Tài liệu Define Defaults and Constraints pptx

... to use defaults and constraints to their full potential and how to create them in Visual Studio .NET. You have started down the path of handling your business rules by creating tables and setting ... life easier for your users and suggest what values they could use, and more importantly, what values are acceptable. How do you do this by defining defaults and constraint...

Ngày tải lên: 14/12/2013, 20:16

... the ENABLE and DISABLE clauses in both the CREATE TABLE command and the ALTER TABLE command. D The CASCADE clause disables dependent integrity constraints. Introduction to Oracle: SQL and PL/SQL ... table structures and constraints. D Change column widths, change column datatypes, add columns, add or drop constraints, and enable or disable constraints. DROP TABLE D Remove row...

Ngày tải lên: 24/01/2014, 10:20

... dash. emphasis, brevity and, 33 colon and, 43, 46, 47 comma and, 43, 51 dash and, 43, 57, 58 dash vs. semicolon, 58 italics for, 41, 63 lists, 42 on action, 28, 30 parallelism and, 41 parentheses and, 57 positions ... examples are highly technical and therefore harder to understand, but technical editors and other technical publishing professionals must understand grammar, punctuat...

Ngày tải lên: 10/12/2013, 12:15

... data services by using Transact-SQL, manage and maintain databases, configure and manage security, monitor and optimize databases, and install and configure SQL Server. Introduction 9 ... situations where you can use XML and related technologies to design entire solutions. Module 7: Formatting and Transforming: XSL and XSLT Module 8: Using XQuery to Link and Query...

Ngày tải lên: 10/12/2013, 16:15

... computer as an IP address and a port number. The IPEndPoint has two constructors - one that takes an IP Address and Port number and one that takes a long address and port number. Since we have ... application to read the data at that time. Well, Windows is an event driven system and the notification system seems an obvious and best choice here. So, the two applications that ne...

Ngày tải lên: 11/12/2013, 18:15

... disk space, and copy the wonderworks-v2.0 package to it. Managing NFS and NIS 179 If necessary, export the directory via a new entry in /etc/dfs/dfstab and the shareall command. 3. Change ... developers, and no doubt other non-Microsoft implementors, have often resorted to using packet sniffers between existing Windows and NT clients and servers to deduce the protocol for...

Ngày tải lên: 12/12/2013, 11:16

... will appear. 2. Hold down the Shift Key and select both tblCustomers and tblCustomerPhones. Click the Add button to add the tables to the diagram, and then click the Close button. You will ... column CustomerID is the primary key in Customers and a foreign key in Orders. Note Database diagrams are the main graphical way to view, edit, and print relationships. You will find...

Ngày tải lên: 14/12/2013, 20:16

... common way to solve this problem is to make the fields private and add an accessor method and a modifier method to respectively read and write the value of each private field. The modifier methods ... it does not keep its data private. Public data is a bad idea because its use cannot be checked and controlled. For example, the ScreenPosition constructor range checks its parameters,...

Ngày tải lên: 15/12/2013, 00:15

... physical, electronic, and electromechanical devices that are thought of and recognized as "“computers"” The second part is software – the programs that control and coordinate the activities ... to those parts of the hardware in which calculations and other data manipulations are performed, and to the internal memory in which data and instructions are stored during th...

Ngày tải lên: 21/12/2013, 20:15

... Dissemination Standard (SDDS), and Indonesia and Thailand have established hyperlinks from the IMF Dissemination Standards Bulletin Board (DSBB) to their respective national economic and financial ... representative posts in Korea and Thailand (and the expansion of the existing post in Indonesia); and various activities through the IMF's newly opened Asia and Pacific Re...

Ngày tải lên: 22/12/2013, 17:15