The Sys.Connection provider enables you to write a Luminesce SQL query that lists information about the user running a query in Luminesce.

Note: The LUSID user running the query must have sufficient access control permissions to both use the provider and read system connection data. This should automatically be the case if you are the domain owner.

See also: Sys.User

Basic usage

select * from Sys.Connection where <filter-expression>;

Data fields

By default, Sys.Connection returns a table of data populated with particular fields (columns). You can return a subset of these fields.

To list fields available to return, their data types, whether fields are considered 'main', and an explanation for each, run the following query using a suitable tool:

select FieldName, DataType, IsMain, IsPrimaryKey, SampleValues, Description from Sys.Field where TableName = 'Sys.Connection' and FieldType = 'Column';

Note: Fields marked 'main' are returned by queries that include a caret character, for example select ^ from Sys.Connection.

Examples

Note: For more example Luminesce SQL queries, visit our Github repo.

Example 1: Retrieve data on the user running the query

select * from Sys.Connection

Example 2: Retrieve ID of the user running the query

select Value from Sys.Connection where Name = 'UserId'