... HasRows( ) method of the DataReader was introduced in Version 1.1 of the .NET
Framework. It returns a Boolean value indicating whether the DataReader contains at
least one row.
There is also ... variables, and constants
using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
// . . .
// Batch query to retrieve the COUNT of records and
// all ... forward-only, read-only access to a stream of rows from a data
source. It is optimized for performance by reading data directly from a connection to a
data source. As a result, there is no way...
...
Let's take a closer look at the Databases folder, which contains the databases that are
managed by a particular SQLServer installation. For example, my SQLServer
installation manages ...
in that database.
Each SQLServer installation contains the following seven folders shown in the left pane:
•
Databases Contains tools that allow you to access the databases managed by SQL ...
operating system (OS) starts.
Once you've started SQL Server, other programs can access the databases managed by
that SQLServer installation.
Using Enterprise Manager
To administer a database,...
... clicked the Attach Database button.
1. Create a Windows Form.
7.5 Create a Detach/Attach SQLServer Database Dialog Box
Situations sometimes arise that require a database to be attached, detached, ... chosen the database, you can reattach the database by clicking on the tab
labeled Attach Database. You can then type in the name you want to attach the database
as, and click on the Locate File button ... DetachDB and AttachDBWithSingleFile methods to attach and
detach a database.
Comments
You can enhance this routine by allowing for databases that have multiple files to be
attached and detached....
...
SqlDataAdapter da = new SqlDataAdapter(sqlText, conn);
// Add table mappings.
da.TableMappings.Add(" ;Table& quot;, "Orders");
da.TableMappings.Add(" ;Table1 ", "Order Details"); ... Microsoft SQL
Server Books Online.
The GetSchemaTable( ) method of the DataReader also returns all column lengths. The
method returns a DataTable containing column metadata for a DataReader, where ...
foreach(DataTable dt in ds.Tables)
{
schemaInfo.Append(" ;TABLE: " + dt.TableName + Environment.NewLine);
// Create the command to retrieve column information.
cmd = new SqlCommand("sp_help",...
... & Materials
Science at Washington University in St Louis. He received B.S. in Mechanical Engineering from
Shanghai Jiao Tong University in China in 2008 and M.S. in Mechanical Engineering ... VAWT wind farm. The results are
given inTable 4. The optimal layout is the same as that of a HAWT as shown in Figure 9.
Table 4. Optimization results for VAWT wind farm
Optimization Objective ... Conclusion and future work
The results shown in section 5 demonstrate that the layout optimization of a wind farm of HAWT using
GA gives a uniform grid arrangement similar that obtained by Grady et al....
... following frameworks:
(a) A day in the life on an endangered animal
4. Discussing, creating, and thinking ina group, rather than ina whole class context,
can provide a less anxiety-producing ... Cooperative Learning to Integrate
Thinking and Information Technology ina
Content-Based Writing Lesson
Gabriel Tan (Xinmin Secondary School, Singapore)
Patrick B Gallo (SEAMEO Regional Language ... steps.
4. After using computers, students can again analyze and share what they have
learned and done, as well as what they need to do next.
Lesson Plan - Using the Internet for Pre-Writing
Using...
... area, Years and Date are in the Row Labels area, and Units is in the Values area.
If you calculate a running total with Date as the base field:
• The subtotals for Years are automatically hidden ... each sales manager. In your pivot table, Sales
Manager is in the Row Labels area, Category is in the Column Labels area, and Units is in the
Values area (see the table at the left in Figure 3-18). ... formula will not be changed if the calculated
item’s formula is changed.
3.17. Using Formulas: Creating a Calculated Field
Problem
In your pivot table, Rep and Product are in the Row Labels area. In...
... can
have many named instances operating at the same time. You can also Run SQLServer 6.5 or
7.0 as the default instance with one or many SQLServer 2000 named instances running at the
same ... is this particular type
of instance identified?
servername servername\instancename
SQL Server 2000 Administration in 15 Minutes a Week:
Administration Fundamentals
Part 1
by Michael Aubert
www.2000trainers.com ... Mode authentication you are asked to provide a password for the system
administrator (sa) account. This account is available so you can authenticate as a “sysadmin”
via SQLServer Authentication....
... from changing
data being read by a user and preventing users from reading data being changed by a
user. Locks are acquired and released by user actions; they are managed internally by
database ... command.
SqlCommand cmd = new SqlCommand(sqlText, conn, tran);
// Create the DataAdapter and CommandBuilder.
SqlDataAdapter da = new SqlDataAdapter(cmd);
SqlCommandBuilder cb = new SqlCommandBuilder(da); ... SqlCommandBuilder(da);
// Fill tableusing the DataAdapter.
DataTable dt = new DataTable( );
da.Fill(dt);
// Bind the default view of the table to the grid.
dataGrid.DataSource = dt.DefaultView;...
... illustrates how to use a
SqlConnection object to connect to aSQLServer database
*/
using System;
using System.Data;
using System.Data.SqlClient;
class MySqlConnection
{
public static ... using System;
using System.Data;
using System.Data.SqlClient;
class ConnectionPooling
{
public static void Main()
{
// create a SqlConnection object to connect to the database, ... static void Main()
{
// formulate a string containing the details of the
// database connection
string connectionString =
" ;server= localhost;database=Northwind;uid=sa;pwd=sa";...
... StateChange event.
Listing 7.3: STATECHANGE.CS
/*
StateChange.cs illustrates how to use the StateChange event
*/
using System;
using System.Data;
using System.Data.SqlClient;
class ... object.
You can produce information and error messages using the SQLServer PRINT or
RAISERROR statements, which are described in Chapter 4
, "Introduction to Transact-
SQL Programming." ...
StateChangeEventArgs class.
The following example defines a method named StateChangeHandler to handle the
StateChange event. You'll notice that the second parameter to this method is a
StateChangeEventArgs...