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msg varchar(1000);    --¶¨ÒåÒ»¸ö±äÁ¿ÓÃÓÚÏÔʾ´«³öµÄÐÅÏ¢
begin
PRO_TACCOUNT_RECOUNT ('B9D2B59A955541298D59EA8C35668CFD',msg);   --Ö´Ðд洢¹ý³Ì
dbms_output.put_line(msg);   --Êä³ö±äÁ¿
end; ......

oracle to_date,to_char,trunc,decodeÓ÷¨

select decode('X','Q','±äÁ¿1','±äÁ¿2') from dual
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Oracle³£ÓÃSQLÓï¾ä(PL/SQL developer¹¤¾ßϵÄ)

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create table users(
id number(4) primary key,
username varchar2(10),
password varchar2(10)
)
²éѯ±í²¢½âËø±í(¼´¿ÉÒÔµã»÷ÊäÈë¿òÏÂÃæµÄ"Ëø"ͼ±ê¹¤¾ß, ¼´"Edit data")
select * from users for update
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alter table mobilephone drop column mobiletype
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