将旧的"+"加入转换为SQL Server语法？

Question

我老了,并且总是使用"+"符号来表示外部,但是这个sql在sql server中不起作用.有人可以帮助我将以下sql转换为新的"左外连接"格式.

select frdonmst.FRID, 
       fradrmst.adrseq, 
       fax.phone   as fax, 
       phone.phone as phone 
from   frdonmst, 
       fradrmst, 
       frphnmst fax, 
       frphnmst phone 
where  frdonmst.frid = fradrmst.frid 
       and frdonmst.adrseq = fradrmst.adrseq 
       and ( frdonmst.frid = fax.frid(+) 
             and frdonmst.adrseq = fax.adrseq(+) 
             and fax.phtyp(+) = 'FAX1' ) 
       and ( frdonmst.frid = phone.frid(+) 
             and frdonmst.adrseq = phone.adrseq(+) 
             and phone.phtyp(+) = 'D1' ) 

Answer 1

我会试一试,但我从来没有见过以这种身份使用的加号.:)

SELECT a.FRID
    , b.adrseq
    , fax.phone AS fax
    , phone.phone AS phone
FROM frdonmst a
JOIN fradrmst b
    ON a.adrseq = b.adrseq
LEFT JOIN frphnmst fax
    ON a.frid = fax.frid
    AND a.adrseq = fax.adrseq
    AND fax.phtyp = 'FAX1'
LEFT JOIN frphnmst phone
    ON a.frid = phone.frid
    AND a.adrseq = phone.adrseq
    AND phone.phtyp = 'D1'

PS刚刚手工输入,我礼貌地建议使用单词来命名.