Fujitsu Corporation

Nobuyuki Takebe

Masahiro Kataoka

Ryo Matsumura

Takaki Ozawa

Jo Ajisawa

Naohiro Ito

Takayuki Nakazawa

Jinshi Annen

Takafumi Okizuka

A non-transitory computer-readable recording medium has stored therein a program for causing a computer to execute a process. The process includes: when obtaining a character string including one unit of character information at one position in the character string, referring to presence/absence information indicating whether or not at least one character string, in a character string group including a plurality of character strings to which compression codes have been assigned, includes the one unit of character information at the one position; and searching the character string group for the obtained character string except for a case that the presence/absence information indicates that none of the character strings included in the character string group include the one unit of character information at the one position.

Control method and control device

A database server apparatus including: a data storage unit configured to store data; a committing procedure information storage unit configured to store committing procedure information for committing each of a plurality of transactions that updates data stored in the data storage unit; a data creating unit configured to create yet-to-be-committed update data from the stored data by executing a transaction for updating the data upon receipt of the transaction; a determining unit configured to determine whether there is a committed transaction that creates committed data as source update data before the transaction executed by the data creating unit is committed; and a committing unit configured to commit the transaction for re-updating the yet-to-be-committed update data in accordance with the committed data and the committing procedure information, when the determining unit determines that there is the committed transaction.

Database server apparatus, method for updating database, and recording medium for database update program

A data presentation device with a memory storage area being used without any futility is disclosed. The data presentation device has a function of preparing on a memory and displaying on a display the first through Nth records of presentation target data group in designated sort data that is obtained when sorting all the presentation target data within a database under designated sort conditions in a form that does not store in the memory the presentation target data assured of being the (N+1)th through the last records of data, and a function of preparing on the memory and displaying on the display the ((K+1)&#xb7;(N+1))th through the ((K+2)&#xb7;N)th records of presentation sort data group in the designated sort data in a form that limits the processing target presentation sort data within the database by use of a value of a sort key within the ((K+1)&#xb7;N)th record of presentation sort data displayed on the display when instructed to display the next presentation sort data group and in a form that does not store in the memory the presentation sort data assured of being unrequired.

Data presentation device, computer readable medium and data presentation method

A database assist method is adapted to a data processing system which includes a first processing unit, an input/output unit which is coupled to the first processing unit, a second processing unit, a database and cache memory. The database assist method assists a database related process which includes selection of items from records stored in the database and includes the steps of (a) forming an execution procedure table which defines a procedure for retrieving information of interest from the database in response to a processing request from a request source, (b) generating at least a column information table which defines item structures within the records and a selection/projection table which defines the items to be extracted and extracting conditions based on the execution procedure table, (c) storing a block group of interest into cache memory from the database based on the column information table and the selection/projection table and carrying out a specified process with respect to the stored block group for a specified item, and (d) returning a result of the specified process carried out in step (c) to the request source by a batch processing.

Growing community of inventors

Numazu, Japan

Nobuyuki Takebe