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declare
begin
--SQLÓï¾ä
--Ö±½ÓдµÄSQLÓï¾ä(DML/TCL)
--¼ä½Óдexecute immediate <DDL/DCLÃüÁî×Ö·û´®>
--select Óï¾ä
<1>±ØÐë´øÓÐinto×Ó¾ä
select empno into eno from emp
where empno =7369;
<2>Ö»Äܲ鵽һÐÐ**********
<3>×ֶθöÊý±ØÐëºÍ±äÁ¿µÄ¸öÊýÒ»ÖÂ
exception
--Òì³£
when <Òì³£Ãû×Ö> then --ÌØ¶¨Òì³£
<´¦ÀíÓï¾ä>
when others then --ËùÓÐÒì³£¶¼¿É²¶»ñ
<´¦ÀíÓï¾ä>
end;
<Àý×Ó>
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Ö»ÄÜÊäÈëÕýÊý,Èç¹ûÓиºÊýÌáʾ
declare
n number;
no dept.deptno%type;
nm dept.dname%type;
lc dept.loc%type;
exp exception; --Òì³£µÄ±äÁ¿
exp1 exception;
num number:=0; --¼ÆÊýÆ÷
pragma exception_init(exp,-1); --Ô¤¶¨ÒåÓï¾ä
--(-1´íÎóºÍÒì³£±äÁ¿¹ØÁª)
pragma exception_init(exp1,-1476);
e1 exception; --×Ô¶¨ÒåÒì³£±äÁ¿
begin
--ÊäÈëÖµ
no := '&񅧏';
num := num + 1;
if no < 0 then
raise e1; --×Ô¶¨ÒåÒì³£µ
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