如何在 Oracle 中重置序列?
在 PostgreSQL 中,我可以这样做:
In PostgreSQL, I can do something like this:
ALTER SEQUENCE serial RESTART WITH 0;
是否有 Oracle 等价物?
Is there an Oracle equivalent?
推荐答案
这里有一个很好的过程,可以将 Oracle 大师的任何序列重置为 0 汤姆·凯特.在下面的链接中也对利弊进行了很好的讨论.
Here is a good procedure for resetting any sequence to 0 from Oracle guru Tom Kyte. Great discussion on the pros and cons in the links below too.
tkyte@TKYTE901.US.ORACLE.COM>
create or replace
procedure reset_seq( p_seq_name in varchar2 )
is
l_val number;
begin
execute immediate
'select ' || p_seq_name || '.nextval from dual' INTO l_val;
execute immediate
'alter sequence ' || p_seq_name || ' increment by -' || l_val ||
' minvalue 0';
execute immediate
'select ' || p_seq_name || '.nextval from dual' INTO l_val;
execute immediate
'alter sequence ' || p_seq_name || ' increment by 1 minvalue 0';
end;
/
从此页面:动态用于重置序列值的 SQL
另一个很好的讨论也在这里:如何重置序列?
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