vsan requirements

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(t_name varchar2(3char));(2) Verify the result of the modificationSql> selecttable_name,column_name,data_type,char_used from Dba_tab_columns wheretable_name= ' TAB_T '; TABLE_NAME column_name data_type char_used -------------------- ----------------------- ------------------------- -----------------------------tab_t t_name VARCHAR2 C (3) Insertion of two Chinese characters sql> INSERT into tab_t values (' China ');1 row created. VARCHAR2 (3 char

Requirements for the character set (collation) on the destination database when implementing the logical replication software1. When the destination database is an Oracle database, it is important to ensure that the character set of the destination Oracle database is consistent with the character set of the source Oracle database.2. When the destination database is a MSSQLSERVER database, it is important to ensure that the destination MSSQLSERVER user

Note: Table of Contents"oracle12c Performance Optimization strategy: Introduction Directory Table "Problem description You've just started using the Oracle database and learned a few things about the various table types available. For example, you can spend choices between a heap organization table, an index organization table, and so on. You want to create a database app, and you need to determine the type of table it uses Solution Solutions Working principle: --

This is my own error record for installing oracle11g to Win7:Checking operating system requirements ...Required result: one of the 5.0,5.1,5.2,6.0Actual results: 6.1I changed the 10g,11g from 32bit to 64bit toss several times, finally found a solution to the method ...Did you see that mistake? is actually caused by the configuration fileLocate the Refhost.xml file (location: database/stage/prereq/db, open the Refhost.xml configuration file and locate

Tags: loop solution nic does not have network configuration network nbsp Local connection. exeTip: Configure Microsoft LoopBack Adapter as your system's primary network adapter. Workaround: Add Hardware, Control Panel, (Win7 and then no hardware added, you can enter it in cmd and enter Hdwwiz.exe to turn on adding hardware) I've also connected this hardware, add new hardware devices, Install my manual list select hardware (advanced), network adapter--Vendor: Microsoft Network card: Microsoft Loo

1. How to view the Eclipse version number: 1) Locate the Eclipse installation directory. 2) go to the Readme folder and open readme_eclipse.html. 3) The second line that readme_eclipse.html renders is the number version number, such as: Last revised June 3, 2015 JDK Requirements for version 2.eclipse: Installing Eclipse is relatively easy, but does involve a few steps and software from at least, different sources. Eclipse is a java-based applicati

importantly, to have a certain database tuning capabilities, such as the reasonable creation of the table structure, to correctly create the index, but also through the use of indexes to reasonably optimize database performance, through the execution plan to analyze and optimize SQL.Because the tuning techniques for various data sheets are not necessarily consistent, advanced programmers are better able to master tuning techniques for multiple databases.In the project development process, the r

Build the project environment in the virtual machine today, steal the lazy, directly copy the table in the native database to the database in the virtual machine, then start the project, project one start prompt: SQLyogTable ' sdmqrt. Qrtz_locks ' doesn ' t existI can not find the table, strange Ah, my native database can not be a little table ah, check the virtual machine in the table also does exist. The problem is coincidentally in the Qrtz_locks table, that is, the dispatch task table, Sprin

Tags: usage. com ges tab field SQL Group color name SelectT. Customer Name,sum( Case whenT. Collection type='First' ThenT. AmountElse 0 End as 'First'),sum( Case whenT. Collection type='tail section' ThenT. AmountElse 0 End as 'tail section') from TableTGroup byT. Customer Name This SQL means to query out all the customer collection information and then group by the customer group and then put all the first amount of this customer in a group and then aggregate the first field to make up

As a complement to functional requirements, the software Requirements specification should also include non-functional requirements, which describe the behavior of the system and the actions performed by the user. It includes standards, specifications and contracts that the product must comply with, details of the external interface, performance

1. Introduction1.1 PurposeThis document first gives a general overview of the overall network structure and functional structure of the whole system, attempts to give the whole software outline from the overall architecture, and then describes the functional requirements, performance requirements and other non-functional requirements in detail. The description of

I. Understanding of requirements and design For beginners, writing requirements and design will face many problems, and the difficulty is self-evident. The difficulty is that you do not know what needs to be written, the content included, the degree of writing, and what needs to be done. For the design stage, how should the design be connected with the needs, and how to design from the needs. HoweverItOn

This book mainly starts with the main problems and difficulties in the practice of software requirement, points out the main methods of the transformation, and then explains the task, main points and concrete means of demand development activities such as requirement definition, demand acquisition, requirement analysis and modeling, writing protocol and requirement verification. The operational points of demand management activities including demand baselines, change management and demand tracki

Do products often write PRD, but without a complete set of writing ideas and framework, the written PRD quality will not be too good, leading to the omission of important information, in the process of the project was developed, the front end, Test spit groove. While this weekend is free, come and comb the logic of writing PRD.first, what is PRD? PRD is the abbreviation for product requirement document, in which it is translated as: Products requirements