Up-to-date cache with EclipseLink and Oracle One of the most useful feature provided by ORM libraries is a second-level cache, usually called L2. L2 object cache reduces database access for entities and their relationships. It is enabled by default i…
Giving date picker calendar option to user for date type fields in Oracle Forms. I am providing you the form (FoxCal.Fmx) and two libraries (General.plx and Calendar.pll). You can download these files by clicking below link: Download Form and require…
最近一直在处理新系统的性能优化问题,这两天特地测试了下oracle 11gR2开始引入的smart flash cache. 其介绍参考MOS文档,How To Size the Database Smart Flash Cache (文档 ID 1317950.1) The Database Smart Flash Cache is a new feature in Oracle Database 11g Release 2 (11.2). The Database Smart Flash C…
commands : show sys connect sys as sysdba or connect system as sysdba logout or disc clear screen or cle screen (utlsample.sql —> unlock scott tables.sql —> all tables data.sql —> add data into tables) connect scott/tiger start C:\utlsample.sq…
转载:http://langgufu.iteye.com/blog/1974211 Problem Description:1.每个表的结构及主键索引情况2.每个表的count(*)记录是多少3.对于创建索引的列,索引的类型是什么?count(distinct indexcol)的值是多少?4.最后一次对表进行分析是在什么时间,分析后,是否又对相关表做过大的操作5.索引最后一次rebuild,是在什么时间,此后对表的操作类型又是什么状况?索引中浪费的空间是多少?6.这些表的存储情况,表的存储参数…
<常用命令参考> 个系统变量值 SQL> show user --显示当前连接用户 SQL> show error --显示错误 SQL> set heading off --禁止输出列标题,默认值为ON SQL> set feedback off --个或更多的记录,回送ON" SQL> set timing on --默认为OFF,设置查询耗时,可用来估计SQL语句的执行时间,测试性能 SQL> set sqlprompt "SQL&…
本文转自:http://izzydev.net/.net/oracle/entityframework/2017/02/01/Porting-to-Oracle-with-Entity-Framework.html We had to port our giant-_ish_, Entity Framework based application to work on Oracle RDBMS (11g, later 12c). We did it. And we learned a lot.…
#!/bin/sh # chkconfig: # description: Oracle auto start-stop script. # # Set ORA_HOME to be equivalent to the $ORACLE_HOME # from which you wish to execute dbstart and dbshut; # # Set ORA_OWNER to the user id of the owner of the # Oracle database in…
手动启动: [oracle@localhost ~]$ sqlplus SQL*Plus: Release 11.2.0.1.0 Production on Wed Mar 26 23:39:52 2014 Copyright (c) 1982, 2009, Oracle. All rights reserved. Enter user-name: sys as sysdba Enter password: Connected to an idle instance. SQL> startup…
public class Test{public static void main (String args []){ java.util.Date a = new java.util.Date();System.out.println(a);java.sql.Date b = new java.sql.Date(a.getTime());System.out.println(b);java.sql.Time c = new java.sql.Time(a.getTime());System.o…
