如何运行HTP程序plsql

Question

我必须运行HTP脚本，但是我不知道如何使用sqldeveloper

抄写看起来像这样

CREATE OR REPLACE PROCEDURE TIME_NOW IS
TIMENOW VARCHAR2(100);
BEGIN
    SELECT TO_CHAR(SYSDATE,'DD/MM/RRRR HH24:MI:SS') INTO TIMENOW FROM DUAL;
    HTP.HTMLOPEN;
        HTP.HEADOPEN;
        HTP.TITLE('TIME');
        HTP.HEADCLOSE;
        HTP.BODYOPEN;
           HTP.CENTEROPEN;
              HTP.HEADER(3,'TIME NOW:');
              HTP.BR;
              HTP.PRINT(TIMENOW);
           HTP.CENTERCLOSE;
        HTP.BODYCLOSE;
    HTP.HTMLCLOSE;
END;