data center interview questions

between InnoDB's primary key index and other indexes?# What are some good books to recommend?# # Book List> [MySQL technology insider InnoDB Storage engine]. Kang> [High-Performance MySQL (2nd edition) Chinese version]. Schwartz= = Other = =# What about data structures and algorithms? Do you think it's useful? Where is the good book to recommend?# In addition to PHP, which language is your strengths, can be used in production?# Do you have any intere

using parallelism in Core Data is that each NSManagedObjectContext must be accessed only from the process in which it was created . What is the difference between POST and GET for HTTP?The request for a get type is idempotent according to the HTTP protocol, while the POST request has side effects, that is, get is used to get some resources, and post is used to change some resources, which may create new resources or update existing resources.A

Android Development (+)Copyright NOTICE: This article for the Dream-finddreams original article, please pay attention to: Http://blog.csdn.net/finddreamsFollow Finddreams Blog: http://blog.csdn.net/finddreams/article/details/44301359In the previous article we have learned some basic questions about the Android written test,[Android Development interview by--2. Common Android Basic pen

0x10 basic issues that embedded programmers should know C language testing is an essential and effective way to recruit embedded system programmers. Over the years, I have both participated in and organized many such tests. During this process, I realized that these tests could provide a lot of useful information for both the interviewer and the subject. Besides, I did not talk about the interview pressure, this test is also quite interesting. From t

(i) Description1. document Some of the programming questions (Python) that you encounter when interviewing a test engineer. 2, review the interview process, do a summary.(ii) title1. Input: JSON {"A": "AA", "B": "BB", "C": {"D": "DD", "E": "EE"}} output: Dictionary {' A ': ' AA ', ' B ': ' BB ', ' d ': ' DD ', ' e ': ' EE '}1 defconversion (n,the_dict):2 forKey,valueinchN.items ():3 #if value i

You must prepare the Python programmer interview questions in advance! (Answer and resolution), python programmer You must prepare for these questions before releasing "Python programmer interview". After the article, in response to the strong requirements of the majority of programmers and friends, xiaobian compiled a

From: http://blog.csdn.net/txgc1009/article/details/6700830 The purpose of this article is not to provide guidance for the job interview for C/C ++ programmers, but to analyze the connotation of the interview questions technically. Many interview questions seem simple, but

| | | | user | 0 | PRIMARY | 2 | User | A | 4 | NULL | NULL | | BTREE | | | +-------+------------+----------+--------------+-------------+-----------+-------------+----------+----- ---+------+------------+---------+---------------+ 2 rows in set (0. XX sec) 11. What is a CSV table?A: CSV is a comma-separated value (comma-separated values) or an abbreviation that is also known as a character-delimited value (character-separated values). CSV tables store

In our previous course, we introduced PHP interview questions about thinkphp, as well as 2017 of the most comprehensive PHP interview questions and answers summary, many of the PHP interview questions are oral, there are many writ

What kind of php interview questions does the company usually offer? How difficult is it, such as the question, some basics, and less data structures and algorithms ~~, There are many interview questions that have been posted in this section. you can refer to them. there are

understand the process of solving the problem, and find out what the individual has done, how to do, and what has been harvested. This is the accumulation of experience. The company ultimately needs to contribute to the work of the staff, so the need for experienced people to help solve the problem, then the ability to solve problems and thinking is very important. For students who do not have much experience, such as a new graduate or an intern, then they need a good foundation and some person

special place where constants are placed. -Program End Release 5 Code area of the program, storing 2 binary code. The variables defined in the function body are usually on the stack, and the allocated memory functions such as malloc, Calloc, realloc, etc. are allocated on the heap. The global amount is defined in the body of all functions, and after the static modifier is placed in the global zone (static zone), the static variable defined in the body of all functions is valid in the file and c

data recovery surface questions 1. What is the condition of MySQL data sheet easily damaged? A sudden power outage in the server caused data file corruption. Force shutdown, without first shutting down the MySQL service and so on. 2. What is the main phenomenon after the

As last blog mentioned (soft interview questions-Latest), Some outsourcing company, like chinasoft, beyondsoft, vinceinfo, Hisoft, wicresoft, etc. all the process of interview is the same, if you pass the interview of these company, according to the condition of the project to decide whether you are recommended to Micr

(avoid loss of modification) 2) Level two block protocol: increase transaction T on the basis of the first level blocking protocol must read the data R before reading the lock, you can release the read lock after reading (to avoid loss of modification and read dirty data) 3) Level three block protocol: increase the transaction T on the basis of the first level blocking protocol the lock must be read before

so file not foundNoclassdeffounderror: You can find the right class at compile time, but you can't find the right class at runtime.Iv. outofmemoryerror (Memory overflow)Cause:1, the amount of data loaded in memory is too large, such as the last time to remove too much data from the database.2, the collection class has a reference to the object, after use is not emptied, so that the JVM can not be recycled.

virtual function? 6. What is the difference between stdcall and cdecl? There are also the C ++ interview questions of that pure US-funded enterprise. The questions are relatively biased, including class member pointers, temporary objects when the parameters are objects, and the template is special, it is recommended that you read Objective c ++ and the English C

memory, can be controlled by the parameter max_heap_table_size the memory table size, set this parameter, you can limit the memory table maximum size.2. If the data is temporary and required to be immediately available, it can be stored in the memory table.3. Data stored in the memory table, if suddenly lost, will not have a substantial negative impact on the app service.What kinds of

something to talk About.Node. JS interview questions What is the Error-first callback mode? How to avoid "callback hell"? What is Promises? What tools unify the code style of the team? Why is a unified code style important? When should I use npm? When should I use yarn? What is the pile code (stub)? Please describe an application scenario! What is a test pyramid? Please ill

the reuse of the cell without confusion. After the data is configured, by updating the constraint, the frame of the last control can be determined only by determining the height that the cell actually needs, and caching it, the next time it is acquired, the judgment exists, and if it exists, it returns directly. Therefore, it is calculated only once.20. How does the UITableView calculate the content height? Why does the proxy method that gets the row