apexsql plan

(); Firsttime+ = 15*1000; //Schedule the alarm!Alarmmanager am =(Alarmmanager) Getsystemservice (Alarm_service); Am.setrepeating (Alarmmanager.elapsed_realtime_wakeup, Firsttime,15*1000, sender);The above code sends a broadcast event to repeatingalarm every 15 seconds, and a message is displayed on the screen after Repeatingalarm accepts it.For events with schedule, one or more times, you can call Alarmmanager's Cancel method to cancel the schedule alarm event, and the following code cancels mu

The Reorder activities example has four related activitives:reorderonlaunch, Reordertwo,reorderthree, Reorderfour. Where Reorderonlaunch is the main activity,reorderonlaunch start Reordertwo, Reordertwo starts reorderthree,reorderthree. At this time, the "Back stack" of the activity has the following status:Reorderfour want to start reordertwo again, at this time with two implementation methods, one is to start a new reordertwo above the Recordfour, which is the default behavior of StartActivity

The Local service Controller uses LocalService as a "Started" service, which is much simpler than the "Bound" service, Localserviceactivities.controller started the local Service, it basically doesn't matter localservice.StartService (new Intent (Controller. this, LocalService. class));LocalService can choose to stop itself, this example is by calling StopService to stop the service, if you start the service in this example, there is no stopservice, the service will run in the background, Even

PHP programmer's technical growth plan and php programmer's plan Original article address According to the development tracks of many PHP/LNMP programmers and their personal experience, this article abstracts many programmers who are confused about the future, especially those who are blind and confused about technology learning, the technical requirements of PHP programmers at each stage are summarized to

PHP programmer's technical growth plan and php programmer's plan According to the development tracks of many PHP/LNMP programmers and their personal experience, this article abstracts many programmers who are confused about the future, especially those who are blind and confused about technology learning, the technical requirements of PHP programmers at each stage are summarized to help many PHP programs co

----Java1 Java languageFinish all Tij exercises, post to GitHub, and complete a number of technical posts for points of interest.2 Java Virtual machine3 Java concurrency----Design PatternsTake martial arts as the background, completed 20 technical blog, introduce design patterns. The design pattern in the martial arts world----algorithmLeetcode in the title and publish it to GitHub.----Server TechnologyConcepts such as high concurrency HA cluster cache load balance.Server-side technology is impo

(!isdigit (CH)) {if (ch== '-') f=-1; Ch=getchar ();}while (IsDigit (CH)) x=x*10+ch-' 0 ', Ch=getchar ();return x*f;}void Insert (int x,int y,double z) {E[++tot].obj=y; E[tot].c=z; E[TOT].PRE=HEAD[X]; Head[x]=tot;}void Dfs (int u,int fa) {S[u]=1; int mx=0;for (int j=head[u];j;j=e[j].pre) {int v=e[j].obj;if (V!=fa!vis[v]) {DFS (V,U);S[U]+=S[V];Mx=max (Mx,s[v]);}}Mx=max (MX,SUM-MX);if (mx}BOOL Go (int u,double mid) {int up=0;for (int j=head[u];j;j=e[j].pre) {int v=e[j].obj;if (Vis[v]) continue;Dep

If the project manager cannot solve the resource allocation problem, the project progress plan will not succeed. When most of the activities in a project are similar to other activities that have previously been executed, the Key Path Method (CPM) is usually used for planning. The estimation of the CPM activity duration is usually based on the duration data and uses the average value of the previous project activity duration. The estimation of

boyfriend? Can't I find it? After reading this article, we can see that no one dares to ask for it, no company wants it, and you can't imagine it. Besides, I have to wait for another three years at huagong, which is actually a place to go to bed. Big companies should all focus on graduate students. Look, this is the spiritual victory of Self-comfort. If you have any ideas about the advantages and disadvantages of reading and researching by girls, please let me know that I cannot afford the mora

