Rename FKs

--'sp_rename ''' + obj.name + ''', ''FK_' + tab1.name + '_' + tab2.name + '_' + col2.name + '''',
SELECT 
	'sp_rename ''' + obj.name + ''', ''FK_' + tab1.name + '_' + tab2.name + '_' + col2.name + '''' AS [PROC],
	'FK_' + tab1.name + '_' + tab2.name + '_' + col2.name + '''' AS EXPECTED_NAME,
	obj.name AS FK_NAME,
    tab1.name AS [table],
    tab2.name AS [referenced_table],
    col2.name AS [referenced_column]
FROM sys.foreign_key_columns fkc
INNER JOIN sys.objects obj
    ON obj.object_id = fkc.constraint_object_id
INNER JOIN sys.tables tab1
    ON tab1.object_id = fkc.parent_object_id
INNER JOIN sys.schemas sch
    ON tab1.schema_id = sch.schema_id
INNER JOIN sys.columns col1
    ON col1.column_id = parent_column_id AND col1.object_id = tab1.object_id
INNER JOIN sys.tables tab2
    ON tab2.object_id = fkc.referenced_object_id
INNER JOIN sys.columns col2
    ON col2.column_id = referenced_column_id AND col2.object_id = tab2.object_id
WHERE 'FK_' + tab1.name + '_' + tab2.name + '_' + col2.name <> obj.name
ORDER BY [table], FK_NAME