Abstract: A method for deleting data sets contained in a data list from a table system comprises the following steps, said steps being carried out for all data sets of said data list: reading one data set; checking whether said read data set has a specified property; if said data set has said specified property: deleting said data set in said first table; and substituting the contents of said data set in said second table by a blank data set. Furthermore, there is provided a computer program product and a device.

Abstract: A computer system receives a data collection and creates an administration table. A main process locks the data collection against unauthorized access using an association, in a lock table, between it and a lock identifier required for data collection access by processes. The main process divides the data collection into subgroups. The lock identifier and each subgroup are forwarded to one of the processes; the subgroups being parallel processed by recipient processes that access and update the data collection using the lock identifier, and set the lock identifier and update the administration table regarding the processing done by the recipient process, the administration table being common to all of the subgroups. After the recipient processes, the data collection is unlocked by the main process by removing the association between the data collection and the lock identifier in the lock table.

Abstract: A method for importing a plurality of data sets into a system, each data set comprising data segments separated by a separator, the method comprising the steps of: providing data sets to be imported on a data storage medium, reading the data sets from the data storage medium, storing the data sets in a first table in the system, substantially without processing the data sets, reading the stored data sets from the first table, and writing one or more data segments of each data set into sub-tables, each sub-table comprising at least one data field. Furthermore, it is disclosed a computer program product and a device for importing a plurality of data sets into a system.

Abstract: According to the present invention there is provided a user interface for mapping data sets to a target data structure. Each data set comprises data segments separated by a separator. The target data structure comprises target data fields. The user interface comprises: 1) a segment display section in which data segments of one data set are displayed; 2) a target display section in which possible target fields to which data segments can be associated/mapped are displayed; 3) a selection device for associating a predetermined data segment with a target field; and 4) a contents preview display section in which the different values contained in one selected data segment of all data sets is displayed. Furthermore, there is provided a method and computer system.