+ python, The sunbench program has been initially available and can be controlled as freely as Python, making it easier for beginners.If you want to set 0 to a high value, directly start sunbench, and then input gpio write 0 high, and so on, for non-programmed useCurrently, the following functions are available ):A. Set gpioB reads gpio dataC latencyD OutputCan be processed in batches and run directly2. Get the Arduino function library or something, and then reference this library during compil

I just spent two hours writing an article. After I click the "post" button, all the text content will be cleared. Is it because it has been lost? But I really didn't have a Green Dam. Well, at least this has aroused the impulse to write again. It seems that csdn is actually engaged in technology and can only be released in Sina. The preliminary plan for the summer vacation is as follows to ensure that all are done. 1:. NET + sqlserver 2005 is us

2018 Annual Plan Goal 1. Read "Self-control" and put it into practice (January ~ March reading, full year practice) Key Results 1.1 reading complete Book Key results 1.2 actively try out examples that are appropriate for you Key results 1.3 effectively improve self-control (at least require to be able to do not see the network fantasy novel, Sleep before the wee hours every morning, preferably before 11 o'clock) Goal 2. Project Management Learni

Inaccurate MySQL execution plan-Overview, mysql execution plan The execution plan for the Mao MySQL optimizer is often inaccurate, but not optimal (cpu + io )??? Too many factors :: The information of information_schema is regularly refreshed. In many cases, it is not the most authentic, or even the difference is very large (when it is not a mountain peak, make

There are many ways to view execution plans. I will introduce them one by one in my blog in the future. This article describes the first method. You can use the explain plan command to view the execution plan.1. log on to the database with an hr user[Oracle @ ENMOEDU ~] $ Sqlplus hr/oracle @ ENMOEDUSQL * Plus: Release 11.2.0.3.0 Production on Thu Apr 10 00:11:00 2014Copyright (c) 1982,201 1, Oracle. All rig

New Employee Training The importance of a new employee training New Employee Training, also known as induction training, is a process in which an enterprise changes its employees from social personnel to enterprise personnel. It also integrates employees from outside the Organization into the organization or within the team, and become a member of the team. Employees gradually become familiar with, adapt to the organizational environment and culture, clarify their Role Positioning,

Framework Plan essay I. Background and vision, Framework Plan essay vision It has been 11 years since I registered my blog. In fact, I forgot how I registered my blog. Afterwards, I never remembered writing my own blog. Recently, I am working on my own architecture plans, and I am gradually guiding the back-up for coding, and I plan to write my own. net-based ORM

Explanation of MySQL execution plan, mysql execution planExplain syntax Explain select ...... Variant: 1. explain extended select ...... Decompile the execution plan into a SELECT statement and run show warnings to obtain the query statement optimized by the MySQL optimizer. 2. explain partitions select ...... Used to EXPLAIN the Partition Table Information contained in the execution

View the Oracle Execution Plan and the oracle execution plan1. PL/SQL explain Plan window Advantages: Disadvantage: limited information2. explain_plan It is easier to optimize a sentence.3. sqlplus Run the following command in Sqlplus: Set autotrace on Select * from emp; After the data is displayed, follow the execution plan: The advantage of this s

,Let's build this one. Index: CREATE index idx_col2_col3 on Teststatistics(col2,col3)Executes a query that is estimated to be 4127.86 rowsThen drop the index above and continue creating an index: Create index idx_col3_col2 on Teststatistics(col3,col2)Note that the order of COL2 and COL3 is inconsistentContinue execution of the above query (the query condition is unchanged, the data is unchanged, only the index column order has changed), this time is estimated to be 2414.91 row Query conditions,

To add, if you want to do a SQL automatic audit tool, where can I start?1, through the Sql*plus tool in the explain PLAN for judgment, the use of Dbms_xplan. Display displays.2, through the Sql*plus tool in the SET autotrace command display3, Sql_trace, in the database global (performance problem, is basically a waste of options), or to the current session definition Sql_trace, or use Dbms_system. Set_sql_trace_in_session gets the sql_trace of the oth