First you can try this link Understanding SQL Dependencies
Second, you have multiple options to check the Dependencies
using sql_expression_dependencies table, to see the dependency of X on Y, run the following query.
SELECT *
FROM sys.sql_expression_dependencies
WHERE referencing_id = OBJECT_ID( X )
AND referenced_id = OBJECT_ID( Y )
AND referenced_schema_name = dbo
AND referenced_entity_name = Y
AND referenced_database_name IS NULL
AND referenced_server_name IS NULL;
using the syscomments table, SQL Server s syscomments table stores the original SQL definition statement for every view, rule, default, trigger, CHECK and DEFAULT constraint, and stored procedure in your database. That s a lot of information! You can query this table to list dependent objects using a SQL statement in the following form
SELECT *
FROM syscomments
INNER JOIN sysobjects sysobj ON syscomments.id = sysobj.id
WHERE charindex( your object to check , text) > 0
using the sp_depends stored procedure, wich displays information about database object dependencies, such as: the views and procedures that depend on a table or view, and the tables and views that are depended on by the view or procedure
EXEC sp_depends @objname = N your object to check