# Keycloak interfacing with SQL server

**URL:** <https://forum.keycloak.org/t/keycloak-interfacing-with-sql-server/7409>\
**Category:** Configuring the server\
**Created:** [February 16, 2021, 10:00am UTC](https://forum.keycloak.org/t/keycloak-interfacing-with-sql-server/7409 "2021-02-16T10:00:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![milindjagtap](https://avatars.discourse-cdn.com/v4/letter/m/ea666f/32.png) [@milindjagtap](https://forum.keycloak.org/u/milindjagtap)\
**Post date:** [February 16, 2021, 10:00am UTC](https://forum.keycloak.org/t/keycloak-interfacing-with-sql-server/7409/1 "2021-02-16T10:00:11Z")

</div>

hi,

I am using keycloak version 12.0.1. I want to store user in ms SQL Sever. Keycloak is working fine default H2 data. I have frontend angular application. when I try to run wildfly adapter to start keycloak,I am getting error message as below: -

08:57:44,180 INFO [org.jboss.as.controller] (Controller Boot Thread) OPVDX002: Failed to pretty print validation error: null  
08:57:44,184 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: WFLYCTL0085: Failed to parse configuration  
at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:143)  
at org.jboss.as.server.ServerService.boot(ServerService.java:395)  
at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:416)  
at java.lang.Thread.run(Thread.java:748)  
Caused by: javax.xml.stream.XMLStreamException: org.jboss.as.connector.util.ParserException: IJ010061: Unexpected element: connection-url  
at org.jboss.as.connector.subsystems.datasources.DataSourcesExtension$DataSourceSubsystemParser.readElement(DataSourcesExtension.java:651)  
at org.jboss.as.connector.subsystems.datasources.DataSourcesExtension$DataSourceSubsystemParser.readElement(DataSourcesExtension.java:205)  
at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:122)  
at org.jboss.staxmapper.XMLExtendedStreamReaderImpl.handleAny(XMLExtendedStreamReaderImpl.java:69)  
at org.jboss.as.server.parsing.StandaloneXml\_14.parseServerProfile(StandaloneXml\_14.java:673)  
at org.jboss.as.server.parsing.StandaloneXml\_14.readServerElement(StandaloneXml\_14.java:243)  
at org.jboss.as.server.parsing.StandaloneXml\_14.readElement(StandaloneXml\_14.java:140)  
at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:138)  
at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:52)  
at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:122)  
at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:76)  
at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:126)  
… 3 more  
Caused by: org.jboss.as.connector.util.ParserException: IJ010061: Unexpected element: connection-url  
at org.jboss.as.connector.subsystems.datasources.DsParser.parseDataSources(DsParser.java:261)  
at org.jboss.as.connector.subsystems.datasources.DsParser.parse(DsParser.java:189)  
at org.jboss.as.connector.subsystems.datasources.DataSourcesExtension$DataSourceSubsystemParser.readElement(DataSourcesExtension.java:644)  
… 14 more

08:57:44,188 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.  
08:57:44,212 INFO [org.jboss.as] (MSC service thread 1-4) WFLYSRV0050: Keycloak 12.0.1 (WildFly Core 13.0.3.Final) stopped in 13ms

any input on above issue will be highly appreciate.