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oracle ÄÚ´æÊý¾Ý¿â TimesTenÊÔÓñʼǣ¨aix5.3£©

 ×î½ü¹«Ë¾´òËãÔÚÏÂÒ»´ú¼Æ·ÑϵͳÀïÃæÊ¹ÓÃÄÚ´æÊý¾Ý¿âµÄ¼¼Êõ£¬ËùÒÔ×÷Ϊ¹«Ë¾µÄÉè¼ÆÈËÔ±Ö®Ò»µÄÎÒ£¬ÔÚoracleÍøÉÏÏÂÁ˸öTimesTen£¬°²×°ÔÚÎÒÃǵIJâÊÔ·þÎñÆ÷ÉÏÃæaix5£¬ÕâÆª¶ÌÎÄÖ÷ÒªÊÇÎÒ²Ù×÷Êý¾Ý¿âµÄÒ»¸ö±Ê¼Ç£¬ÏÂһƪ´òËã·¢Ò»¸öc³ÌÐòµÄÀý×ÓºÍÎÒ²âÊԵĽá¹û£¬ºóÐø¿ÉÄÜ»¹»áʹÓÃTimesTen cache of oracleÕâ¸ö²úÆ·£¬Â½ÐøÒ²»á·¢Ò»ÏÂÕâ·½ÃæµÄ±Ê¼ÇÉÏÀ´£¬Ï£Íû¶ÔÓÐÕâ·½ÃæÐèÇóµÄÅóÓÑÓÐËù°ïÖú¡£
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1 ½¨Á¢.odbc.iniÎļþÔڵǽĿ¼ÏÂ
[ODBC Data Sources]
mytimesten=TimesTen 6.0 Driver

[DemoDataStore]
DataStore=/home/fee/TimesTen6/DemoDataStore
DurableCommits=0
PermSize=16

2 Á¬½ÓÊý¾ÝÔ´£¬²¢´´½¨±í
[31 machine]/home/fee>ttIsql

Copyright (c) 1996-2006, Oracle. All rights reserved.
Type ? or "help" for help, type "exit" to quit ttIsql.
All commands must end with a semicolon character.


Command> connect "DSN=DemoDataStore";
IM002: Data source name not found and no default driver specified
The command failed.
Command> connect "DSN=DemoDataStore";
Connection successful: DSN=DemoDataStore;UID=fee;DataStore=/home/fee/TimesTen6/DemoDataStore;PermSize=16;
(Default setting AutoCommit=1)

Command> create table customer
> (cust_number integer not null primary key,
> first_name char(12) not null,
> last_name char(12) not null,
> address varchar (100) not null);

Command> describe customer;

Table FEE.CUSTOMER:
 Columns:
 *CUST_NUMBER INTEGER NOT NULL
 FIRST_NAME CHAR (12) NOT NULL


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    select * from v$sql_plan where hash_value = (select sql_hash_value from v$session where sid = 1111);
    ÆäÖÐidºÍparent_id±íʾ ......

oracle ¸ü¸Ä²ÎÊý nls_length_semantics


alter system set nls_length_semantics='BYTE' scope=both
sql>show parameter length
NAME                                 TYPE
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ORACLE parent latchºÍchildren latch

         About parent vs child latches. There is no fundamental low level difference between parent and child latches, they are all small regions of memory modified with atomic test-and-set style opcodes.
You see parent (and solitary) latches from x$ksll ......

Oracle Êý¾ÝÀàÐͼ°´æ´¢·½Ê½

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