blocked queries in sql server

SELECT session_id, command, blocking_session_id, wait_type, wait_time, wait_resource, t.TEXT
FROM sys.dm_exec_requests
CROSS apply sys.dm_exec_sql_text(sql_handle) AS t
WHERE session_id > 50
AND blocking_session_id > 0
UNION
SELECT session_id, '', '', '', '', '', t.TEXT
FROM sys.dm_exec_connections
CROSS apply sys.dm_exec_sql_text(most_recent_sql_handle) AS t
WHERE session_id IN (SELECT blocking_session_id
                    FROM sys.dm_exec_requests
                    WHERE blocking_session_id > 0)

Find Table name based on foreign key

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_NAME
FROM
    INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK
    ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK
    ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU
    ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
INNER 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
   
    --where  C.CONSTRAINT_NAME='FK_'