Abstract: A communication management apparatus for performing access control over a plurality of terminal devices is provided. The communication management apparatus includes a registration unit that accepts registration of a group of terminal devices to be granted permission of access among the plurality of terminal devices; and an access control unit that performs access control, if authentication information is set in association with the group in group information having information about the group, to permit access from one terminal device of the group of the terminal devices that supplies an input that matches the authentication information.

Abstract: A communication management apparatus for performing access control over a plurality of terminal devices is provided. The communication management apparatus includes a registration unit that accepts registration of a group of terminal devices to be granted permission of access among the plurality of terminal devices; and an access control unit that performs access control, if authentication information is set in association with the group in group information having information about the group, to permit access from one terminal device of the group of the terminal devices that supplies an input that matches the authentication information.

Abstract: When a number of document data registered in one of full-text index-for-registration/deletion storage parts reaches a predetermined number, or when a capacity of the full-text index-for-registration/deletion storage part reaches a predetermined capacity, a merge processing is performed for merging data from the full-text index-for-registration/deletion storage part to a full-text index-for-search storage part. While this merge processing is performed, a registration/deletion processing is performed by using another full-text index-for-registration/deletion storage part.

Abstract: When a number of document data registered in one of full-text index-for-registration/deletion storage parts reaches a predetermined number, or when a capacity of the full-text index-for-registration/deletion storage part reaches a predetermined capacity, a merge processing is performed for merging data from the full-text index-for-registration/deletion storage part to a full-text index-for-search storage part. While this merge processing is performed, a registration/deletion processing is performed by using another full-text index-for-registration/deletion storage part.

Abstract: When a number of document data registered in one of full-text index-for-registration/deletion storage parts reaches a predetermined number, or when a capacity of the full-text index-for-registration/deletion storage part reaches a predetermined capacity, a merge processing is performed for merging data from the full-text index-for-registration/deletion storage part to a full-text index-for-search storage part. While this merge processing is performed, a registration/deletion processing is performed by using another full-text index-for-registration/deletion storage part.

Abstract: When a number of document data registered in one of full-text index-for-registration/deletion storage parts reaches a predetermined number, or when a capacity of the full-text index-for-registration/deletion storage part reaches a predetermined capacity, a merge processing is performed for merging data from the full-text index-for-registration/deletion storage part to a full-text index-for-search storage part. While this merge processing is performed, a registration/deletion processing is performed by using another full-text index-for-registration/deletion storage part.

Abstract: When a number of document data registered in one of full-text index-for-registration/deletion storage parts reaches a predetermined number, or when a capacity of the full-text index-for-registration/deletion storage part reaches a predetermined capacity, a merge processing is performed for merging data from the full-text index-for-registration/deletion storage part to a full-text index-for-search storage part. While this merge processing is performed, a registration/deletion processing is performed by using another full-text index-for-registration/deletion storage part.

Abstract: A database controlling system is provided to decrease a quantity of work of a system manager and save the capacity of a hard disc of a server by deleting, after backed up data is restored, an unnecessary external file added after commencement of the backup. The database controlling system includes an external file for storing data, such as long and massive data, not ordinarily operated, an external file controlling device for controlling the external file, and an external file list storage file for storing a list of the external files. Together with a file of a base page region storing the oldest version of a page, the external file and external file list storage file directly access and backup a file.

Abstract: There is provided a document retrieval apparatus in which signatures can be easily extracted from document data, and false drop probability is reduced even for a long document so as to reduce a burden of eliminating the false drop. A processing unit converts the document data and the character string into character codes, respectively. The processing unit extracts signatures from each of the character codes, and calculates a record identifier of the document data to be stored based on a storing position of the document data in a record file. A data storing unit stores the document data to be registered in the record file, and stores the signature corresponding to the document data to be registered in a signature file. The signature is stored in a storing position in the signature file, the storing position being designated by the record identifier of corresponding document data stored in the record file.