Question

我是甲骨文的新人。我正在尝试使用自动递增的主键功能在oracle 10g中创建一个表。而我正在做这个创造触发器。我创建了2个表1.SERVLET_JSP_REGISTRATION和2.BOOKS。

Sql for SERVLET_JSP_REGISTRATION

    CREATE TABLE  "SERVLET_JSP_REGISTRATION" 
("FIRSTNAME" VARCHAR2(4000), 
"LASTNAME" VARCHAR2(4000), 
"EMAIL" VARCHAR2(4000), 
"PASSWORD" VARCHAR2(4000), 
"ADDRESS" VARCHAR2(4000), 
"CITY" NUMBER, 
"SKILLS" VARCHAR2(4000), 
"LOCATION" VARCHAR2(4000), 
"PHONE" VARCHAR2(4000), 
"MARITALSTATUS" NUMBER, 
"ID" NUMBER, 
 CONSTRAINT "MY_PK" PRIMARY KEY ("ID") ENABLE
)
 /
 CREATE OR REPLACE TRIGGER  "BI_SERVLET_JSP_REGISTRATION" before insert on SERVLET_JSP_REGISTRATION              
 for each row  
 begin   
 if :NEW.ID is null then 
 select SERVLET_JSP_REGISTRATION_SEQ.nextval into :NEW.ID from dual; 
 end if; 
 end;
 /
  ALTER TRIGGER  "BI_SERVLET_JSP_REGISTRATION" ENABLE
 /

SQL for Books

CREATE TABLE  "BOOKS" 
 (  "ID" NUMBER, 
"TITLE" VARCHAR2(4000), 
"AUTHOR" VARCHAR2(4000), 
"DESCRIPTION" VARCHAR2(4000), 
"PRICE" NUMBER, 
"PUBLISHED_ON" DATE, 
"STATUS" NUMBER, 
 CONSTRAINT "BOOKS_PK" PRIMARY KEY ("ID") ENABLE
)
/


CREATE OR REPLACE TRIGGER  "BI_BOOKS" before insert on BOOKS              
  for each row  
begin   
  if :NEW.ID is null then 
    select BOOK_SEQ.nextval into :NEW.ID from dual; 
  end if; 
end;
/
ALTER TRIGGER  "BI_BOOKS" ENABLE;
/
ALTER TRIGGER  "BI_BOOKS" ENABLE
/

但是当我尝试在两个表上插入一行时，SERVLET_JSP_REGISTRATION就可以了，但是在BOOKS的情况下，它显示错误＆＃34; 错误ORA-04098：触发＆＃39 ; SYSTEM.BI_BOOKS＆＃39;无效且重新验证失败＆＃34; ---你能告诉我问题在哪里以及如何解决？提前谢谢。

ORA-04098：触发＆＃39; SYSTEM.BI_BOOKS＆＃39;无效且重新验证失败

0 个答案: