Re: Data extractor for IMS,DB2,VSAM

In article <1992Jun1.223605.17181> crash_at_hal.com (Chris Craddock) writes:

>For IMS, you're really out of luck because the only way you can access
>IMS data is via a transaction (MPP/WFI/BMP). Your program must know the
>physical details of the data segments you plan to access and the program
>has to be loaded (together with the appropriate PSB's) into IMS libraries.

You can also access IMS databases from MVS "batch" jobs, or from TSO. To enable better access to IMS databases, and support SQL queries against IMS databases, several vendors offer "gateway" products, that often support a client-server paradigm making access from PC's and workstations possible.

Vendors of gateways include Information Builders (EDA-SQL), Computer Associates, and Oracle. IMS support is included in products like NOMAD and INGRES Star.

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