Tài liệu Using SQL phần 3 ppt

... &apos ;3 North Street' WHERE CustomerID = 'JPCOM'; Figure 3. 23 shows this UPDATE statement, along with a SELECT statement that retrieves the modified row. Figure 3. 23: Using ... SupplierID; Figure 3. 18 shows the results of this SELECT statement. Figure 3. 18: Using the GROUP BY clause to divide rows into blocks You'll learn more about the various S...

Ngày tải lên: 14/12/2013, 13:15

... Products; This example returns 34 . 639 636 ; the average after the UnitPrice values have been increased 20 percent. You can limit the rows passed to a function using a WHERE clause. For example, ... function as SumUnitPrice. Figure 4 .3 shows the results of this SELECT statement. Figure 4 .3: Using the SUM() function to compute the total of the UnitPrice column Using Mathema...

Ngày tải lên: 14/12/2013, 13:15

... all the columns from the Customers table using *: SELECT * FROM Customers; Figure 3. 3 shows the results of this SELECT statement. Figure 3. 3: Using a SELECT statement to retrieve rows ... connected to SQL Server using Query Analyzer, you can use the Object Browser to view the parts of a database, and you enter and run SQL statements using a Query window. Figure 3. 2...

Ngày tải lên: 14/12/2013, 13:15

... ascending order using the ProductName column. Figure 3. 13: Using the ORDER BY clause to order products by ascending ProductName You can explicitly state the order for a column using the ASC ... Multiple Conditions You can use the logical operators shown in Table 3. 3 to specify multiple conditions in a WHERE clause. Table 3. 3: LOGICAL OPERATORS OPERATOR DESCRIPTION a AND...

Ngày tải lên: 14/12/2013, 13:15

... of SQL statements is known as a commit, or committing the SQL statements. Undoing the results of SQL statements is known as a rollback, or rolling back the SQL statements. You can group SQL ... CustomerID = 'CRCOM'; Figure 3. 24 shows this DELETE statement, along with a SELECT statement that demonstrates that the row has been removed. Figure 3. 24: Using an UP...

Ngày tải lên: 14/12/2013, 13:15

... có thể tự ý gán thêm chứng cứ host khi nó nạp một assembly. using System; using System.Reflection; using System.Collections; using System.Security.Policy; public class ViewEvidenceExample ... một tập quyền cực đại tương xứng với mức tin cậy bạn đặt vào publisher. using System; using System.Security.Policy; using System.Security.Cryptography.X509Certificates; public class...

Ngày tải lên: 23/12/2013, 19:15

... localsystem (Fig. 13. 23 ), click OK, and quit Registry Editor. Figure 13. 23: The ObjectName value under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ServiceName 3. Attempt to restart ... Assignment (Fig. 13. 16 ). Figure 13. 16: Restoring the right for the user account to log on as service 7. In the right pane, right-click Log on as a service (Fig. 13. 17 ). Figure 13....

Ngày tải lên: 14/12/2013, 10:15

Ngày tải lên: 14/12/2013, 10:15

... than rounded, as was done in the previous example: SELECT ROUND(1. 234 56, 3, 1); This example returns 1. 234 00, which is 1. 234 56 truncated to three decimal places. You use the SQUARE() function ... example obtains the difference between 12/20/20 03 and 12/22/20 03 in days and returns 2 days: SELECT DATEDIFF(day, '12/20/20 03& apos;, '12/22/20 03& apos;); You use the DA...

Ngày tải lên: 14/12/2013, 13:15

... có sẵn. Bảng 13. 3 liệt kê tên, RID, và giá trị WindowsBuiltInRole cho mỗi nhóm Windows chuẩn. Bảng 13. 3 Tên, RID, và giá trị WindowsBuiltInRole của các tài khoản có sẵn Tên tài khoản RID ... trong các khoản của chứng cứ System.Security.Policy.Publisher. using System; using System.Security; using System.Security.Policy; using System.Security.Cryptography.X509Certificates;...

Ngày tải lên: 23/12/2013, 19:15