创建触发器仅在创建新表时运行

发布于 2024-10-14 11:39:12 字数 203 浏览 6 评论 0原文

我知道我可以用它来创建DDL创建触发器;

CREATE OR REPLACE TRIGGER 
  create_table_trigger
  AFTER CREATE ON SCHEMA
DECLARE
BEGIN
END;

问题是此触发器将在“创建序列”等 DDL 上运行;我怎样才能只对“创建表”DDL 执行此操作?

I know that I can use this to create DDL create trigger;

CREATE OR REPLACE TRIGGER 
  create_table_trigger
  AFTER CREATE ON SCHEMA
DECLARE
BEGIN
END;

Problem is this trigger would run on DDLs like 'Create sequence'; how can I only execute this for 'Create Table' DDLs?

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甜尕妞 2024-10-21 11:39:12
CREATE OR REPLACE TRIGGER 
  create_table_trigger
  AFTER CREATE ON SCHEMA
BEGIN
  IF SYS.DICTIONARY_OBJ_TYPE = 'TABLE' THEN
      ....
END;

有关 EVENT 属性的列表,请参阅此页面
http://ist.marshall.edu/ist480adbp/plsql_triggers.html(链接为向下)

回溯机链接到上面死链接的内容:
https://web.archive。 org/web/20110809071133/http://ist.marshall.edu/ist480adbp/plsql_triggers.html

据我所知,dictionary_obj_type是其中之一
TABLE|SEQUENCE|PROCEDURE|INDEX|FUNCTION|TYPE|PACKAGE

和dictionary_obj_name 只是表/序列/proc/等的名称。

  • dictionary_obj_type 返回发生触发触发器的 DDL 操作的字典对象的类型。
  • dictionary_obj_name 返回发生触发触发器的 DDL 操作的字典对象的名称。
CREATE OR REPLACE TRIGGER 
  create_table_trigger
  AFTER CREATE ON SCHEMA
BEGIN
  IF SYS.DICTIONARY_OBJ_TYPE = 'TABLE' THEN
      ....
END;

For a list of EVENT attributes, refer to this page
http://ist.marshall.edu/ist480adbp/plsql_triggers.html (link is down)

Wayback machine link to the contents of the dead link above:
https://web.archive.org/web/20110809071133/http://ist.marshall.edu/ist480adbp/plsql_triggers.html

As far as I know, dictionary_obj_type is one of
TABLE|SEQUENCE|PROCEDURE|INDEX|FUNCTION|TYPE|PACKAGE

And dictionary_obj_name is just the name of the table/sequence/proc/etc.

  • dictionary_obj_type Returns the type of the dictionary object on which the DDL operation that fired the trigger occurred.
  • dictionary_obj_name Returns the name of the dictionary object on which the DDL operation that fired the trigger occurred.
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