oracle java programmer 1 certification

, the rest is basically the completion of the next step. There are no precautions. In fact, the installation of Oracle is always relatively simple. After the installation, we can use Oracle. Click Click SQL plus to run. By default, Oracle will give us a username and password: Scott and tiger. But for the sake of security. The user name and password are locked

Tags: 11g OCP database Oracle Certification Exam Exam QuestionsQUESTION 1You notice the performance of the database have degraded because of frequent checkpoints.Which resolve the issue? (Choose.)A. Disable Automatic checkpoint TuningB. Check the size of the redo log file size and increase the size if it is smallC. Set the Fast_start_mttr_target parameter as per the advice given by the MTTR AdvisorD. Decrea

that all submitted data is written to the data file during a consistent shutdownInstance recovery time:Refers to the time required to push the last checkpoint (checkpoint location) of the data file to the latest SCN recorded in the control file. Administrators can control the time by setting the mttr target and resizing the redo log group.MTTR:Mean time to Repair, that is, the mean duration of repair. Refers to the average repair time for repairable products, which is the time between failure a

Java programmer cultivation: Logging (1/3) and java programmer Cultivation Preface: As the first topic of the blog "Java programmer Cultivation", I plan to write the following three art

? Baidu a bit,"Turn compatibility into Vista, go to eclipse and discover that you can enter a name for a new project, turn off Eclipse, cancel the compatibility, go in, find a new input, it's that simple"This method can, seems to be the reason for the Chinese package, although I would like to unload, but the tutorial is based on the Chinese-made IDE, or strictly follow this tutorial to it. 囧2, the following are the default, create a project to complete! There is a system library that estimates a

. Multiple words, the first letter of each word should be capitalized;Example: HelloWorldB: Variable name, method name: First letter lowercase, multiple words, start with the second word, capitalize the first letter;C: Package (folder) Name: All lowercase, even if multiple words, all letters all lowercase;D: Constant Name: All letters uppercase, multiple words, in the middle with an underscore _ separated;Example: Student_age3. Class name and variable name use "noun", method name with "verb"Iden

Some time ago I started to learn some basic knowledge about oracle. To facilitate exercises and operations, I installed an Oracle 10 Gb. After the installation is complete, the current database is directly deprecated. The card is terrible. The card can only be used for surfing the Internet. At that time, I was too busy to do anything else, so I never care about it. Together with the last Internet cafe. Thes

form of a script Set up "Turn on or turn off Oracle services. TXT" To add the following code: @echo off title Oracle Service Management CLS Color 2f goto Menu:menu CLS Echo. =-=-=-=-=oracle Service Management =-=-=-=-= Echo. Echo. 1 Open service echo. Echo. 2 off the service echo. Echo. 3 Exit Echo. Echo. =-=-=-=-=-

area). SGA includes three parts:1. Data Buffer to avoid repeated reading of common data;2. The log buffer increases the speed of adding, deleting, and modifying data, and reduces disk read/write speed; 3. Share the pool to stop compiling the same SQL statement, improving the SQL Execution speed. Another part of the Oracle database instance is some background processes, which mainly include:

Dark Horse programmer-java basics-basic knowledge (1), dark horse java ------ Android training, java training, and hope to communicate with you! ------ A java keyword is a word defined in the programming language in advance and gi

CloudDocker and VirtualizationMicro-Service ArchitectureV: Performance OptimizationAny out-of-details PPT Architect is bullying, up can be a strategist, down to solve the first-line performance problems, Java technology system, need to understand:Performance Index SystemJVM TuningWeb TuningDB tuningVI: Bottom-level knowledgeFrom the architecture design, to the application layer tuning, and then in-depth understanding of the underlying principles, sol

and the addition of constantsBYTE B1 = 3,b2 = 4,b;B = B1 + b2;//compilation failed, variable, type promoted first, b1+b2 result int typeb = 3 + 4; Correct, constant, calculate the result first, see if it is within the byte range, do not error02.26 result calculation after casting data overflowbyte B = 130; Is there a problem? What do you do if you want to assign the correct value? How much is the result?A: There is a problem, 130 is out of byte range, you can use cast byte B = (byte) 130;Result

Use super and this to access objects and constructors Use abstract classes and interfaces Handling Exceptions Differentiate among checked exceptions, unchecked exceptions, and Errors Create a try-catch block and determine how to exceptions alter normal program flow Describe the advantages of Exception handling Create and invoke a method that throws an exception "Recognize common exception classes (such as NullPointerException, Arithmeticexcpetion, arrayinde

example:What exactly is boxing and unpacking, boxing is that the compiler performs a boxing operation after the underlying type is changed to the corresponding object type, and the reverse is the case. The following blog is a special introduction to Java Boxing and unpacking to share with youHttp://www.cnblogs.com/dolphin0520/p/3780005.html= = and equals I used almost every day, before this I did not care too much about the differences, and later loo

Tags: import roc view oracl standard ACL http www. ProgrammingOriginal: http://www.cnblogs.com/hanzongze/p/oracle-catalog.html . NET Programmer's Oracle Series (1): Navigation directory . NET Programmer's Oracle Series (2): Preparing a test environment . NET Programmer's Or