database management system reference books

Label:In the current program, there are many places try Catch, program run exception, error and not be perceived, next to this issue to adjust, the principle is that any exception can be perceived, record and then be optimized processing; Serious error exception, must be able to notify the developer at the first time. Scheme:log4j Upgrade to Log4j2For different business, the use of different levels, different carriers of the logging format:1. log file record2. JMS Message push3.

Start with the database, because it's the EF code frist, so all the design is done in the solution project.First the data model beginsI've built four models, User,role,action,actiongroup.The user has actionids in Role,role that stores the ID combination string for the action, Actiongroup as the action group.So as long as you know the role of user, you can find his corresponding action action, to achieve the function of the rights management.In conjunc

For details, visit the software company website www.ecollab.com.cn. During the development of enterprise MIS, data structure changes often occur due to business changes, while custom development systems sometimes cannot adapt to changes in data structures, enterprises are passive in the Process of constantly upgrading their systems. In order to improve the adaptability and flexibility of enterprises and enhance the flexibility of enterprise information systems, enterprises should be able to m

'; Comment on column userz.usfje is ' water amount '; Comment on column use Rz.udfje is ' tariff amount '; Comment on column Userz.uzje is ' total amount of water and electricity '; Comment on column userz.udate is ' payment date ';-- Create/recreate Primary, unique and FOREIGN KEY constraints ALTER TABLE Userz add constraint Pk_uno primary key (UNO) ;　　--Create tablecreate table water ( uno VARCHAR2 (4) Not NULL, wmonth CHAR (6) is not NULL, Wyl number ( 8,2) NOT NULL, usfje num

Date'; Comment on columnShuifei.sjfzt is 'Payment Status'; Comment on columnShuifei.ssyjf is 'last month payment date';Alter TableShuifeiAdd constraintPk_shuifeiForeign Key(UoN)ReferencesUuser (uon);Alter TableShuifeiAdd constraintPk_shuifeiaForeign Key(Mmonth)References Money(Mmonth);Drop Table Money;Create Table Money(Mmonthvarchar2(6) not NULL, Mwater Number(4,2) not NULL, MPower Number(4,2) not NULL); Comment on column Money. Mmonth is 'Payment Month (primary key)'; Comment on column M

Data | Databases as a qualified DBA (database administrator), you need to have a profound knowledge of computer software and hardware, especially the technology within the DBMS. Also have the ability to analyze and solve problems. Give an example. The database application system of an enterprise has been running for a period of time, due to the accumulation of da

Tags: blog http using file data io Art Shing July 27, 2014 22:28:34 GitHub Address: Https://github.com/haoxilu/ServiceManager want to program enthusiasts to change the add ... Development environment: Visual Studio. Net Framework 4.0 Everyone in the software development process, is inseparable from the database, no matter what database you use, will be registered in the

Tags: Java Java Web student management system databaseStudentdb.java:/** * @Title: Studentdb.java * @Package: Com.you.student.system.utils * @Description: * @author: Youhaidong (Zhanghaidong) * @date : 2014-6-16 PM 11:20:51 * @version V1.0 */package com.you.student.system.utils;import java.sql.connection;import Java.sql.preparedstatement;import Java.sql.resultset;import Java.sql.sqlexception;import Java.sql

First, the System review:This system is a simple student management system, and the former do a student management system from the functional mountain, in fact, is the same. The difference is that the underlying storage part of th

The second stage of self-examination textbooks began a few days, and recently have been looking at the database system principle, what function depends on what the transition between models. Indeed a little pressure, but the difficulty is certain, see everyone is so hard to learn, then step up! Here is my summary of the first three chapters of the database ratio

Label:In terms of WinForm, based on the different business, we can use the efficiency of the tool, quickly do a lot of different business systems, a defect management system, want to put the unit Test business specifications, statistics and analysis of each version of the defect information, this chapter to collate these database design and interface design relat

MySQL is fairly simple to use when running a database system, and there is little work required to install and use MySQL. However, no matter what level of expertise you are, MySQL's installer does not run automatically. Someone has to monitor it to make sure it runs smoothly and efficiently, and sometimes it has to know what to do when the problem arises. And MySQL's ma