SQL Updating two records - sql

Question

I am trying to update two employee's data. Let say one employee's id is 1234 and the other employee's id is 5678. Each employee has different services.
This is my table for reference
serv_id emp_id serv_name status
1 1234 computer1 A
5 1234 computer2 A
10 1234 computer3 A
37 1234 computer4 A
5 5678 computer2 A
11 5678 projector1 A
12 5678 projector2 A
30 5678 projector3 A
37 5678 computer4 A
35 5678 projector4 A
In the table above, we have 2 employees with 10 records and each employee has 5 services. What I want to do right now is to merge these two employee's services into one employee (1234) because employee 5678 is fired. However, serv_id with '5' or '37' does not need to be updated in employee 1234.
Here is my expected result. Let say A is active and I is inactive. Any suggestion on how to do it?
serv_id (pk) emp_id (fk) serv_name status
1 1234 computer1 A
5 (no update) 1234 computer2 A
10 1234 computer3 A
11 1234 projector1 A
12 1234 projector2 A
30 1234 projector3 A
35 1234 projector4 A
37 (no update) 1234 computer4 A
11 5678 projector1 I
37 5678 computer4 I
5 5678 computer2 I
11 5678 projector1 I
12 5678 projector2 I
30 5678 projector3 I
37 5678 computer4 I
35 5678 projector4 I

Answer 1

Try this
declare #tb as Table (serv_id int, emp_id int, serv_name nvarchar(20),status nvarchar(5))
insert into #tb
select 1 ,1234,'computer1','A' union
select 5 ,1234,'computer2','A' union
select 10,1234,'computer3','A' union
select 37,1234,'computer4','A' union
select 5 ,5678,'computer2','A' union
select 11,5678,'projector1','A' union
select 12,5678,'projector2','A' union
select 30,5678,'projector3','A' union
select 37,5678,'computer4','A' union
select 35,5678,'projector4','A'
update #tb set status ='I' where emp_id = 5678
insert into #tb select serv_id,1234,serv_name,'A' from #tb where emp_id=5678 and serv_id not in (select serv_id from #tb where emp_id=1234)
select * from #tb order by emp_id,serv_id

Answer 2

UPDATE t1
SET t1.status='I'
FROM my_table t1
LEFT OUTER JOIN my_table t2 ON t2.serv_name=t1.serv_name AND t2.emp_id=1234
WHERE t1.emp_id=5678
AND t2.serv_id IS NULL
We can join the table to itself by serv_name and emp_id to find common serv_names and then update only the records which have no same values for the emp_id=1234