Abstract: A data sort method, apparatus, and program to receive a character string of sort key items specified as keys of a data sort process, generate an automaton corresponding to a record whose final transition state corresponds to the character string, determine the order specified by the character string by scanning the automaton, and determine the order of the records corresponding to the character string.

Abstract: In a full text search retrieval device connected to a plurality of user terminals, a received retrieval condition and terminal device information are stored in a trailing character buffer. If it is determined that a preceding retrieving process is not being performed, then a retrieval pattern variable table and a retrieval request expression variable table are generated. According to the retrieval request expression variable table, a database of the data to be searched is searched to extract a retrieval result matching the retrieval condition transmitted from each of the terminal devices, and the extracted retrieval result is transmitted to each of the plurality of terminal devices. Thus, although retrieval requests are continuously transmitted from respective users, a retrieval result can be returned to each user terminal in the same response time as in the case where a user terminal corresponds to a retrieval device.

Abstract: A full text search system using a character string collation method which searches a large quantity of data using a plurality of search processing apparatuses is disclosed. This system comprises a search integration unit which divides search-target character string data into a group of character string records, allocates the divided records to one or more search processing apparatuses, transmits given character string search conditions to each search processing apparatus, and receives and integrates search results. Furthermore, this System comprises an update temporary storage unit which temporarily stores new character string records to update the search-target character string data and an update record search instruction unit which instructs the new character string records stored in the update temporary memory unit to any one of the search processing apparatuses determined in advance as a part of the search-target character string data.

Abstract: A data sort method, apparatus, and program to receive a character string of sort key items specified as keys of a data sort process, generate an automaton corresponding to a record whose final transition state corresponds to the character string, determine the order specified by the character string by scanning the automaton, and determine the order of the records corresponding to the character string.

Abstract: A full text search system using a character string collation method which searches a large quantity of data using a plurality of search processing apparatuses is disclosed. This system comprises a search integration unit which divides search-target character string data into a group of character string records, allocates the divided records to one or more search processing apparatuses, transmits given character string search conditions to each search processing apparatus, and receives and integrates search results. Furthermore, this System comprises an update temporary storage unit which temporarily stores new character string records to update the search-target character string data and an update record search instruction unit which instructs the new character string records stored in the update temporary memory unit to any one of the search processing apparatuses determined in advance as a part of the search-target character string data.

Abstract: In a full text search retrieval device connected to a plurality of user terminals, a received retrieval condition and terminal device information are stored in a trailing character buffer. If it is determined that a preceding retrieving process is not being performed, then a retrieval pattern variable table and a retrieval request expression variable table are generated. According to the retrieval request expression variable table, a database of the data to be searched is searched to extract a retrieval result matching the retrieval condition transmitted from each of the terminal devices, and the extracted retrieval result is transmitted to each of the plurality of terminal devices. Thus, although retrieval requests are continuously transmitted from respective users, a retrieval result can be returned to each user terminal in the same response time as in the case where a user terminal corresponds to a retrieval device.