sql interview questions for java developers

mathematical score of 2-3 (Requirements display field: Student number, name, subject, score)Answer: Select t3.* from (select top 2 t2.* from (select Top 3 name,subject,score,stuid from Stuscore where subject= ' math ' order by score Desc) T2 ORDER by T2.score) T3 ORDER BY T3.score Desc11. Find out the ranking of John Doe's mathematical achievementsAnswer: Declare @tmp table (PM int,name varchar (), score int,stuid int) insert INTO @tmp select Null,name,score,stuid from Stuscore where subject= '

Multithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from the interview point of view, but you should still have a solid grasp of the basics of

; k ) TestFunction (k, J, i);On the basis of scenario one, this scheme puts the instantiation of the cyclic variables out of the loop, which can further reduce the number of instances of the related cyclic variables, and the scheme time-consuming situation is as follows: Variable Instantiation (number of times) Initialization (number of times) Comparison (number of times) Self-increment (number of times) I 1 1 10 1

Java custom generic interview questions: receive any array to reverse, java custom You can only operate on a certain type for reversal without using the generic type. The Code is as follows: package com.swift.fanxing;import org.junit.Test;public class RenyiReverse { @Test public void test() { int arr[]=new

Label:A few days ago to participate in an interview, interview company to do a set of questions, SQL problem is not difficult, but I was the first to write the wrong, come back, write the next. Simply record it, 1. Title: 2. Test data SELECT * from student; INSERT into student (Name,subject,score) VALUES (' Zhang

The degree to which Java developers can coordinate object-oriented programming thinking with command-line programming depends on the level of ability of the following: Tip (Anyone can write code in command-line form)Dogma (Some people use the "mode-mode" approach, that is, patterns are ubiquitous and identified by name)Emotional state (in the early days, real object-oriented code is more difficult to under

wrapper type , which means that the wrapper type can be converted directly to the base data type , as shown in the following code:int m=100; Integer im=int N=im; The appeal code directly assigns m to the wrapper object IM, which is automatically boxed and then directly assigns the IM to the basic data type N, which is the automatic unpacking. Although the code on the surface is simple and convenient, however, in essence, the container still uses new to create the object, while unpacking is s

Multithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from the interview point of view, but you should still have a solid grasp of the basics of

Frontier Dream Workshop 2017-04-18 18:14 Most of the Java interview is divided into written and interview, the following issues are cutting-edge education small series according to the major IT enterprises interview asked the questions sorted out, such as the need for releva

 original link Connection author : Pankaj translator : Zheng Xudong proofreading : Fang FeiMultithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from the intervi