Quản lý redo log files
... redo log files Qu n tr viên database c n ph i quy t NOARCHIVELOG cho database Ch nh t ch ARCHIVELOG hay ch NOARCHIVELOG V i ch NOARCHIVELOG, online redo log files s b ghi è m i online redo log ... REDO LOG FILES nh s lư ng Online redo log files xác nh s lư ng online redo log files s d ng cho phù h p v i database ta c n ph i ki m tra v i nhi u c u hình khác Trong m t s trư ng h p, m t database ... c Vi c tách bi t archive log files online redo log files ph n ĩa khác nhau, có th làm gi m b t xung t gi a background process ARCH LGWR Các data files online redo log files nên t ph n ĩa khác...
Ngày tải lên: 09/10/2013, 13:20
... components Data and Signals Usually use digital signals for digital data and analog signals for analog data Can use analog signal to carry digital data Modem Can use digital signal to carry analog data ... audio Analog Signals Carrying Analog and Digital Data Digital Signals Carrying Analog and Digital Data Analog Transmission Analog signal transmitted without regard to content May be analog or digital ... DC Component Data Rate and Bandwidth Any transmission system has a limited band of frequencies This limits the data rate that can be carried Analog and Digital Data Transmission Data Entities...
Ngày tải lên: 16/02/2014, 08:20
... Redo Log File Groups ALTER DATABASE ADD LOGFILE GROUP ('$HOME/ORADATA/u01 /log3 a.rdo', '$HOME/ORADATA/u02 /log3 b.rdo') SIZE 1M; log1 a.rdo log2 a.rdo log3 a.rdo log1 b.rdo log3 b.rdo Group 7-9 log2 b.rdo ... Redo Log File Members ALTER DATABASE ADD LOGFILE MEMBER '$HOME/ORADATA/u04 /log1 c.rdo' TO GROUP 1, '$HOME/ORADATA/u04 /log2 c.rdo' TO GROUP 2, '$HOME/ORADATA/u04 /log3 c.rdo' TO GROUP 3; log1 a.rdo log2 a.rdo ... online redo log files • Outline the structure of online redo log files • Control log switches and checkpoints • Multiplex and maintain online redo log files • Manage online redo logs files with...
Ngày tải lên: 23/03/2014, 00:20
Chapter 3 Data and Signals pptx
... Signals 3.3 Note Data can be analog or digital Analog data are continuous and take continuous values Digital data have discrete states and take discrete values 3.4 Note Signals can be analog or digital ... digital data refers to information that has discrete states Analog data take on continuous values Digital data take on discrete values Topics discussed in this section: Analog and Digital Data Analog ... Note To be transmitted, data must be transformed to electromagnetic signals 3.2 3-1 ANALOG AND DIGITAL Data can be analog or digital The term analog data refers to information...
Ngày tải lên: 29/03/2014, 11:20
IEC 61158 3 data link service definition
... 3.8.3.88 virtual topology connection mode topology assigned by the Bus-configuration DLMS-user, which need not map directly to physical topology 3.9 3.9.1 Type 7: Additional Data Link Service terms ... DL/DLM_status: Local resource not available or not sufficient 4.4.18 LS DL/DLM_status: Local service not activated at DLSAP or local DLSAP not activated 4.4.19 MSRD DLS: Send and Request Data with Multicast ... the link NOTE 3.5.6 A device may contain more than one node DL-subnetwork series of nodes connected by PhEs and, where appropriate, DL-routers 3.5.7 DLPDU Data Link Protocol Data unit NOTE A DLPDU...
Ngày tải lên: 04/04/2014, 12:28
Lesson 3 Data binding
... Binding data to DataGridView, GridView Using DataSet object: DataGridView1.DataSource = dataset; DataGridView1.DataMember = "TableName"; Using DataTable object DataGridView1.DataSource = datatable; ... Viewing data using a DataView Sorting and filtering data using a DataView Searching data in a DataView Slide 26 Creating DataView object (p.396) The DataView is a customized view of a DataTable ... Databindable Sorting, filtering, searching, editing, and navigation Create a new DataView: DataView view = new DataView (); DataView view = new DataView (DataTable dt); Create a DataView...
