docker stats

of the course number and the number of elective, query results in descending order of numbers, query results in descending order of numbers, if the number is the same, in ascending order by course numberSelect CID as course number, COUNT (*) as number from T_scoreGROUP BY CIDOrder BY Count (*) desc,cid45. Retrieve the student number of at least two elective coursesSelect SID from T_score GROUP by SID has Count (*) > = 246. Check the course number and course name of all the students who have enr

The wait state is an important means of isolating SQL Server performance issues, starting at the instance level. You can probably see if SQL Server is in a tight state of resources for some time in the past. It depends on whether you have an effective performance data collection mechanism in place. Sys.dm_os_wait_stats This DMV data is collected from the last boot of the instance. withWaits as ( SELECTWait_type, Wait_time_ms/ +. aswait_time_s, -.*Wait_time_ms/ SUM(Wait_time_ms) Over() aspct,

' Month ' UNION SELECTDate_format (Curdate ()-INTERVAL 9 MONTH),'%y-%m ') as ' Month ' UNION SELECTDate_format (Curdate ()-INTERVAL Ten MONTH),'%y-%m ') as ' Month ' UNION SELECTDate_format (Curdate ()-INTERVAL One MONTH),'%y-%m ') as ' Month ' See the 12-month display: select t.month from past_12_month_view t group by t.month; 2.4 Correlate 2.3 of 12 months ' display data with 2.2 query results SelectV.Month, Ifnull (b.minute,0)minute fromPast_12_month_view V Left Join(Select

there is no serialization, it is not saved to the cache, there is no record.Get_hits: Indicates the number of times the data was successfully obtained.Get_misses: Indicates the number of times the data failed to get.Evictions: The number of cached objects removed from the cache in order to free up space for new data items. For example, objects that are removed based on the LRU algorithm when the cache size is exceeded, as well as expired objects.Bytes_read:memcached The total number of bytes th

/**copyright (c) 2014, College of Computer Science, Yantai University*all rights reserved.* File name: Array statistics score* Wangzhong* Completion Date: 2014.11.23* Version Number: v1.0** Problem Description: Enter the number of students, and enter the student scores, the highest score, the lowest score, the average score, study number* Input Description: Number of students, score* Program output: Highest score, lowest score, average score, school number#include 13 weeks (Array

' a ' values (' Z ', ' C ', ' 2 '); INSERT into ' a ' VALUES (' z ', ' A ', ' 4 ');SQL statements--serial number, ranking select @rownum: [emailprotected]+1 xh,a.name,a.val,if (@lastVal = A.val, @rank, @rank: [emailprotected]) PM, @lastVal: =a.valfrom A, (select @rownum: =0, @rank: =0, @lastVal: =null) b ORDER by a.val;--statistics for Row select Type,name,sum (val) from a GROUP by a.type,a.name;--statistics for column select T.type,if (t.name= ' a ', t.sl,0) A,if (t.name= ' B ', t.sl,0) b,if (

1 Background 1.1 Docker introductionDocker is a container engine project based on lightweight virtualization technology from Docker, the entire project is based on the go language and complies with the Apache 2.0 protocol. Today, Docker can quickly automate deployment of applications within the container, and can provide container resource isolation and security

Docker installation and sharing of common commands and sharing of common docker commands Basic commands 1. To install docker in yum, the root permission is required. Yum install docker 2. Start docker Systemctl start docker. servi

cause the container to exit inevitably. load load an imageFrom a tar archive or STDIN--In contrast to the following Save command, import the image packaged by the following Sava command into the load command login Register or logIn to a Docker registry--Login to your Docker register with the Docker hub registered account [[email protected] ~]#

1 PrefaceSince its inception, Docker has led the technology boom in lightweight virtualization containers. In this trend, Google, IBM, Redhat and other industry leaders have joined the Docker camp. While Docker is still primarily based on the Linux platform, Microsoft has repeatedly announced support for Docker, from p

Docker Quick Start-common docker commands 1. Introduction to docker commands 1. Introduction to docker commands You can run the sudo docker or sudo docker HELP command to view the docker