sql - 返回带有 union all 的查询结果，其顺序与我的 `IN(…)` 语句中的值相同

Question

我想按 IN 值对下面的查询进行排序，例如通过电话 4444,6666,5555, ... 的结果排序

(
  select tab_a_user as user, tab_a_phone as phone
  from table_a
  where tab_a_phone in (4444, 6666, 5555, ...)
)
UNION ALL
(
  select tab_b_user as user, tab_b_phone as phone
  from table_b
  where tab_b_phone in (4444, 6666, 5555, ...)
)

我尝试像下面这样更改我的查询，但似乎缺少右括号

(
  select tab_a_user as user, tab_a_phone as phone
  from table_a
  where tab_a_phone in (4444, 6666, 5555, ...)
  order by field(phone,4444, 6666, 5555, ...))
UNION ALL
(
  select tab_b_user as user, tab_b_phone as phone
  from table_b
  where tab_b_phone in (4444, 6666, 5555, ...)
  order by field(phone,4444, 6666, 5555, ...))

IN 里面的值只是一个例子，因为在我的程序中，我会放一个变量，所以它会有一堆数据

Answer 1

使用 INSTR 的另一种方法像这样:

select * from  (

  select tab_a_user as user, tab_a_phone as phone
  from table_a
  where tab_a_phone in (4444, 6666, 5555)

  UNION ALL 

  select tab_b_user as user, tab_b_phone as phone
  from table_b
  where tab_b_phone in (4444, 6666, 5555)

)
order by
    INSTR('4444, 6666, 5555',phone)

要管理电话号码包含另一个电话号码的案例，您需要添加分隔符:

order by
    INSTR('-4444-6666-5555-','-'||phone||'-')