Get all foreign key constent from schema

SELECT

K_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