这是Informix的写法,如何改为Oracle的写法,搞了半天,搞不定:
select 
a.int_id,
a.omc_id,
a.timestamp,
a.tkgp_name,
a.imap_tgdirection,
a.tkgp_sig_type,
a.imap_opc,
a.imap_dpc,
c.dsp_name,
sum(b.spm_no),
d.msc_name,
a.fdn 
from 
c_hua_tkgp_info a,
c_hua_tkgp_Circuit b,
c_hua_MSCServerM3UADE c,
c_hua_msc_info d 
where 
a.imap_tg = b.imap_tg and 
a.omc_id = b.omc_id and 
a.omc_id = c.omc_id and 
c.omc_id = d.omc_id and 
a.imap_dpc = c.imap_dpc and 
a.msc_fdn = d.fdn and 
c.msc_fdn = d.fdn and 
b.msc_fdn = d.fdn and 
a.timestamp = b.timestamp and 
b.timestamp = c.timestamp and 
c.timestamp = d.timestamp 
group by 1,2,3,4,5,6,7,8,9,11,12