sorry for the delay i am quite busy in an another work here is what i have you can modify for composite key
USE tempdb
IF OBJECT_ID('tempdb.dbo.Tblone') IS NOT NULL
BEGIN
DROP TABLE Tblthree
DROP TABLE TblTwo
DROP TABLE Tblone
END
GO
CREATE TABLE Tblone
(
oneid INT PRIMARY KEY
,NAME VARCHAR(100)
)
CREATE TABLE Tbltwo
(
twoid INT PRIMARY KEY
,oneid INT CONSTRAINT fk_two FOREIGN KEY REFERENCES tblone(oneid)
,NAME
VARCHAR(100)
)
CREATE TABLE Tblthree
(
Threeid1 INT
,Threeid2 INT
,twoid INT CONSTRAINT fk_three FOREIGN KEY REFERENCES tbltwo(twoid)
,NAME VARCHAR(100)
,CONSTRAINT pk_three PRIMARY KEY(threeid1 ,threeid2)
)
INSERT INTO Tblone
VALUES
(
1
,'11'
), (2 ,'22')
INSERT INTO Tbltwo
VALUES
( 1 ,1 ,'112' ), (2 ,2 ,'222'), (3 ,2 ,'221'), (4 ,2 ,'222')
INSERT INTO Tblthree
VALUES
(1,1,1,'112'), (2 ,1 ,1 ,'222'), (3 ,1 ,1 ,'221'), (4 ,1 ,1 ,'222'),
(1 ,2 ,2 ,'112'), (2 ,2 ,2 ,'222'), (3 ,2 ,2 ,'221'), (4 ,2 ,2 ,'222'),
(1 ,3 ,3 ,'112'), (2 ,3 ,3 ,'222'), (3 ,3 ,3 ,'221'), (4 ,3 ,3 ,'222'),
(1 ,4 ,4 ,'112'), (2 ,4 ,4 ,'222'), (3 ,4 ,4 ,'221'), (4 ,4 ,4 ,'222')
DECLARE @TableName AS VARCHAR(250)='TblOne'
DECLARE @Column AS VARCHAR(250)='Oneid'
DECLARE @Wstmt AS VARCHAR(MAX)=' '+@Column+' = @value';
WITH KeyDetails AS
(
SELECT D.name AS DependentTable
,Dc.name AS DependentColumn
,M.name AS MainTable
,Mc.Name AS MainColumn
,fkc.parent_object_id
,Fkc.referenced_object_id
FROM sys.foreign_key_columns fkc
INNER JOIN SYS.tables D
ON fkc.parent_object_id = D.[object_id]
INNER JOIN sys.syscolumns DC
ON fkc.parent_object_id = DC.id AND
fkc.parent_column_id = DC.colid
INNER JOIN SYS.tables M
ON fkc.referenced_object_id = M.[object_id]
INNER JOIN sys.syscolumns Mc
ON fkc.referenced_object_id = MC.id AND
fkc.referenced_column_id = MC.colid
),
DeptDetails AS
(
SELECT CAST(Fkc.DependentTable AS VARCHAR(MAX)) AS TableRelation
,fkc.DependentTable
,Fkc.DependentColumn
,Fkc.MainTable
,Fkc.MainColumn
,fkc.parent_object_id AS childID
,1 AS ReLevel
,CAST(
'SELECT 1 FROM '+FKC.DependentTable+' WHERE EXISTS(
SELECT 1 FROM '+FKC.MainTable+' WHERE '+FKC.MainTable+'.'+FKC.MainColumn+'='+FKC.DependentTable+'.'
+FKC.DependentColumn+' AND '+@Wstmt+')'
AS VARCHAR(MAX)
) AS STMT
FROM KeyDetails Fkc
WHERE fkc.referenced_object_id = OBJECT_ID(@TableName)
UNION ALL
SELECT CAST(c.TableRelation+'-->'+fkc.DependentTable AS VARCHAR(MAX)) AS TableRelation
,fkc.DependentTable
,Fkc.DependentColumn
,Fkc.MainTable
,Fkc.MainColumn
,fkc.parent_object_id AS childID
,c.ReLevel+1
,CAST(
'SELECT 1 FROM '+FKC.DependentTable+' WHERE EXISTS(
'+C.STMT+'
AND '+FKC.MainTable+'.'+FKC.MainColumn+'='+FKC.DependentTable+'.'+FKC.DependentColumn+')'
AS VARCHAR(MAX)
) AS STMT
FROM KeyDetails fkc
INNER JOIN DeptDetails c
ON fkc.referenced_object_id = c.Childid AND
fkc.parent_object_id<>c.childid
)
SELECT STMT
FROM DeptDetails
you can change the select statement according to the delete and the also change the order based on the level
Every rule in a world of bits and bytes, can be bend or eventually be broken
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