SQL Script to find Foreign keys to a specific table?

Question

Is there a query that will get me foreign keys directed at a specific table column? For example, say I had these three tables:

__________
|Table A |
--------         


        

Answer 1

Courtesy of Pinal Dave:

SELECT 
    f.name AS ForeignKey,
    OBJECT_NAME(f.parent_object_id) AS TableName,
    COL_NAME(fc.parent_object_id,
    fc.parent_column_id) AS ColumnName,
    OBJECT_NAME (f.referenced_object_id) AS ReferenceTableName,
    COL_NAME(fc.referenced_object_id,
    fc.referenced_column_id) AS ReferenceColumnName
FROM 
    sys.foreign_keys AS f
    INNER JOIN sys.foreign_key_columns AS fc ON f.OBJECT_ID = fc.constraint_object_id

Answer 2

Added dynamic drop and create on dbo scheme.

DECLARE @l varchar(1) = char(13);
DECLARE @referenced_object_id varchar(MAX) = 'Replace_With_PK_Table_Name';

SELECT 
    fk.name AS ForeignKey,
    OBJECT_NAME(fk.parent_object_id) AS TableName,
    COL_NAME(fkc.parent_object_id,
    fkc.parent_column_id) AS ColumnName,
    OBJECT_NAME (fk.referenced_object_id) AS ReferenceTableName,
    COL_NAME(fkc.referenced_object_id,
    fkc.referenced_column_id) AS ReferenceColumnName,
    'ALTER TABLE [dbo].['+OBJECT_NAME(fk.parent_object_id)+'] DROP CONSTRAINT ['+fk.name+'];' DropFK,
    'ALTER TABLE [dbo].['+OBJECT_NAME(fk.parent_object_id)+']  WITH NOCHECK ADD  CONSTRAINT ['+fk.name+'] FOREIGN KEY(['+COL_NAME(fkc.referenced_object_id,
    fkc.referenced_column_id)+'])'+ @l +
    ' REFERENCES [dbo].['+OBJECT_NAME(fk.referenced_object_id)+'] (['+COL_NAME(fkc.referenced_object_id,
    fkc.referenced_column_id)+'])'+ @l +
    ' ON UPDATE CASCADE'+ @l +
    ' ON DELETE CASCADE;'+ @l +
    'ALTER TABLE [dbo].['+OBJECT_NAME(fk.parent_object_id)+'] CHECK CONSTRAINT ['+fk.name+'];' CreateFK
FROM 
    sys.foreign_keys AS fk
    INNER JOIN sys.foreign_key_columns AS fkc ON fk.OBJECT_ID = fkc.constraint_object_id
    WHERE OBJECT_NAME(fk.referenced_object_id)=@referenced_object_id