of the row to a pointer to the row, application of the hash function to one or more value identifiers of a row of a second table, determination of whether the output of the hash function is a valid hash, and, if it is determined that the output of the hash function is a valid hash, determination that the row of the second table is associated with the first table.