oracle tricky questions

Recently uploaded an app, because it is the first time to upload, the time spent on this is no longer than the application of the short-term ah .... Say more is a tear. In order not to let everyone fall into the pit, to share some small experience:1. Use someone else's developer account to upload their own app (I do not have a developer account, so it is borrowed to use), want to use their own mobile phone to test the real machine, encountered the following error:A valid provisioning profile for

Analysis of Three tricky Leetcode interview questions Recently, when I was idle, I click the Leetcode question to do it. I found that some questions are quite interesting and tricky. In the following three questions, each question seems so easy at the beginning! However, aft

A few tricky PHP questions. Try to see if you will fall into the trap. I have seen these questions on the German Q A, and they are very interesting. I will share with you the traps to see if you will fall into it. Question 1 $arr = array(0=>1,"aa"=>2, 3, 4);foreach($arr as $key=>$val){ print($key == "aa" ? 5 : $val);} What is the output result? If the answer is

Oracle Pen questions Oracle DBA face questions and answers (foreign companies)Oracle Database Pen Test DBAOracle Interview Pen test for international large companiesOracle Database DBA Interview Questions1. How many memory layers are in the shared pool?2. How did you find th

Oracle Database Development interview questions, I did not do the test at that time, now with the original questions and answers, oracle Test 1, ID123567810111215 Table Name tt. use SQL to find the non-consecutive IDs in the ID column, for example, 4 which does not exist: -- Create table and data create table tt (id in

Oracle Database exercise example and answer sharing, oracle exercise questions I. Create a table 1. create table empgj (empno number () primary key, ename varchar2 (10), 2.job varchar2 (9), mgr number (), hiredate date, sal number ), comm 3. number (7, 2), deptno number (2, 0); 4. -- 1 5. insert into empgj (empno, ename, job, mgr, hiredate, sal, comm, deptno) va

autoextend on; The tablespace has been created. sql> Create Tablespace Csdb 2 Logging 3 datafile ' D:\app\oradata\orcl\csdb.dbf ' 4 size 2000m 5 Autoextend on next 50M MaxSize Unlimited; The tablespace has been created. Sql> create user Ftuser identified by unicorn406 2 Default Tablespace Csdb 3 temporary tablespace csdbtmp; The user has created. Sql> Grant CONNECT,RESOURCE,DBA to Ftuser; Authorization is successful. Sql> Configuring Listen

Oracle Management and Maintenance. Install, create, start, and close the database Frequently Asked Questions (1) 20070605 Papayas I. Content Overview This article describes how to solve common problems during Oracle Installation and database startup in Linux. This partThe content has been mentioned in more detail in the Configuration Management Server series. Her

The ORACLE tutorial is about Oracle Index. Index is a common Database object. It is set to good or bad, and is used properly, which greatly affects the performance of Database applications and databases. Although there are a lot of materials about indexing usage, DBAs and developers often deal with it, but I found that there are still many people who have misunderstandings about it, so for the common proble

SELECT statement and the contents of another table. Table truncation can be made with the SELECT statementYou want to manipulate Oracle data, which of the following is not a SQL command?A SELECT * from dual; B Set defineC Update emp Set ename = 6543 where ename = ' SMITHERS ';D CREATE TABLE Employees (Empid VARCHAR2 (Ten) primary key);You want to define SQL queries in Oracle. Which of the following databas

The Oracle tutorial you are looking at is: three questions for Oracle Index. Index is a common database object, it is set up and used properly, which greatly affects the performance of database applications and databases. Although there is a lot of data on the use of indexing, DBAs and Developer often deal with it, but the author found that there are still a lot

Questions about creating Oracle jobs through PL/SQL developer 8.0 [transfer] test environment: oracle9i, PL/SQL developer 8.0, PL/SQL developer 7.0 After a colleague created Oracle jobs through PL/SQL developer 8.0, he could not see the jobs folder, but under the dbms_jobs folder. After creating Oracle jobs through PL/

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 questio