Ngày tải lên: 13/05/2014, 12:19
chương 3 data sets
... liệu tạo lớp DataSet • XLXeDataSet.NhanVienDataTable • XLXeDataSet.XeDataTable • XLXeDataSet.PhanCongDataTable • XLXeDataSet.NhanVienRow • XLXeDataSet.XeRow • XLXeDataSet.PhanCongRow 46 DataSet kiểu ... Khái niệm DataSet Lớp DataSet Lớp DataTable Lớp DataColumn Lớp DataRow Constraints Primary key Lớp DataRelation DataSet kiểu mạnh Khái niệm DataSet DataSet • DataSet đối tượng cho ... lưu liệu kèm theo DataSet (vd thời gian DataSet tạo, …) Lớp DataSet Tạo đối tượng DataSet Cách 1: Dùng constructor DataSet ds = new DataSet(); DataSet ds = new DataSet("TenDataSet"); • Chú ý:...
Ngày tải lên: 28/05/2014, 17:58
Báo cáo khoa học: " Buccal mucosa carcinoma: surgical margin less than 3 mm, not 5 mm, predicts locoregional recurrence" pps
... Hematological Oncology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan 5Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei, Taiwan 6Department of Radiation Oncology, ... surgery + concurrent chemoradiotherapy; NOS, not otherwise specified Table Stage distribution in 110 patients with buccal mucosa carcinoma, n (%) Pathology stage (n, %) pN0 pN1 pN2 pN3 I (25, 22.7%) ... key findings In this study, two major findings indicated that surgical margin ≤3 mm, not mm, was a useful pathological parameter for predicting locoregional recurrence in patients with buccal mucosa...
Ngày tải lên: 09/08/2014, 09:20
Principles of GIS chapter 3 data processing systems
... levels of data correctness For instance, an important aspect of data correctness is data entry checking: making sure that the data that is entered into the database is sensible data that does not contain ... amount of data, yet simple in terms of the type of data Relational databases are not very good at storing more complex types of data In particular, and from a geographic perspective, they are not setup ... available data sources and define the format in which the data will be organized within the database This format is usually called the database structure After its design, we may start to enter data...
Ngày tải lên: 21/10/2014, 10:09
slike bài giảng hệ thống máy tính công nghiệp - bùi quốc anh chương 3 data acquisition systems
... Chemo-resistors Ch3 - DAS 37 Analog and digital sensors • Analog sensors: – Cho tín hiệu liên tục biên độ thời gian không gian – Hầu hết đối tượng vật lý, theo tự nhiên, tín hiệu analog • Examples: Temperature, ... Embedded System Computer Desktop: database and networking Ch3 - DAS 8/26/2012 3.1 DAS Overview • Operate: – – – – – – – Process Sensor Conditioner MUX S&H and ADC ES Database system Ch3 - DAS 3.1 ... known voltage is applied to the resistor ends – The contact is attached to the moving object of interest – The output voltage at the contact is proportional to the displacement • Notes – Non-linearities...
Ngày tải lên: 24/10/2014, 12:20
Removing Large Files and Log Rolling
... exist, execution continues CHAPTER 40 ■ REMOVING LARGE FILES AND LOG ROLLING #!/bin/sh LOGFILE=./my .log if [ ! -f $LOGFILE ] then echo "Nothing to exiting." else You’ve already seen the use ... Jun 18:21 37l5152 .log -rw-rw-r rbpeters rbpeters 449184 Jun 18:21 770tref .log -rw-rw-r rbpeters rbpeters Jun 21:25 really_big .log This procedure can be used to rotate log files For example, ... 37l5152 .log -rw-rw-r rbpeters rbpeters 449184 Jun 18:21 770tref .log -rw-rw-r rbpeters rbpeters 1104249096 Jun 21:22 really_big .log The following command is one, cp /dev/null really_big .log is another,...
Ngày tải lên: 05/10/2013, 08:51
Quản trị tablespaces và data files
... tablespace datafile Data files M i m t tablespace có th bao g m m t hay nhi u data files, file thu c h i u hành dùng lưu tr d li u tablespace Các data files có m t s tính ch t sau: M t data file ... tablespace V$TEMPFILE Thông tin v tempfiles, bao g m c s hi u tablespace user s h u tablespace DBA _DATA_ FILES Hi n th datafiles thu c tablespaces DBA_TEMP _FILES Hi n th tempfiles thu c temporary tablespaces ... Thêm m i data file vào tablespace Thay i dung lư ng data files Ho c ta có th s d ng câu l nh SQL can thi p sau: ALTER TABLESPACE tablespace ADD DATAFILE filespec [autoextend_clause] [, filespec...
