java database interview questions

First, MonologueBefore interviewing others, now it's your turn to find a job, how to say, each interviewer's views are different, interview the way is not the same, for example, I interview others I like to ask the project he used those, and then to use the technology to ask some questions, or some of the scenarios of some technical implementation of the program

? Window.location.href 9.MySQL database, how to optimize? Answer: (1) configuration optimization (server configuration) (2) Build table optimization (table, field settings) (3) query optimization (SQL statement) A: 1, select the most applicable field properties, to minimize the definition of field length, as far as possible to set the field not NULL, such as ' Province, gender ', preferably set to enum 2. Use connection (join) instead of subquery: 3.

Tags: meaning data SQL database ODB details issues HDF cut feature threads1. What are the differences between row and column storage?What are the modes of 2.MySQL database Binlog? What's the difference?3.awk How to print out the number of columns in a file?4.awk How do I specify delimiters, and how do I specify delimiters for cut?5. What happens if one of the disks in HDFs (the amount of data is particularl

Android development interview post-3. common Android advanced pen questions, android advanced Follow finddreams blog: http://blog.csdn.net/finddreams/article/details/44301359In the previous article, we have learned some basic questions about the Android test. Android development interview: 2. Common basic Android test

2018.03.09 Shenzhen le Wei TechnologyI looked at the feeling that the company looks pretty good, interview my husband is also very good, the atmosphere should be very good, but I lack of strength, alas, successive efforts, the following interview in the deep impression of the three questions to write about.Interview Question 1: The

to database using JDBC?Spring Boot provides starter and libraries for connecting to We application with JDBC. Here, we is creating an application which connects with Mysql database. It includes the following steps to create and setup JDBC with Spring Boot.For more information click here.What's @RestController annotation in Spring Boot?The @RestController is a stereotype annotation. It adds @Controller and

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 data structures are there in the Redis database? 5 Types of data s

1 Why did you leave the company?2 What are your best skills?3 What have you solved so far to make yourself feel valuable?4 Basic python issues?5 most familiar frameworks, like Django?6 What do you know about processes, threads, and co-routines?7 understanding of MySQL, common query, index understanding, Federated query, classification usage, design and optimization?8 usage scenarios for non-relational database Redis?9 How to use Message Queuing, under

design of the underlying database, the overall system architecture design and so on. When I am in the face candidate, I usually ask the most recent project related things, there are many candidates will said that the TA himself designed and developed the project, but even what functional modules, System knot structure (note, not the structure) are not answered. Some interviewers, in the interview of som

entire content of the situation load local content, reduce the amount of data transmission, avoid users constantly refresh or jump page, improve the user experienceDisadvantage: Unfriendly to the search engine, the cost of the front-back function under Ajax is large, and the number of requests may increase the cross-domain problem limit;JSON is a lightweight data interchange format, a subset of the ECMAPros: Lightweight, easy to read and write, easy to machine (JavaScript) parsing, support for

Oracle interview questions-Technical This may be an article you have been looking forward to. while paying attention to this part of technical questions, please be sure to read personal questions and answers during the interview. The answer here is not comprehensive. These

the Java 5 annotation.Spring's MVC Framework64. What is the Spring MVC framework?Spring provides a full-featured MVC framework for building Web applications. The spring framework can be easily fused with other MVC frameworks (such as struts), which uses the inversion of control (IOC) to separate the controller logic from the business object. It also allows the request parameters to be bound declaratively on the business object.65.DispatcherServletThe

After returning from the Cisco interview, I reviewed these questions and thought I could answer a few questions. However, it seems that I did not answer well again. I hope you can answer them!1. View on Project Management? As PM, what do you think is the key to project success? 2. What are the opinions on the project documents? How to effectively manage many do

. IntroductionThe 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. Most of the interview questions in this article come from major forums. Some answers to t

Hibernate Interview Questions and answersEssence-a large collection of Hibernate Interview Questions and answers1. What is the matching relationship between the relational data model and the Object Model (multiple choice) in general)A) table corresponds to Class B) record corresponding object C) Table field corresponds

Android common test and interview questions, android Test I. JAVA: (Pending) Ii. Android: 1. Android system architecture 2. Five common la s for Android 3. What are the four main components of Android? 4. Activity Lifecycle 5. Four startup modes of Activity 6. What are the differences between several Service startup methods? 7. BroadCastReceiver usage Mechanism 8

Summary of the latest PHP classic interview questions in 2017 (previous article), and last article in 2017 1. Difference Between Double quotation marks and single quotation marks Double quotation marks are used to interpret variables. Insert single quotes in double quotes. If there is a variable in single quotes, the variable is interpreted. A variable name in double quotation marks must be followed

Php interview questions and answers $ Img = file_get_contents ('http: // www.baidu.com/img/baidu_logo.gif '); File_put_contents('1.gif ', $ img ); Echo ''; ?> 3, Function is_gfriend ($ na, $ nb) { $ Random1 = rand (1/5); // calculate their fate $ Random2 = rand (1, 5 ); If ($ random1 ==$ random2) Retu

Ordinary PHP Programmer pen TestTags: programmer PHP interview 2009-02-06 15:191. Use PHP to print out the day before, the print format is May 10, 2007 22:21:212. PHP code is as follows:$a = "Hello";$b =amp; $a;Unset ($b);$b = "World";echo $a;What is the result?3. PHP code is as follows:$STR = "CD";$ $str = "Landog";$ $str. = "OK";Echo $CD;What is the result?4. Write a code with PHP, implementation does not use the 3rd variable, Exchange $a, $b value,

Spring, hibernate, Struts interview questions from: http://shwenwen.itpub.net/post/34911/486887 How does hibernate work and why?Principle:1. Read and parse the configuration file2. Read and parse the ing information and create sessionfactory3. Open sesssion4. Create transaction Transation5. Persistent operations6. Submit the transaction7. Disable session8. Disable sesstionfactory Why:1. For JDBC access