| 摘要 |
Aspects of this disclosure relate a system for retrieving images that may include one or more mainframe computer sites or Logical Partitions (LPARS) one or more servers operatively connected to the LPARS, and one or more databases operatively connected one or more of the LPARS. The system may also include a processor that may be configured to perform a method for generating electronic cash letters. The method for generating electronic cash letters may include reading a primary input key file assigned to the cash letter job, wherein the primary input key file includes a set of keys and each key corresponds to an image stored in one of the databases. The method may further include splitting the keys in the primary input key file into individual key files. The method may further include attaching a key processor subtask to each of the individual key files and running the key processor subtasks concurrently and independently of one another, wherein each of the key processor subtasks connects to one of the servers via TCP/IP protocol and retrieves the images from the particular database to which the keys in individual key files correspond.
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