Declare @TableName VarChar(100)
Set @TableName = 'YourTableNameHere'
Declare @SQL VarChar(max)
-- Drop Foreign Key constraints
Set @SQL = 'SET NOCOUNT ON; SET XACT_ABORT ON;Begin Transaction' + Char(13)
Select @SQL = @SQL +
'Alter Table [' + pk.table_schema + '].[' + PK.Table_Name + '] '
+ 'Drop Constraint [' + PK.Constraint_Name + ']; ' + char(13)
From Information_Schema.Table_Constraints pk
Where Constraint_Type = 'FOREIGN KEY'
And PK.Table_Name = @TableName
And PK.Constraint_Name Is Not NULL
Set @SQL = @SQL + 'Commit Transaction'
Print @SQL
--Exec (@SQL)