Relational query interface to the LDS Hospital patient database

Since 1970, the HELP hospital information system has been collecting data into a common integrated database at the LDS Hospital. With the vast amount of stored information, there is a critical need for data extraction tools to use and verify these collected data. The purpose of this thesis in to increase and improve the access to the HELP patient database so that physicians can utilize the wealth of stored information, in establishing new medical standards or verifying existing ones. In order to increase the access to the patient database an information retrieval system will be created to acquire the data stored on the LDS Hospital TANDEM computer system and allow the transfer of that data to a variety of personal computers. To improve access to the patient database, a new query interface of editor will generate and execute PAL (PTXT APPLICATION LANGUAGE) queries to extract information from the database.