Tài liệu Altering tables and contraints ppt

... None Altering Tables and Constraints 12Ć19 Renaming and Truncating a Table Additional DDL commands include the RENAME command, which is used to rename a table, view, sequence, or synonym, and ... them. Introduction to Oracle: SQL and PL/SQL Using Procedure Builder12Ć28 Altering Tables and Constraints 12Ć23 Summary Data definition commands (DDL) allow you to create, modify, r...

Ngày tải lên: 10/12/2013, 16:16

... running a Unix operating system and using an encryption algorithm that Crack supports. The traditional Unix standard is DES encryption, and this is what Crack is best at handling. However, in recent ... easier to use and audit passwords on Windows NT and Windows 2000. The following are some of the new features. •Support for Windows 2000 - LC3 now runs cleanly on Windows 2000 and c...

Ngày tải lên: 10/12/2013, 14:16

... Start and end time for regular classroom activities ! Any extended hours for working on labs ! Estimated time and duration of meals and breaks ! Restroom location ! Parking facilities and ... 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 Que...

Ngày tải lên: 10/12/2013, 16:15

... // See if we have text on the IP and Port text fields if(txtIP.Text == "" || txtPort.Text == "") { MessageBox.Show("IP Address and Port Number are required to connect ... application is generally a server that keeps listening to the incoming requests and the other application acts as a client and makes the connection to the server application. The serv...

Ngày tải lên: 11/12/2013, 18:15

... statement to populate a DataSet object named myDataSet: SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = "SELECT CustomerID AS MyCustomer, CompanyName, ... CustomerID = ALFKI CompanyName = Alfreds Futterkiste Address = Obere Str. 57 Mapping Tables and Columns In Chapter 3 , "Introduction to Structured Query Language (SQL),...

Ngày tải lên: 14/12/2013, 18:15

... 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 the data types of the columns in the tables. ... between tables. Now you want to make 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 de...

Ngày tải lên: 14/12/2013, 20:16

... Comparing Fields and Methods First, let's recap the original motivation for using methods to hide fields. Consider ... 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, but no ... later origin.X += 10; There is no doubt that, in this case, usi...

Ngày tải lên: 15/12/2013, 00:15