Question

    select distinct sel.empty_tu_loc_id, sel.loc_id from 
(
    SELECT CONNECT_BY_ROOT LOC_ID_PARENT AS empty_tu_loc_id, LN.LOC_ID AS loc_id
    FROM LN_LOC_LOC LN
    CONNECT BY PRIOR LOC_ID = LOC_ID_PARENT and link_type = 'PARENT'
    START WITH LOC_ID_PARENT IN (SELECT e.loc_id FROM empty_tu_loc e inner join grp g on g.loc_id= e.loc_id)
) sel
left outer join empty_tu_loc e1 on e1.loc_id=sel.loc_id
where e1.loc_id is null
union all 
SELECT distinct loc_id, loc_id FROM empty_tu_loc
);

我很困惑：如何将此代码迁移到ms sql-sever 2014？

Answer 1

您可以尝试递归公用表表达式（CTE）。看看这里 https://social.msdn.microsoft.com/Forums/en-US/bdab27a0-c1f5-477f-99ed-77f73cf0ea56/how-do-i-replace-the-usage-of-connect-by-prior-in-sql-server-2008r2-?forum=transactsql

Oracle PL / SQL CONNECT BY PRIOR ...在SQL Server中使用START WITH语句

1 个答案: