Oracle时间戳到sysdate的转换错误

Question

它给出这样的错误:日期格式图片在转换整个输入字符串之前结束

declare
  v_t timestamp; 
begin
  v_t := to_timestamp(systimestamp,'DD/MM/YY')+interval '12-3' year to month;
  DBMS_OUTPUT.PUT_LINE(v_t);
end;

Answer 1

SYSTIMESTAMP已经是一个时间戳，所以您不想调用to_timestamp。如果要在当前时间戳上添加12年零3个月

SQL> ed
Wrote file afiedt.buf

  1  declare
  2    v_t timestamp;
  3  begin
  4    v_t := systimestamp +interval '12-3' year to month;
  5    DBMS_OUTPUT.PUT_LINE(v_t);
  6* end;
SQL> /
20-JUL-24 03.27.28.966000 PM

PL/SQL procedure successfully completed.