trigger 触发器
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2013-12-13 20:38:34
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关于trigger写的挺详细的：https://www.cnblogs.com/xiaoyuersdch/p/7169773.html
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2018-04-10 10:09:05
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# Java String 转 Colb
在Java编程中，有时候我们需要将字符串转换成字节数组，或者将字节数组转换成字符串。这在网络编程、加密解密等场景中经常会遇到。今天我们就来了解一下如何在Java中进行String和byte[]之间的转换。
## String 转 byte[]
在Java中，我们可以使用`getBytes()`方法将String对象转换成字节数组。这个方法有多个重载形
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2024-07-05 05:37:56
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https://blog.csdn.net/indexman/article/details/8023740/ https://www.cnblogs.com/sharpest/p/7764660.html https://www.cnblogs.com/yaobolove/p/4781971.ht
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2019-06-24 23:54:00
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触发器： 当用户登录/退出或者操作某个数据对象或者进行DDL(建表，建view)引起某个储存过程的值的变化，把这个隐含被调用的过程，称为触发器。 语法 CREATE OR REPLACE TRIGGER trigger_name {before|AFTER} {insert,delete,updat
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2018-08-16 09:42:00
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oracle trigger 第一个demo是最简单的trigger的实例，是表触发器 -- unit one -- table trigger 最简单的表触发器，在table名为project表insert，update，delete时触发
create or replace trigger project_trigger_name
after insert or up
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2023-04-20 16:04:01
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1. 查询表上的触发器 select trigger_name from all_triggers where table_name='表名';例如: selecame=...
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2024-04-30 09:34:29
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1.DELETE TRIGGER,used for delete employer after delete the department. This is a rows trigger.CREATE OR REPLACE TRIGGER del_eptidAFTER DELETE ON deptmentFOR EACH ROW--Rows triggerBEGINDELETE FROM emp WHERE id=:old.id;END del_deptid;/2.INSERT TRIGGER,used for insert a new employer after create a new
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2011-01-20 14:56:00
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Sequence of triggers fires on Commit.1. KEY Commit2. Pre Commit3. Pre/On/Post Delete4. Pre/On/Post Update5. Pre/On/Post Insert6. On commit7. Post Database CommitSequence of triggers fires when ...
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2021-07-21 11:34:10
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Introduction ------------ This document lists the order in which triggers fire in Oracle Forms 4.5: o The first column, Action, describes the function to be performed (e.g. deleting a ...
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2021-07-21 11:42:00
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Oracle Study之--Oracle触发器（Trigger） 转发自：http://blog.csdn.net/indexman/article/details/8023740/（感谢作者）本篇主要内容如下：8.1 触发器类型8.1.1 DML触发器8.1.2 替代触发器8.1.3 系统触发器8.2&
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2015-04-10 12:13:11
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Suppose you want to handle an error in oracle forms and want to display custom error message for that error, but also you want to customize more for a particular error. For example there are many fiel...
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2021-07-21 11:33:32
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触发器是指被隐含执行的存储过程一、创建DML触发器（before/after）1、行触发器:当一个DML操作影响DB中的多行时，对于其中复合触发条件的每行均触发一次（for each row） 例1： 建立一个触发器, 当职工表 emp 表被删除一条记录时，把被删除记录写到职工表删除日志表中去。CR
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2018-07-30 08:49:00
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I wrote this trigger around 4 years ago to handle errors in an application based on Oracle Forms 6i. This trigger handles all errors with some custom messages for some specific errors and not only thi...
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2021-07-21 11:33:33
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I have written many posts related to triggers in Oracle Forms, I have given examples for Form Level triggers, Data Block Level triggers and Item Level Triggers. And in this tutorial I am just giving t...
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2021-07-21 11:36:15
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一个简单的trigger，实现当操纵员工表时自动将员工人数统计到部门表中。
SQL> create table dept(dno int,dname varchar(20),population int);
表已创建。
SQL> create table emp(eid int,ename varchar2(20),dno int);
 
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2011-02-10 22:41:38
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oracle文档: https://docs.oracle.com/cloud/latest/db112/LNPLS/triggers.htm#LNPLS750 概述： 触发器是一种特殊类型的存储过
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2022-10-21 16:17:22
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20150609 Created By BaoXinjian一、摘要oracle logon trigger一般用来审计用户登录信息或者限制用户登录，虽说不常用，但仍不失为一种好办法。1. 不能审计dba用户登录2. 什么时候适合使用It is advised you use this trigger only when(1) not using archive logging on th
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2022-03-09 15:52:31
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Pre-Form trigger in Oracle Forms fires during the form start-up, before forms navigates to the first navigable data block of that form. Use a Pre-Form trigger to perform the tasks such as maximize t...
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2021-07-21 11:29:49
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Created an Oracle Form to handle specific events / triggers like When-New-Form-Instance, Pre-Insert, Post-Insert, Pre-Update, Post-Update, Post-Query and Post-Forms-Commit. I am doing the following si...
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2021-07-21 11:35:52
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