oracle使用execute immediate方式完成函数动态传入表名并操作 返回新的主键id值

CREATE OR REPLACE FUNCTION SEQ1 (v_bname in VARCHAR2) return NUMBER is

v_bcount NUMBER;
BEGIN

            execute immediate 'select count(*)  from '||v_bname into v_bcount;

            dbms_output.put_line(v_bname||'------------------'||v_bcount);
return(v_bcount+1);

end SEQ1;