mysql - 将 mysql sql 转换为 sql server

Question

我有一个 MySQL SQL 可以很好地处理 Jaspersoft 报告:

SELECT pr.id AS project_id,
   pr.project_name as project_name,
   pr.export_event_id,
   au.full_name,
   ee.timestamp 
FROM (
    SELECT project.id, project.project_name, MAX(project.export_event_id) AS max_export_event_id FROM project INNER JOIN export_event iee ON project.export_event_id = iee.id
    where IIF ($P{exportEventDate} IS NULL, TRUE, CONVERT(DATE, iee.timestamp) <= $P{exportEventDate})
      GROUP BY project_name
   ) AS in_PR INNER JOIN project AS pr ON pr.project_name = in_PR.project_name AND pr.export_event_id = in_PR.max_export_event_id
   INNER JOIN project_owner_base pob ON pob.id = pr.project_owner_id
   INNER JOIN export_event AS ee ON pr.export_event_id = ee.id
   INNER JOIN auth_user au ON pob.auth_user_id = au.id
   WHERE IIF ($P{projectOwner} IS NULL, TRUE, au.id = $P{projectOwner})

我正在尝试将其转换为 SQL Server，但找不到等效项。

将 $P{...} 视为“?”在动态 SQL 中 任何想法？

Answer 1

我认为这只是一个简单的 OR 语句。

Where @ProjectOwner IS NULL
OR au.id = @ProjectOwner