Question

我正在使用以下查询进行分页

SELECT * FROM (
  SELECT a.*, rownum row_num FROM (
    select distinct field1, field2, ...
      COUNT(*) OVER () RESULT_COUNT
    from table1
    where condition1
    order by someField desc
  )a 
  WHERE rownum < :maxRow 
)WHERE row_num > = :minRow;

我得到result_count = 294（这是总记录匹配条件），而在distinct之后返回的总记录是61.如何在result_count中得到61。换句话说，在使用distinct之后我需要总记录数。

Answer 1

这是你的意思

SELECT * FROM (
  SELECT a.*, rownum row_num FROM (
    select field1, field2, ...
      COUNT(DISTINCT field1) OVER () RESULT_COUNT
    from table1
    where condition1
    order by someField desc
  )a 
  WHERE rownum < :maxRow 
)WHERE row_num > = :minRow;

记录计数后的不同

1 个答案: