oracle 数据操作语句(持续更新中...)

复制一张新表（无数据）：create table aaa as select * from bbb;

select * from table where intime > to_date ('2018-11-28 00:00:00','yyyy-mm-dd hh24:mi:ss');

 

从表取数据并赋值

declare
  stra varchar2(1000):='JACK';
  strb varchar2(1000):='JACK';
begin 
  select WKLINEMHLINKNO,WKLINEMHWBLINKNO into stra, strb from pd.TPNWKLINEMHWB where rownum = 1;
  dbms_output.put_line('WKLINEMHLINKNO变量的值为：'||stra);
  dbms_output.put_line('WKLINEMHWBLINKNO变量的值为：'||strb);
  FOR L_RECORD IN (select WKLINEMHLINKNO,WKLINEMHWBLINKNO from pd.TPNWKLINEMHWB where rownum = 1)
  LOOP
      update pd.TPNWKLINEMHWB set WKLINEMHLINKNO = '1' where WKLINEMHLINKNO = 'abcccc';
  END LOOP;

end;

 

遍历表读取数据（类似游标）
declare
    cursor all_data is select WKLINEMHLINKNO from pd.TPNWKLINEMHWB where rownum <= 10;

row_data all_data%ROWTYPE;

begin
  open all_data;
    loop
      fetch all_data
        into row_data;
        dbms_output.put_line('WKLINEMHLINKNO变量的值为：'||row_data.WKLINEMHLINKNO);
      exit when all_data%notfound;
    end loop;
  close all_data;
end;