建表
create table bi_mlk_searchkeyword(
id number(30) primary key,
keyword varchar2(30),
times number(30) not null,
inputdate date,
pinyin varchar2(50),
firstpinyin varchar2(30),
english varchar2(50)
建序列drop sequence dectuser_tb_seq;
create sequence dectuser_tb_seq minvalue 1 maxvalue 99999999
increment by 1
start with 1; /*步長為1*/
給表新增自增序列
create or replace trigger dectuser_tb_tri
before insert on bi_mlk_searchkeyword /*觸發條件：當向表dectuser執行插入操作時觸發此觸發器*/
for each row /*對每一行都檢測是否觸發*/
begin /*觸發器開始*/
select dectuser_tb_seq.nextval into :new.id from dual; /*觸發器主題內容，即觸發後執行的動作，在此是取得序列dectuser_tb_seq的下乙個值插入到表dectuser中的userid欄位中*/
end;
commit;
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