Oracle´æ´¢¹ý³Ì×ܽá(Ò»¡¢»ù±¾Ó¦ÓÃ)
1¡¢´´½¨´æ´¢¹ý³Ì
create or replace procedure test(var_name_1 in type,var_name_2 out type) as
--ÉùÃ÷±äÁ¿(±äÁ¿Ãû ±äÁ¿ÀàÐÍ)
begin
--´æ´¢¹ý³ÌµÄÖ´ÐÐÌå
end test;
´òÓ¡³öÊäÈëµÄʱ¼äÐÅÏ¢
E.g:
create or replace procedure test(workDate in Date) is
begin
dbms_output.putline('The input date is:'||to_date(workDate,'yyyy-mm-dd'));
end test;
2¡¢±äÁ¿¸³Öµ
±äÁ¿Ãû := Öµ;
E.g£º
create or replace procedure test(workDate in Date) is
x number(4,2);
begin
x := 1;
end test;
3¡¢ÅжÏÓï¾ä:
if ±È½Ïʽ then begin end; end if;
E.g
create or replace procedure test(x in number) is
begin
if x >0 then
begin
x := 0 - x;
end;
end if;
if x = 0 then
begin
x: = 1;
end;
end if;
end test;
4¡¢For Ñ»·
For ... in ... LOOP
--Ö´ÐÐÓï¾ä
end LOOP;
(1)Ñ»·±éÀúÓαê
create or replace procedure test() as
Cursor cursor is select name from student; name varchar(20);
begin
for name in cursor LOOP
begin
dbms_output.putline(name);
end;
end LOOP;
end test;
(2)Ñ»·±éÀúÊý×é
create or replace procedure test(varArray in myPackage.TestArray) as
--(ÊäÈë²ÎÊývarArray ÊÇ×Ô¶¨ÒåµÄÊý×éÀàÐÍ£¬¶¨Ò巽ʽ¼û±êÌâ6)
i number;
begin
i := 1; --´æ´¢¹ý³ÌÊý×éÊÇÆðʼλÖÃÊÇ´Ó1¿ªÊ¼µÄ£¬Óëjava¡¢C¡¢C++µÈÓïÑÔ²»Í¬¡£ÒòΪÔÚOracleÖб¾ÊÇûÓÐÊý×éµÄ¸ÅÄîµÄ£¬Êý×éÆäʵ¾ÍÊÇÒ»ÕÅ
--±í(Table),ÿ¸öÊý×éÔªËØ¾ÍÊDZíÖеÄÒ»¸ö¼Ç¼£¬ËùÒÔ±éÀúÊý×éʱ¾ÍÏ൱ÓÚ´Ó±íÖеĵÚÒ»Ìõ¼Ç¼¿ªÊ¼±éÀú
for i in 1..varArray.count LOOP
dbms_output.putline('The No.'|| i || 'record in varArray is:'||varArray(i));
end LOOP;
end test;
5¡¢While Ñ»·
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9CREATE TABLESPACE data01
10DATAFILE '/ora ......
Òì»ú»Ö¸´¹ý³Ì£º
ÔÚrman>run
{
allocate channel ch00 type 'sbt_tape' parms="ENV=(NB_ORA_CLIENT=zjddms1)";
set newname for datafile 1 to '/oradata/zjdms/1.dbf';
......
set newname for datafile 23 to '/oradata/test/23.dbf';
set newname for datafile 24 to '/oradata/test/24.dbf';
restore databas ......
¹ØÓÚlatchºÍmutexµÄÎÊÌâ
from:http://www.itpub.net/thread-1004815-1-1.html
A:
latchÊÇãÅËø£¬ÊÇÒ»ÖÖ´®Ðл¯»úÖÆ£¬ÓÃÀ´±£»¤SGAÖеÄÄÚ´æ½á¹¹¡£
mutexÊÇʲô£¬Ò²ÊÇÒ»ÖÖ´®Ðл¯»úÖÆ£¬ÊÇ»¥³âËø£¿
¸öÈ˶ÔmutexûÓÐʲô¸ÅÄî¡£Õâ¸öÊÇ10GÐÂÒý½øµÄ£¿9IºÃÏñûÓа¡¡£
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Óï·¨:
substr( string, start_position, [ length ] )
È¡×Ó×Ö·û´®,´Óstart_position¿ªÊ¼,È¡length¸ö,lengthΪ¿ÉÑ¡£¬Èç¹ûlengthΪ¿ÕÔò·µ»Østart_positionºóµÄËùÓÐ×Ö·û¡£
ʵÀý:
substr('This is a test', 6, 2) would return 'is'
&nbs ......
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