Sql Server Query to find all foreign keys referring to particular table

Introduction:  In this article I have explained How to get all foreign keys that refers to a particular table in sql server. I.e. listing all tables whose primary key column is used as a foreign key in our table. We can get full details i.e. referenced table with schema, referring table with schema, referenced column, referring column, foreign key constraint name etc

In previous article i explained How to Find all foreign keys references of particular table and Temporary tables, their types and examples to use and What is cursor? Advantages and disadvantages, when to use and example to explain and Stored procedure for insert, update, delete, bind and search operation in table and CTE to remove duplicate data from sql server database table

Implementation: Let’s create a table 'tbEmployee' having a primary key column 'EmployeeId' and two columns DeptId and CategoryId as foreign key. DeptId refers to DepartmentId of 'tbDepartment' Table and CategoryId referes to StaffCategoryId column of 'tbStaffCategory' table.

GO

-- Create a table 'tbEmployee' using following script

CREATE TABLE  tbEmployee

(

            EmployeeId          INT IDENTITY(1,1) NOT NULL PRIMARY KEY,

            EmployeeName   VARCHAR(100),

            DeptId                  INT FOREIGN KEY REFERENCES tbDepartment(DepartmentId),

            CategotyId           INT FOREIGN KEY REFERENCES tbStaffCategory(StaffCategoryId),

);

GO

-- Create another table 'tbDepartment' using following script

CREATE TABLE tbDepartment

(                                  

            DepartmentId INT IDENTITY(1,1) NOT NULL PRIMARY KEY,

            DepartmentName VARCHAR(100),

);

GO

-- Create another table 'tbStaffCategory' using following script

CREATE TABLE tbStaffCategory

(                                  

            StaffCategoryId INT IDENTITY(1,1) NOT NULL PRIMARY KEY,

            StaffCategoryName VARCHAR(100),

);

Query to find all foreign keys referring to particular table

SELECT SCM.name [Schema], OBJECT_NAME(FK.parent_object_id) 'Referenced Table',

COL_NAME(FK.parent_object_id,FKC.parent_column_id) 'Referenced Column' ,

SCM.name [Schema], OBJECT_NAME(FK.referenced_object_id) 'Referring Table',

COL_NAME(FK.referenced_object_id, FKC.referenced_column_id) 'Referring Column',

FK.name 'Foreign Key Name'

FROM sys.foreign_keys FK INNER JOIN sys.schemas SCM on FK.schema_id=SCM.schema_id

INNER JOIN sys.foreign_key_columns AS FKC ON FKC.constraint_object_id = FK.object_id

WHERE FK.parent_object_id = OBJECT_ID('dbo.tbEmployee')

Result:

Schema	Referenced Table	Referenced Column	Schema	Referring Table	Referring Column	Foreign Key Name
dbo	tbEmployee	DeptId	dbo	tbDepartment	DepartmentId	FK__tbEmploye__DeptI__40058253
dbo	tbEmployee	CategotyId	dbo	tbStaffCategory	StaffCategoryId	FK__tbEmploye__Categ__40F9A68C

 Now over to you:

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