Ngày tải lên: 09/10/2013, 13:20
The JSP Files (Part 3) - Black Light and White Rabbits
... will be executed at least once − regardless of whether or not the conditional expression evaluates as true Doing More With Loops The JSP Files (part 3): Black Light And White Rabbits int bingo ... Seven, I Say 15 The JSP Files (part 3): Black Light And White Rabbits The upshot? parseInt() and toString() are your best friends when converting between string and numeric data types in JSP You ... Next time, we'll be exploring the JSP Response object, used to process data from HTML forms so you don't want to miss that one! Note: All examples in this article have been tested on Linux/i586 with...
Ngày tải lên: 23/10/2013, 00:15
Statistical Description of Data part 3
... void tptest(float data1 [], float data2 [], unsigned long n, float *t, float *prob) Given the paired arrays data1 [1 n] and data2 [1 n], this routine returns Student’s t for paired data as t, and its ... have #include void ttest(float data1 [], unsigned long n1, float data2 [], unsigned long n2, float *t, float *prob) Given the arrays data1 [1 n1] and data2 [1 n2], this routine returns Student’s ... Different Variances void ftest(float data1 [], unsigned long n1, float data2 [], unsigned long n2, float *f, float *prob) Given the arrays data1 [1 n1] and data2 [1 n2], this routine returns the...
Ngày tải lên: 24/10/2013, 15:15
3 Using Data Guard Broker and Enterprise Manager
... reserved Data Guard Broker: Management Model Data Guard Broker Configuration Broker-controlled databases Primary database Instances 3-6 Standby database Standby database Standby database Standby database ... interface Data Guard Configuration Standby site Standby site Standby site Primary site Configuration files Archived redo logs Configuration files Standby database Primary database Online redo logs Log ... database Standby database Standby database Standby database Standby database Standby database Standby database Instances Copyright © 2006, Oracle All rights reserved Data Guard Broker: Architecture...
Ngày tải lên: 26/10/2013, 20:15
Module 3: Using ADO.NET to Access Data
... a DataSet Note A DataSet is not a recordset A DataView is more analogous to a recordset DataSetCommand Objects While the DataSet object provides a tool for in-memory data storage, you need another ... Access Data Using DataViews Topic Objective To explain the role of DataViews in accessing data from a database by using DataSets Lead-in To access data from a DataSet, you need DataViews ! DataViews ... DataReaders: SQLDataReader for SQL data, and ADODataReader for ADO data The DataReader object is database specific The behavior for the SQLDataReader may differ from the behavior for the ADODataReader,...
Ngày tải lên: 27/10/2013, 07:15
Tài liệu ADC KRONE - White Paper - Data Center - 3 principles of Data Center Infrastructure Design (with n pptx
... the life of your data center The Three Principles of Data Center Infrastructure Design The Three Principles of Data Center Design When you understand the three principles of data center design, ... existing data center space is likely the most expensive and disruptive problem your organization can face Expanding the physical space of a data center can cost more than the original data center ... outside world, huge streams of data are transferred to and from equipment areas at extremely high data rates The infrastructure must consistently support the flow of data without errors that cause...
Ngày tải lên: 10/12/2013, 03:15
Tài liệu Multimedia Data Mining 3 pdf
... various data given the hypothesis, and the observed data themselves © 2009 by Taylor & Francis Group, LLC 74 Multimedia Data Mining First, let us introduce the notations We shall write P (h) to denote ... the log- averaged inverse probability on the unseen data, i.e., i,j P = exp[− n′ (di , wj ) log P (wj |di ) i,j n′ (di , wj ) ] (3.21) where n′ (di , wj ) denotes the counts on hold-out or test data ... parameters α and β that maximize the (marginal) log likelihood of the data: M L(α, β) = d=1 log p(wd |α, β) As described above, the quantity p(w|α, β) cannot be computed tractably However, the variational...
Ngày tải lên: 10/12/2013, 09:15