migrate query sybase to oracle with sign "*="

Question

Hello guys i have this query in sybase with this sign *=, I use in oracle LEFT OUTER JOIN but i dont if right.

Query in sybase:

select
  right(( "00" +convert(varchar(2), cta_consol.cod_correo)) , 2) +
  right(("000000000" + convert(varchar(11), cta_consol.num_cta_cte)), 9) 
from
  t_cuenta_consolidada cta_consol,
  t_cuenta_corriente   ctacte ,
  t_empresa            empresa,
  t_comuna             comuna,
  t_comuna             comuna_CtaCte,
  t_ciudad             ciudad,
  t_ciudad             ciudad_CtaCte ,
  t_cta_cte_param         param
where
  empresa.ide              = cta_consol.ide_cliente  and
  empresa.cod_comuna       = comuna.codigo           and
  comuna.cod_ciudad        = ciudad.codigo           and
  ctacte.cod_comuna        = comuna_CtaCte.codigo    and
  comuna_CtaCte.cod_ciudad = ciudad_CtaCte.codigo    and
  cta_consol.num_cta_cte   = ctacte.num_cta_cte      and
  cta_consol.num_cta_cte   *= param.num_cta_cte

cta_consol.num_cta_cte *= param.num_cta_cte

query migrate to oracle:

 select 
  SUBSTR(('00' || CAST(cta_consol.cod_correo AS VARCHAR2(2))),-2) ||
  SUBSTR(('000000000' || CAST(cta_consol.num_cta_cte AS VARCHAR2(11))),-9) 
from
  t_cuenta_consolidada cta_consol 
LEFT OUTER JOIN t_cta_cte_param param ON cta_consol.num_cta_cte = param.num_cta_cte, 
  t_cuenta_corriente   ctacte, 
  t_empresa empresa, 
  t_comuna comuna, 
  t_ciudad  ciudad
where
  empresa.ide = cta_consol.ide_cliente AND 
  empresa.cod_comuna  = comuna.codigo AND 
  comuna.cod_ciudad  = ciudad.codigo AND 
  ctacte.cod_comuna  = comuna.codigo AND 
  comuna.cod_ciudad = ciudad.codigo AND 
  cta_consol.num_cta_cte  = ctacte.num_cta_cte

LEFT OUTER JOIN t_cta_cte_param param ON cta_consol.num_cta_cte = param.num_cta_cte,

I have compared the amount of registration of each query, and it is not the same

Answer 1

You can mix modern ANSI join syntax with the old proprietary Oracle join syntax, but the order is important.

It's usually easier and less confusing to either do ANSI:

select 
    SUBSTR(('00' || CAST(cta_consol.cod_correo AS VARCHAR2(2))),-2) ||
    SUBSTR(('000000000' || CAST(cta_consol.num_cta_cte AS VARCHAR2(11))),-9) 
from
    t_cuenta_consolidada cta_consol 
LEFT JOIN t_cta_cte_param param ON cta_consol.num_cta_cte = param.num_cta_cte
JOIN t_cuenta_corriente ctacte ON cta_consol.num_cta_cte  = ctacte.num_cta_cte
JOIN t_comuna comuna ON ctacte.cod_comuna  = comuna.codigo
JOIN t_empresa empresa ON empresa.ide = cta_consol.ide_cliente AND empresa.cod_comuna  = comuna.codigo 
JOIN t_ciudad  ciudad ON comuna.cod_ciudad  = ciudad.codigo
WHERE ...

Or old Oracle style:

select 
    SUBSTR(('00' || CAST(cta_consol.cod_correo AS VARCHAR2(2))),-2) ||
    SUBSTR(('000000000' || CAST(cta_consol.num_cta_cte AS VARCHAR2(11))),-9) 
from
t_cuenta_consolidada cta_consol,
t_cta_cte_param param, 
t_cuenta_corriente   ctacte, 
t_empresa empresa, 
t_comuna comuna, 
t_ciudad  ciudad
where
empresa.ide = cta_consol.ide_cliente AND 
empresa.cod_comuna  = comuna.codigo AND 
comuna.cod_ciudad  = ciudad.codigo AND 
ctacte.cod_comuna  = comuna.codigo AND 
comuna.cod_ciudad = ciudad.codigo AND 
cta_consol.num_cta_cte  = ctacte.num_cta_cte AND
cta_consol.num_cta_cte = param.num_cta_cte (+)