VARIABLE dcidnum number
begin
insert into DATACHANGE(CTYPE,USERID,CROW,CONDCID,CTABLE,CSTATE,CTIME) values('1','001',0,-1,'','1',to_date('2012-4-11 17:26:39','yyyy-mm-dd hh24:mi:ss'));  
select DCID INTO :dcidnum from DATACHANGE where CTIME= to_date('2012-4-11 17:26:39','yyyy-mm-dd hh24:mi:ss');
end;
/
print dcidnum

------解决方案--------------------

请参考：
SQL code

DECLARE   
    dcidnum NUMBER(20);
BEGIN  
    INSERT INTO DATACHANGE(CTYPE,USERID,CROW,CONDCID,CTABLE,CSTATE,CTIME) 
    VALUES('1','001',0,-1,'','1',to_date('2012-4-11 17:26:39','yyyy-mm-dd hh24:mi:ss')); 
    SELECT DCID INTO dcidnum FROM DATACHANGE WHERE CTIME= to_date('2012-4-11 17:26:39','yyyy-mm-dd hh24:mi:ss');
    DBMS_OUTPUT.PUT_LINE(dcidnum);
END;