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

... command. Introduction to Oracle: SQL and PL/SQL Using Procedure Builder12Ć24 Introduction to Oracle: SQL and PL/SQL Using Procedure Builder12Ć20 Altering Tables and Constraints 12Ć13 Adding and ... and is no longer available in the data dictionary. Altering Tables and Constraints 12Ć25 Practice Overview In this practice, you will create, modify, and drop tables related...

Ngày tải lên: 24/01/2014, 10:20

... examples are highly technical and therefore harder to understand, but technical editors and other technical publishing professionals must understand grammar, punctuation, and capitalization in the ... long and respected one. I wish to acknowledge that editorial tradition and the people who established it and trained me in it. I am also grateful to Alberta L. Cox, NASA Ames Resea...

Ngày tải lên: 10/12/2013, 12:15

... 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

... map files and distributing these changes to all NIS servers on a regular basis. Managing NFS and NIS 30 DNS is the standard for hostnames and addresses, and you'll find it handy for ... no control over OSI transport and network, and so it was much harder (and eventually impossible) to get IETF to accept OSI transport and network. Managing NFS and NIS 35 3.2....

Ngày tải lên: 12/12/2013, 11:16

... 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