The Sys.Dependency provider enables you to write a Luminesce SQL query that lists provider and custom view dependencies in Luminesce.

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

See also: Sys.Admin.SetupView, Sys.Registration

Basic usage

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

Query parameters

Sys.Dependency has parameters that enable you to filter or refine a query.

To list available parameters, their data types, default values, and an explanation for each, run the following query using a suitable tool:

select FieldName, DataType, ParamDefaultValue, Description from Sys.Field where TableName = 'Sys.Dependency' and FieldType = 'Parameter';

Data fields

By default, Sys.Dependency 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.Dependency' and FieldType = 'Column';

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

Examples

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

Example 1: Retrieve first 10 dependencies across all views and providers

In this example, ShowAll = True is specified to include views and dependencies the user is not entitled to run in the results.

select * from Sys.Dependency limit 10

Example 2: Retrieve dependencies for a particular custom view

select * from Sys.Dependency where Name = 'Views.MaturityDaysToExpiry'

Example 3: Retrieve providers and views with a particular dependency

select Name from Sys.Dependency where Dependency = 'Lusid.Instrument'