oracle 生成序列脚本

最新推荐文章于 2025-06-06 16:27:37 发布

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本文介绍两种在 Oracle 数据库中生成所有序列定义脚本的方法。第一种方法使用 SQL 语句拼接创建序列的命令；第二种方法利用 DBMS_METADATA 功能获取序列的 DDL。这两种方式均可帮助用户轻松地将现有序列迁移到新的数据库环境中。

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查看原文：http://www.ibloger.net/article/266.html

今天在移植一个项目的的数据库时,要移动所有的序列,下面就是一个如何生成序列脚本的语句

方法一:

SELECT ' CREATE SEQUENCE '||SEQUENCE_NAME|| ' INCREMENT BY '|| 
        INCREMENT_BY ||' START WITH '||LAST_NUMBER||' MAXVALUE '|| 
        MAX_VALUE  ||'   CACHE '||CACHE_SIZE||' ORDER NOCYCLE ;'
FROM user_SEQUENCES;

结果类似:

CREATE SEQUENCE ARTCOMMENT_SEQ INCREMENT BY 1 START WITH 341 MAXVALUE 999999999999999999999999999   CACHE 20 ORDER NOCYCLE ;
CREATE SEQUENCE ARTICLEVISTCECOLLECT_SEQ INCREMENT BY 1 START WITH 1 MAXVALUE 999999999999999999999999999   CACHE 20 ORDER NOCYCLE ;
CREATE SEQUENCE ARTICLEVISTTEMP_SEQ INCREMENT BY 1 START WITH 82989 MAXVALUE 999999999999999999999999999   CACHE 20 ORDER NOCYCLE ;
CREATE SEQUENCE ARTICLEVIST_SEQ INCREMENT BY 1 START WITH 1675 MAXVALUE 999999999999999999999999999   CACHE 20 ORDER NOCYCLE ;
CREATE SEQUENCE ARTICLE_SEQ INCREMENT BY 1 START WITH 1908 MAXVALUE 999999999999999999999999999   CACHE 20 ORDER NOCYCLE ;

方法二:

select dbms_metadata.get_ddl('SEQUENCE',u.object_name) from user_objects u where object_type='SEQUENCE'

结果类似:

CREATE SEQUENCE "MO_VO"."ARTCOMMENT_SEQ" MINVALUE 1 MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 341 CACHE 20 ORDER NOCYCLE ;

CREATE SEQUENCE "MO_VO"."ARTICLEVISTCECOLLECT_SEQ" MINVALUE 1 MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 ORDER NOCYCLE ;

CREATE SEQUENCE "MO_VO"."ARTICLEVISTTEMP_SEQ" MINVALUE 1 MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 82989 CACHE 20 ORDER NOCYCLE ;

CREATE SEQUENCE "MO_VO"."ARTICLEVIST_SEQ" MINVALUE 1 MAXVALUE 999999999999999999999999999 INCREMENT BY 1 START WITH 1675 CACHE 20 ORDER NOCYCLE ;