oracle %type
1¡¢Ê¹ÓÃ%TYPE
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DECLARE
v_FirstName VARCHAR2(20);
µ«ÊÇÈç¹ûfirst_nameÁе͍Òå¸Ä±äÁ˻ᷢÉúʲô£¨±ÈÈç˵±í¸Ä±äÁË£¬first_nameÏÖÔÚµÄÀàÐͱäΪVARCHAR2(25)£©£¿ÄǾͻᵼÖÂËù ÓÐʹÓÃÕâ¸öÁеÄPL/SQL´úÂë¶¼±ØÐë½øÐÐÐ޸ġ£Èç¹ûÄãÓкܶàµÄPL/SQL´úÂ룬ÕâÖÖ´¦Àí¿ÉÄÜÊÇÊ®·ÖºÄʱºÍÈÝÒ׳ö´íµÄ¡£
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DECLARE
v_FirstName students.first_name%TYPE;
ͨ¹ýʹÓÃ%TYPE,v_FirstName±äÁ¿½«Í¬students±íµÄfirst_nameÁеÄÀàÐÍÏàͬ£¨¿ÉÒÔÀí½âΪ½«Á½Õ߰ÆðÀ´£©¡£
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ʹÓÃ%TYPEÊǷdz£ºÃµÄ±à³Ì·ç¸ñ£¬ÒòΪËüʹµÃPL/SQL¸ü¼ÓÁé»î£¬¸ü¼ÓÊÊÓ¦ÓÚ¶ÔÊý¾Ý¿â¶¨ÒåµÄ¸üС£
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declare
v_id hr.jobs.job_id%type;
v_title hr.jobs.job_title%type;
begin
select job_id,job_title into v_id,v_title
from hr.jobs
where job_id ='&aa';
dbms_output.put_line('ÐòºÅ'||v_id );
dbms_output.put_line('Ãû³Æ'||v_title);
end;
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ÐòºÅAD_VP
Ãû³ÆAdministration Vice President
2 ʹÓÃ%ROWTYPE (Ï൱ÓÚ¶¨ÒåÒ»¸östruct À´½øÐдæ·Å£¬ÒÔ¶ÔÏóÀ´¿´¶ÔÊý¾Ý£©
ÔÚPL/SQLÖн«Ò»¸ö¼Ç¼ÉùÃ÷Ϊ¾ßÓÐÏàͬÀàÐ͵ÄÊý¾Ý¿âÐеÄ×÷·¨ÊǺܳ£¼ûµÄ¡£PL/SQLÌṩÁË%ROWTYPEÔËËã·û£¬Ê¹µÃÕâÑùµÄ²Ù×÷¸üΪ·½±ã¡£
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DECLARE
v_StudentRecord students%ROWTYPE;
½«¶¨ÒåÒ»¸ö¼Ç¼£¬¸Ã¼Ç¼ÖеÄ×ֶν«Óëstudents±íÖеÄÁÐÏà¶ÔÓ¦¡£
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declare
v_jobs hr.jobs%rowtype;
begin
select * into v_jobs
from hr.jobs
where job_id ='&aa';
dbms_output.put_line('ÐòºÅ'||v_jobs.job_id );
dbms_output.put_line('Ãû³Æ'||v_jobs.job_title);
end;
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Êä³ö½á¹ûΪ£º
ÐòºÅAD_VP
Ãû³ÆAdministration Vice President
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