oracle Óαê
1. Óαê: ÈÝÆ÷£¬´æ´¢SQLÓï¾äÓ°ÏìÐÐÊý¡£
2. ÓαêÀàÐÍ: ÒþʽÓα꣬ÏÔʾÓα꣬REFÓαꡣÆäÖУ¬ÒþʽÓαêºÍÏÔʾÓαêÊôÓÚ¾²Ì¬Óα꣨ÔËÐÐǰ½«ÓαêÓëSQLÓï¾ä¹ØÁª£©,REFÓαêÊôÓÚ¶¯Ì¬Óαê(ÔËÐÐʱ½«ÓαêÓëSQLÓï¾ä¹ØÁª)¡£
3. ÒþʽÓαê: DMLÓï¾ä¶ÔÓ¦µÄÓα꣬ÓÉOracle×Ô¶¯¹ÜÀí£¬Ò²³ÆSQLÓαꡣ£¨ËùÓеÄDML²Ù×÷¶¼±»OracleÄÚ²¿½âÎöΪһ¸öcursorÃûΪSQLµÄÒþʽÓα꣩
-- ÒþʽÓαêµÄÊôÐÔÓУº
-- %FOUND – SQL Óï¾äÓ°ÏìÁËÒ»Ðлò¶àÐÐʱΪ TRUE
-- %NOTFOUND – SQL Óï¾äûÓÐÓ°ÏìÈκÎÐÐʱΪTRUE
-- %ROWCOUNT – SQL Óï¾äÓ°ÏìµÄÐÐÊý
-- %ISOPEN - ÓαêÊÇ·ñ´ò¿ª£¬Ê¼ÖÕΪFALSE
declare aid a.name%type:='liaomin'; --a.name¼´±íaµÄname×Ö¶Î ÕâÑù¶¨Òå¿ÉÒÔ²»ÐèÒªÖªµÀÀàÐÍ
begin
update a set name='liaomin1' where name=aid;
--ÒþʽÓαêÔÚÖ´ÐÐÉÏÃæÓï¾ä¾ÍÒѾֹͣ ËùÓÐÕâÀïÊDz»ÖªµÀÊÇ·ñ´ò¿ªµÄ
if(SQL%isopen) then
dbms_output.put_line('´ò¿ªÓαê');
end if;
--ÒþÊ¿ÓαêµÄÐÅÏ¢¶¼ÔÚSQL±äÁ¿ÖÐ Èç¹ûupdateµÄÊý¾ÝÓжàÌõ¼Ç¼ SQL¾ÍÖ¸Ïò×îºóÒ»Ìõ
if(SQL%notfound) then
dbms_output.put_line('ûÓÐ');
end if;
if(SQL%found) then
dbms_output.put_line('ÕÒµ½');
end if;
end;
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