There is a command group 'az_synapse_link connection'. This group of commands could 'manage synapse s link connection'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_synapse_link connection_update'.The syntax is: az synapse link-connection update --file
                                  --name
                                  --workspace-name. The 1th example of the child command would be to use it to 'update a link connnection  definition json sample is    name   samplelinkconnection      please change to your link connection name  properties     sourcedatabase     typeproperties       please change to your source database resourceid and principalid  resourceid    subscriptions samplesubscriptionid resourcegroups sampleresourcegroup providers microsoft sql servers sampleserver    principalid   xxxxxxxxxx      linkedservice     referencename   samplelinkservicereference      please change to your source database link service name  type   linkedservicereference        targetdatabase     linkedservice     referencename   samplelinkservicereference      please change to your target database link service name  type   linkedservicereference    parameters     dbname   v2          compute     corecount  16   computetype   general', the syntax is: az synapse link-connection update --workspace-name testsynapseworkspace \
  --name testlinkconnectionname \
  --file @"path/definition.json". The parameter '--file' is required. It is used to properties may be supplied from a json file using the `@{path}` syntax or a json string.. The parameter '--name -n' is required. It is used to the link connection name.. The parameter '--workspace-name' is required. It is used to the workspace name.. 