# Expose all the tag of a GW DB with OPC-UA server

**URL:** <https://forum.inductiveautomation.com/t/expose-all-the-tag-of-a-gw-db-with-opc-ua-server/6522>\
**Category:** Ignition\
**Created:** [May 18, 2013, 4:47pm UTC](https://forum.inductiveautomation.com/t/expose-all-the-tag-of-a-gw-db-with-opc-ua-server/6522 "2013-05-18T16:47:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [May 18, 2013, 4:47pm UTC](https://forum.inductiveautomation.com/t/expose-all-the-tag-of-a-gw-db-with-opc-ua-server/6522/1 "2013-05-18T16:47:08Z")

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For a new type of architecture, to aggregate 2 or more Real Time Gateway database to a central database (A copy tag archiecture), an option or a device to expose all the tag of a database (memory and other) with the internal opc UA serveur of the gateway will be usefull feature.

Another solution could be to indicate a special OPC Item path (with Ignition OPC-UA Server) when creating the OPC Sql Tag in order to create a local memory value ?

These function could be usefull to exchange tag between 2 opc-ua system or scada…