如何将序列中的下一个值转换为变量?
问题描述：
因此，我正在编写存储过程，并且在将序列的下一个值转换为变量时遇到麻烦.
So I'm writing a stored procedure and am having trouble getting the next value of a sequence into a variable.
序列名称被传递到函数中并存储为varchar2变量.如何将该序列中的下一个值转换为局部变量.
The sequence name is passed into the function and is stored as a varchar2 variable. How can you get the next value in that sequence into a local variable.
答
像这样吗?
create or replace procedure next_val (p_sequence_name varchar2)
as
v_nextval integer;
v_select varchar2(100);
begin
v_select := 'select '||p_sequence_name||'.nextval from dual';
execute immediate v_select into v_nextval;
dbms_output.put_line('Nextval is: '||TO_CHAR(v_nextval));
end;