Question

I must update table, and I can’t use else if in tsql. Is it exists?

Status =
(
CASE
WHEN
(Status in (0))
THEN
0
ELSE IF Status in (1)
THEN 
7
ELSE
Status
END

Answer 1

The CASE WHEN syntax does support multiple conditions:

Status = CASE WHEN Status = 0 THEN 0
              WHEN Status = 1 THEN 7
              ELSE Status
         END

Since you are comparing the same field for equality in both cases, you can use the shorter notation:

Status = CASE Status WHEN 0 THEN 0
                     WHEN 1 THEN 7
                     ELSE Status
         END