在Oracle中,AFTER INSERT触发器表示在执行INSERT操作之后触发。下面是一个创建AFTER INSERT触发器的例子: ```sql CREATE OR REPLACE TRIGGER trg_xx AFTER insert ON t --AFTER 指定 触发时间,on后跟表名称,即当表有插入时触发事件 for each row --每一行 begin insert into t_mid (raw_data, created_time,...
Note See also how to create AFTER DELETE, AFTER UPDATE, BEFORE DELETE, BEFORE INSERT, and BEFORE UPDATE triggers. See also how to drop a trigger.Example Let's look at an example of how to create an AFTER INSERT trigger using the CREATE TRIGGER statement. If you had a table created as...
CREATEORREPLACETRIGGERevent_trigger AFTER STARTUPONDATABASEBEGININSERTINTOevent_tableVALUES(ora_sysevent,sysdate);END; select*fromevent_table; 三、触发器的综合实例 Example:做一个日志用来记录scott用户的一些操作: 首先在sysdba权限下建立日志表,序列,触发器: CREATETABLEobject_log( logidNUMBERCONSTRAINTpk_log...
objecttype VARCHAR2(50) NOT NULL, objectowner VARCHAR2(50) NOT NULL );CREATE SEQUENCE obj_log_seq;CREATE OR REPLACE TRIGGER object_trigger AFTER CREATE OR DROP OR ALTER ON DATABASE BEGIN INSERT INTO object_log VALUES(obj_log_seq.nextval,sysdate,ora_dict_obj_type,ora_dict_obj...
1 CREATE [OR REPLACE] TRIGGER trigger_name 2 {BEFORE | AFTER} {database_event} ON {DATABASE | SCHEMA} 3 DECLARE 4 Variable declarations 5 BEGIN 6 ...some code... 7 END; 数据库事件触发器是发生在数据库范围的事件时触发的。有6个数据库事件触发器。
CREATE ANY TRIGGER 发现其他架构中的触发器定义所必需的。 CREATE ANY TYPE 发现在其他架构中定义的类型所必需的。 某些SSMA 功能需要额外的权限。 例如,如果要使用 测试迁移的数据库对象(OracleToSQL) 和管理 备份(OracleToSQL) 功能,则需要授予连接用户以下权限: 展开表 权限说明 EXECUTE ANY P...
1. Logging example In this example, after each update on ‘SALARY’ column ofemployee_salary, it will fire a ‘after update’ trigger and insert the new updated data into aemployee_salary_logtable, for audit purpose. 1.1 Create tables and trigger. ...
insert: create or replace trigger TRI_ADD_EMP after insert on emp for each row declare pragma autonomous_transaction; begin insert into emp_copy select :new.empno, :new.ename, :new.job, :new.mgr, :new.hiredate, :new.sal, :new.comm, :new.deptno, sysdate, 'insert', '' from dual; ...
CREATE TRIGGER trigger_name [BEFORE|AFTER|INSTEAD OF] event_name ON table_name [ -- 触发器逻辑... ]; 1. 2. 3. 4. 5. 触发器的一个例子: -- 实际的触发器 CREATE OR REPLACE TRIGGER TEST_TRI AFTER DELETE OR INSERT OR UPDATE ON TESTTABLE DECLARE...
Note See also how to create AFTER DELETE, AFTER INSERT, AFTER UPDATE, BEFORE DELETE, and BEFORE UPDATE triggers. See also how to drop a trigger.Example Let's look at an example of how to create an BEFORE INSERT trigger using the CREATE TRIGGER statement. If you had a table created as...