How to find foreign key dependencies in SQL Server?

The following query will help to get you started. It lists all Foreign Key Relationships within the current database.

SELECT    FK_Table = FK.TABLE_NAME,    FK_Column = CU.COLUMN_NAME,    PK_Table = PK.TABLE_NAME,    PK_Column = PT.COLUMN_NAME,    Constraint_Name = C.CONSTRAINT_NAMEFROM    INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS CINNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK    ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAMEINNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK    ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAMEINNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU    ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAMEINNER JOIN (            SELECT                i1.TABLE_NAME,                i2.COLUMN_NAME            FROM                INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1            INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2                ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME            WHERE                i1.CONSTRAINT_TYPE = 'PRIMARY KEY'           ) PT    ON PT.TABLE_NAME = PK.TABLE_NAME

You can also view relationships graphically within SQL Server Management studio within Database Diagrams.

try: sp_help [table_name]

you will get all information about table, including all foreign keys

Because your question is geared towards a single table, you can use this:

EXEC sp_fkeys 'TableName'

I found it on SO here:

https://stackoverflow.com/a/12956348/652519

I found the information I needed pretty quickly. It lists the foreign key's table, column and name.

EDIT

Here's a link to the documentation that details the different parameters that can be used: https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-fkeys-transact-sql