--To Disable a Constraint at DB level

EXEC sp_MSForEachTable 'ALTER TABLE ? NOCHECK CONSTRAINT ALL'

--Write the code to DROP tables

DROP TABLE TABLENAME

DROP TABLE TABLENAME

DROP TABLE TABLENAME

--To Enable a Constraint at DB level

EXEC sp_MSForEachTable 'ALTER TABLE ? CHECK CONSTRAINT ALL'

--Checks the Status of Constraints

SELECT (CASE
    WHEN OBJECTPROPERTY(CONSTID, 'CNSTISDISABLED') = 0 THEN 'ENABLED'
    ELSE 'DISABLED'
    END) AS STATUS,
    OBJECT_NAME(CONSTID) AS CONSTRAINT_NAME,
    OBJECT_NAME(FKEYID) AS TABLE_NAME,
    COL_NAME(FKEYID, FKEY) AS COLUMN_NAME,
    OBJECT_NAME(RKEYID) AS REFERENCED_TABLE_NAME,
    COL_NAME(RKEYID, RKEY) AS REFERENCED_COLUMN_NAME
FROM SYSFOREIGNKEYS
ORDER BY TABLE_NAME, CONSTRAINT_NAME,REFERENCED_TABLE_NAME, KEYNO

SELECT *
FROM sys.foreign_keys
WHERE referenced_object_id = object_id('dbo.Tablename')

ALTER TABLE MyTable NOCHECK CONSTRAINT MyConstraint

DROP TABLE TABLENAME

select concat("alter table ", table_name, " drop ", constraint_type ," ", constraint_name, ";")
  from information_schema.table_constraints
  where table_name like 'somefoo_%'
        and
        constraint_type <> "PRIMARY KEY";

ALTER TABLE Orders DROP FOREIGN KEY fk_PerOrders;
DROP TABLE Orders;

DROP TABLE Orders;
DROP TABLE Order_lines;

DROP TABLE Order_lines;
DROP TABLE Orders;