lol test server

Common SQL Server test questions (1) Question 1 Problem description: create three tables for managing job business training information: S (s #, Sn, SD, SA) s #, Sn, SD, SA stands for student ID, Student name, organization, student age C (C #, CN) C #, CN stands for course number, course name SC (s #, CN respectively #, C #, g) s #, C #, and g respectively represent the student ID, the number of the electiv

circulating table, get the logical reading should be TEMPB of a full table read, 100 logical reads plus 700 rows multiplied by tempa full table read (1 pages), is 700 logical reads, total is 800 logical reads.--Swap the order of joins and look at the execution cost:SELECT *from TEMPB b INNER LOOP JOIN Tempa Aona.string = b.string OPTION (Force ORDER)/*Table ' Tempa '. Scan count 1, logical reads 700Table ' TEMPB '. Scan count 1, logical reads 100*/Sure enough, as expected.So in this hypothetica

Ping (Packet Internet groper) is one of the most frequently used tools in network testing, which determines whether downlevel connections between two or more network nodes are available, and provides basic network performance statistics that can help diagnose network problems related to communications.The language format for the ping command is as follows:[[email protected] ~]# Ping host name or IP1. Determine Network device system availabilityUse the ping command to

1.socket Server Building Ideas 1) Purpose: Understanding the socket server working mechanism 2) Train of thought: Create socket--connect the socket join pool--processing receive information, handshake action, send information 2.socket Server Code Note: Copy to php file, direct command line can run, no additional support required Special note: In order to be ab

organization name? [Unknown]:javalover_jadyer * @see What is the name of your city or region? [Unknown]: Chongqing * @see What is the name of your state or province? [Unknown]: Jiangbei District * @see The unit's two-letter country code is what [Unknown]:zh * @see Cn=sso.jadyer.com, Ou=http://blog.csdn.net/jadyer, O=javalover_jadyer, l= Chongqing, st= Jiangbei District, C=zh right? [No]:y * @see enter Copyright NOTICE: This article for Bo Master original article, without Bo Mast

: 5.55 [Kbytes/sec] received #平均每秒网络上的流量 to eliminate the problem of prolonged response time due to excessive network trafficConnection Times (MS)Min MEAN[+/-SD] Median maxConnect:0 4 1.3 4 6Processing:11 1784 2708.6 95 9018Waiting:5 1784 2708.7 95 9018Total:11 1788 2709.3 99 9022Percentage of the requests served within a certain time (MS)50%User response time is less than Ms 66% 1269 #66 % user response time is less than 1269 milliseconds 75% 3275 #75% User response time is less than 3

The person who writes the program often needs to analyze whether the SQL statement that has been written has been optimized, and how fast the server responds, this time it needs to use the statistics state value of SQL to view it. by setting statistics we can view the system situation when executing SQL. The options are Profile,io, time. Introduced as follows:SET STATISTICS profile on: Displays the time, in milliseconds, that is required to parse, com

time = 31 milliseconds, elapsed time = 615 milliseconds. Manager's: SQL Server Execution Time: CPU time = 16 milliseconds, elapsed time = 547 milliseconds. CPU time = 47 milliseconds, elapsed time = 491 milliseconds. CPU time = 32 milliseconds, elapsed time = 436 milliseconds. CPU time = 47 milliseconds, elapsed time = 416 milliseconds. PS: In doing a topic today, the manager gives a difficult problem, although made, but performance is not optimized.

Tags: Isolation server CTI Isolation level href ase button www nextIn your database setup interface, there is a test connection button to check: Confluence can connect to your database server The database character set and isolation level are correct Your database user has the correct database permissions Once the above

|+-----+-----------+--------+3 rows inch Set(0.00SEC) MySQL>Exitbye4. SummarizeThe text of this text connection is: http://blog.csdn.net/freewebsys/article/details/50600352 without the consent of the blogger cannot be reproduced.Bo main address is: Http://blog.csdn.net/freewebsysTidb feeling is still not on the train of thought still is very good.Can simulate MySQL. The use of the difficulty is greatly reduced, at the same time performance is also the leverage.After all, also NoSQL, data query

One Security Test for a server in Sogou (getshell + simple internal detection) During the Dragon Boat Festival, SGSRC sent zongzi and felt a burst of tears. So these days they planned to perform a penetration test on Sogou, although the Intranet has been successfully roaming, but the environment that hurts and is later found, it will not continue: ([My SGSRC numb

Websocket server handshake protocol test webpage code, websocket handshake The test webpage code is as follows:

port number, to modify the port number can go into the nexus-2.1.2-bundle\nexus-2.1.2\conf\ open nexus.properties file, modify the Application-port property value is available.Default user name and password: admin/admin123, log in to view,Nexus Warehouse types are divided into the following four kinds: Group: Warehouse Group, hosted: Host, Proxy: agent,virtual: dummyHow to add and remove is no longer described in detail, input http://127.0.0.1:8081/nexus/content/groups/public/,maven setting.xm

Label:To test SQL performance:One, by setting statistics to view the system situation when executing SQL. Options: Profile, O, time.SET STATISTICS profile on: Displays the time, in milliseconds, that is required to parse, compile, and execute the query.SET STATISTICS IO on: Reports information about the number of scans per table referenced in the statement, the number of logical reads (pages accessed in the cache), and the number of physical reads (th

Cacti is a set of graphic analysis tools for network traffic monitoring developed based on PHP, MySQL, SNMP, and RRDTool. Cacti Chinese version uses snmpget to obtain data and use RRDtool to draw images. You do not need to understand the complex parameters of RRDtool. 1. Configure the httpd server configuration file# Vim/etc/httpd/conf. d/cacti. confAlias/cacti/var/www/cactiDirectoryIndex index. phpAllowOverride allOrder deny, allowDeny from allAllow

The test first selected Darwin streaming Server (DSS) for Windows: Http://dss.macosforge.org/downloads/DarwinStreamingSrvr5.5.5-Windows.exe1-Install the Perl environment.2-Install Darwin streaming Server.Start-All Programs-Accessories-right-click Command Prompt, and then select Run as Administrator in the pop-up menu. Then use the DOS command to go to the Extract directory, and then enter "install" to insta

Download speedtest.pywget https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.pyGive Execute permissionLS-l speedtest.pychmod u+/usr/local/bin/speedtest-cliPerformspeedtest-Execution process[Email protected] ~]# speedtest- from choopa, LLC (IP) ... Retrieving Speedtest.net server list ... Selecting best servers based on ping ... Hosted by Fdcservers.net (Miami, FL) [3.1611.099 1042.22 mbit/ 996.87 Mbit/sSpeedtest

problem, welcome to discuss. ---------------------2016-09-14----------------------------------- Setting the MARIADB 10.1 database is not case sensitive () Modify /etc/my.cnf.d/server.cnf, add Lower_case_table_names=1 (1 for case insensitive, 0 sensitive----Linux environment) under [mysqld] View the default boot status for all services in the current Linux system under each RunLevel chkconfig–list (Double horizontal line) Restart MySQL Service Service MySQL Restart View

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Tags: blog sql perform Baidu backup. NET Issue log CsdnIssue one: SQL Server database Backup Restore methodHttp://www.cnblogs.com/zgqys1980/archive/2012/07/04/2576382.htmlIssue two: Unable to execute backup LOG because there is currently no database backuphttp://blog.csdn.net/aojiancc2/article/details/46316451Issue three: Restoring a database failed backup set a database backup is different from an existing databaseHttp://jingyan.baidu.com/article/fb4