xcraft plus one

the SYS user and system user Oracle installation automatically generates SYS users and system users (1), sys user is superuser, has the highest privileges, has the SYSDBA role, has the permission to create database, the user's default password is Change_on_install (2), the system user is a management operator, and the permissions are large. With the Sysoper role, without the CREATE DATABASE permission, the default password is the manager (3generally speaking, for database maintenance, using Syst

"C + + Primer Plus English version of the sixth edition," said. It is recommended to buy this one, this is the upper and lower fascicle. Moreover, the publication time is the latest 2015, buy back found online errata basically have been corrected, the very individual error did not affect the understanding, good ah! And found that the wording is particularly simple, reading is also smooth.Electronic version (PDF):C + + Primer

Let's look at the effect that the comma and the plus sign print separately in print.Here take Python3 as an example 1 Print ("Hello" + "World") HelloWorld 1 Print ("Hello", "World") Hello World A plus sign is found here to concatenate strings and commas to concatenate strings with spaces. Tr

Adblock Plus is a popular plug-in for screen ads in Chrome and Firefox, which previously didn't apply to IE browsers. Adblock Plus Now finally officially announces that they are adding support for IE browsers. There may be a lot of users who don't know much about Adblock Plus. In fact, this plugin is very powerful, it is not only dedicated to remove those annoyi

1, HOSTType the host command to switch from the Sql*plus environment to the operating system environment to perform operating system commands and press Ctrl+d to return to the Sql*plus state.2, DISCONNECT and connectThe DISCONNECT command, as the name implies, disconnects the current user from Oracle, and then you can type the Connect command and enter it with a different username.3, ShowYou can view the 68

OPPO R7 plus how to load a card? You need to know this before you load the card. 1. Find a small hole in the side panel of the mobile phone and insert it with a paperclip to eject the card slot.2. If you want to use two mobile cards, that is, dual SIM card, please look at the image below 3. If only one cell phone number is used, please look at the image below OPPO R7 Plus SIM card Installation Tutori

Step 1: We first award the IPHONE6 Plus mobile phone to the computer and then we click on itunes on the computer and then we see the itunes interface detects our Iphone6 plus there's an IPhone button in the upper right corner of itunes. Step 2: We click on Iphone6 Plus in the upper right corner and click "Summary" now select "Manage music and video manua

　　Picture plus watermark software one: Photoshop Photoshop, as the world's powerful image processing tool, do not say watermark, any image processing technology can be achieved. Picture plus watermark software Two: Magic Hand of Light and shadow Convenient text and watermark capabilities The text watermark can be arbitrarily dragged. Horizontal, vertical row, glow, stroke, shadow, background and other e

Sql*plus is the most commonly used CMD interface for Oracle management databases, where the Help system provides quick guidance and assistance in executing commands that are installed by default during Oracle installation. Sometimes this feature is lost due to some unexpected reasons, and the following error occurs when using the Help system:sp2-0171: The Help system is not available.So that it brings a lot of inconvenience and trouble. Here's how to

Preface: After installing the Oracle client, SQL Plus and PL/E could not connect to the remote Oracle database, possibly for the following reasons:Connection not on SQL plus:1 Possible causes: Before the Oracle database client was installed and not uninstalled cleanly, SQL Plus uses the configuration of the previous Oracle client, causing the connection to notWor

Tags: help view sql in OracleSometimes when using sql*plus forget some of the use of the command, in fact, we do not have to go to the place to check, we just need to view in the Sql*plus to be able to,Use Help |? ParameterFor example, in Sql*plus:Sql> Help ColumnCOLUMN------Specifies display attributes for a given column, such as:-Text for the column heading-Alignment for the column heading-Format for Numb

Replace variables and definition variables in SQL * Plus, and sqlplus Replace variable Replace variables in SQL * Plus are also called substitution variables. They are generally used to temporarily store relevant data and pass values between SQL statements. Generally, replace variables with the or prefix. You can use the replace variable to create a common script or exchange it with the user. As follows:

SQL * Plus command tip 1: SQL * Plus command to bind a variable to operate www.2cto.com SQL> var job varchar2 (20) SQL> exec: job: = 'sh _ cler' PL/SQL procedure successfully completed. SQL> select job_id, employee_id from emp where job_id =: job; SQL> print jobJOB 1_sh_clerk 2, displaying the size of the row and page variables www.2cto.com SQL> SHOW linesize pagesizelinesize 80 pagesize 143, set 80 charact

IPhone6 and IPhone6 Plus have been on the market for some time, although the mainland has not started a dull pain, but still for the IPhone6 and IPhone6 plus the design of the transition and the large-screen era of joy.Today, mainly to mark the following Xib way to fit the IPhone6 and iPhone6 plus screen.1.iphone5 resolution 320x568, Pixel 640x1136,@2x2.iphone6 r

Sqlplus username/password @ is the name of the local network service added to connect to Oracle.C: \ Users \ Haiyang> sqlplus Scott/tiger @ myoracle9i SQL * Plus: Release 11.2.0.1.0 production on Sunday February 20 22:12:15 2011 Copyright (c) 1982,201 0, Oracle. All rights reserved. Connect:Oracle9i Enterprise Edition Release 9.2.0.1.0-ProductionWith the partitioning, OLAP and Oracle Data Mining optionsJserver release 9.2.0.1.0-Production SQL> Desc t

The method for calculating the three numbers is( a ^ b ^ c ) + ( ( ( a b ) | ( b c ) | ( a c ) ) ... But if you want to ask where this formula comes from...Addition... Before learning how to start, how can we get started... First, you need to know that the numbers in the computer are stored in binary... the numbers you see... in the computer's view are both 0 and 1... We can randomly pick two numbers, such as 123 and 321, and convert them to binary, and then add them together in a vertical wa

Office365 manager plus report Maybe you have just started using Office 365, and you still have many questions about its components. How can you quickly master the usage of various services in Office 365? How do I manage my mailbox? How to monitor mail traffic? You need detailed information about all the components of Office 365 so that they can run without failure. Therefore, you have two default options: powershell script and built-in Office 365 rep

Dst_fname=urlencoder.encode (Dst_fname);Encodes the string dst_fname, but finds that the space is all changed to a plus signDst_fname=urlencoder.encode (Dst_fname);Dst_fname=dst_fname.replaceall ("\\+", "%20"); Deal with the space, we ask for the silly B need space, but do not encode a lot of very special text can not be displayed.Problems encountered: When the file name of the uploaded files there is a space, the Urlencoder.encode method will change

The homepage of quanta plus is http://quanta.kdewebdev.org/. it is a web development tool. It is included in the kdewebdev package. To install quanta plus, download it at http://quanta.kdewebdev.org/releases.php. The other is to use the new software package manager for installation: Go to X-Windows, system-system management-New Software Package Manager;Select a group, drag the right project to the beginnin

The default "" in SQL * Plus indicates the substitution variable. That is to say, as long as the symbol appears in the command, SQL * Plus requires you to enter the substitution value. This means that you cannot input a string containing this symbol into the database or assign it to a variable. For example, the string "SQL plus" system will understand it as a st