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create table T_CITY_WEB_CHANNEL_REPORT
(
  OPTDATE NUMBER not null,
  NEWEXPSUBCOUNT NUMBER default 0,
  SUMEXPSUBCOUNT NUMBER default 0,
  CHANNELTYPE NUMBER,
  CITYNAME VARCHAR2(30) not null,
)
comment on column T_CITY_WEB_CHANNEL_REPORT.OPTDATE
  is 'ͳ¼ÆÈÕÆÚ ''YYYYMMDD''';
comment on column T_CITY_WEB_CHANNEL_REPORT.NEWEXPSUBCOUNT
  is 'ÐÂÔöÌåÑéÊý';
comment on column T_CITY_WEB_CHANNEL_REPORT.SUMEXPSUBCOUNT
  is 'ÀÛ¼ÆÌåÑéÊý';
comment on column T_CITY_WEB_CHANNEL_REPORT.CHANNELTYPE
  is 'ÇþµÀÀàÐÍ 1:³¬ÊÐ 2£ºÉ̳¡;
comment on column T_CITY_WEB_CHANNEL_REPORT.CITYNAME
  is 'µØÊÐÃû³Æ';

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SQL code:
SELECT SUM(NEWEXPSUBCOUNT) AS NEWEXPSUBCOUNT ,
(SELECT SUMEXPSUBCOUNT from T_CITY_WEB_CHANNEL_REPORT
WHERE AND TO_CHAR(OPTDATE)='20100115') AS SUMEXPSUBCOUNT
from T_CITY_WEB_CHANNEL_REPORT
WHERE BYCITYNAME='AAA'
AND TO_CH


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