sg500 52p

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Tip 20. How to handle fixed-length primary keys

multiple conflicting changes to different objects of the same "entity" to get into the wrong situation.So why did it go wrong?It is generally not possible for you to make mistakes, but there is a possibility of error. Here's why ...In the Entity Framework we "identify" based on the value of the EntityKey (aka Primary key) in the CLR and we do not make any autoincrement for you, which is not like a database.This means that if the primary key of the product entity is a nchar (10) Type of ProductC

Hack h3c S5120 Console password

Use the console to log in to the device prompt forUsername:PasswordPower cycle Restart the device, pressCtrl + BGo to the Boot programStarting ...************************************************************************* ** H3C s5120-52p-si bootrom, Version 113 ** *************************************************************************Creation Date:jun 1 2009CPU L1 cache:32kbCPU Clock Speed:333mhzMemory SIZE:128MBFlash SIZE:128MBCPLD version:002PCB ve

SED single-line script Quick Reference (Stream Editor) page 1/2

'/^. \ {65 \}/d' # method 2, a simpler method# Display part of the text-starting from the row containing the regular expression to the end of the last rowSed-n'/regexp/, $ P'# Display part of text -- specify the row number range (from 8th to 12th rows, including 8 and 12 rows) Sed-n'8, 12p' # method 1Sed '8, 12! D' # method 2# Display rows 52ndSed-n '52p' # method 1Sed '52! D' # method 2Sed '52q; D' # method 3, which is more efficient in processing l

Huawei switch changes port from trunk to access error resolution

When I recently tried to change the interface of the Huawei s2300-52p switch from the previous trunk to access, the changes were unsuccessful and the error message was as follows:650) this.width=650; "src="/e/u261/themes/default/images/spacer.gif "style=" Background:url ("/e/u261/lang/zh-cn/ Images/localimage.png ") no-repeat center;border:1px solid #ddd;" alt= "Spacer.gif"/>[Zgk-bg-ethernet0/0/6]dis This#Interface ETHERNET0/0/6Port Link-type TrunkPor

SED single-line script Quick Reference (Unix stream editor)

'/BBB/B '-E'/CCC/B'-e d Gsed '/./{H; $! D ;}; x;/AAA \ | BBB \ | CCC/B; D' # only valid for GNU sed # Display rows containing 65 or more characters Sed-n'/^. \ {65 \}/P' # Display rows with less than 65 characters Sed-n'/^. \ {65 \}/! P' # method 1, which corresponds to the above script Sed '/^. \ {65 \}/d' # method 2, a simpler method # Display part of the text-starting from the row containing the regular expression to the end of the last row Sed-n'/regexp/, $ P' #

Basic types of memory storage in X86 architecture, in byte order

* P + 2: 1* P + 3: 0* P + 4:-52P: 0012ff70P + 1: 0012ff71P + 2: 0012ff72P + 3: 0012ff73P + 4: 0012ff74 Read a exercise question: Exercise Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 # Include " Stdio. h " 2 Void Main () 3 { 4 Union { Char A [ 10 ]; 5 Int I; 6 } U; 7 8 Int * P = ( Int * ) (U. [ 1 ]);

Huawei switch command Summary

Huawei switch command Summary System-view Display version Display diagnostic information: display diagnostic-informationDisplay current system configuration: display current-configurationDisplay System save configuration: display saved-configurationDisplay interface Information: display interfaceDisplay route information: display ip routing-tableDisplay VLAN information: display vlanDisplay spanning tree information: display stpDisplay MAC address Table: display mac-addressShow ARP table informa

Security 04:nagios monitoring combat, monitoring overview, Nagios monitoring Services

[[email protected] nagios-4.2.4]# make allMake installMake Install-initMake Install-commandmodeMake Install-configMake install-webconfMake Install-exfoliation#ls/usr/local/nagiosBin etc libexec Sbin share Var Third, install the Monitoring plug-in (software developers write good script)TAR-ZXF nagios-plugins-2.1.4.tar.gzCD nagios-plugins-2.1.4./configureMakeMake install#ls/usr/local/nagios/libexec/check_*Iv. start of monitoring services4.1 Starting the Service#/etc/init.d/nagios Status | Sta

"Symfoware NATIVE" database operation

Tags: symforware database nativeSymfoware Native DepartmentThe grammatical rules of common elementsCharacters: Numbers (0~9), English characters (a~z, a~z), special characters (,, (, =,%), Extended text (@, ¥, #), national characters;Constants: String constants, national string constants, DateTime constants, time interval constants, signed constants;Note: "--" or "/*...*/";Ii. Types of dataString type:CHARACTER (N)CHAR (N)CHARACTER VARYING (N)CHAR VARYING (N)VARCHAR (N)n:1~32000, default is 1;Na

Sed single-line Script Quick Reference (stream editor) 1th/2 page _linux Shell

gsed '/./{h;$!d;; x;/aaa\| bbb\| Ccc/b;d ' # only for GNU S Ed is valid # Displays rows containing 65 or more characters Sed-n '/^.\{65\}/p ' # Displays rows containing 65 characters Sed-n '/^.\{65\}/!p ' NB Sp # method 1, corresponding to the above script sed '/^.\{65\}/d ' N Bsp NB Sp # method 2, simpler one The method # of the point displays part of the text-from the start of the line containing the reg

Sed single-line Script Quick Reference Chinese version (Unix stream editor) _linux Shell

;/ccc/!d ' # Show paragraphs containing "AAA", "BBB", "CCC", any of the three strings (in any order)Sed-e '/./{h;$!d} ' E ' x;/aaa/b '-e '/bbb/b '-e '/ccc/b '-e DGsed '/./{h;$!d;}; x;/aaa\| bbb\| Ccc/b;d ' # is only valid for GNU SED # displays lines containing 65 or more charactersSed-n '/^.\{65\}/p ' # displays lines containing 65 charactersSed-n '/^.\{65\}/!p ' # method 1, corresponding to the above scriptSed '/^.\{65\}/d ' # method 2, a simpler way # Display part of text-from the start of th

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