... System.EventArgs e)
{
// Create the DataAdapter to retrieve schema information.
SqlDataAdapter da = null;
if (primaryKeyRadioButton.Checked)
da = new SqlDataAdapter(GETPRIMARYKEYCONSTRAINTS, ... constraint in the current database.
Table 6-10. REFERENTIAL _CONSTRAINTS information schema view
Column name Data type Description
CONSTRAINT_CATALOG nvarchar(128) Database name
CONST...
...
moving average).
Variable
A variable moving average is an exponential moving average that automatically adjusts the
smoothing percentage based on the volatility of the data series. The more volatile ... 21 (e.g., a 200-day moving average is very similar to a 9-month
moving average, because there are approximately 21 trading days in a month).
Moving averages can also be calculated a...
... Because in a data warehouse we are usually in complete control of when data is changed, we can
arrange the backups as part of the load process.
Backing up all the data in a database is known as ... backups after
every data load.
Restoring the Database
An up-to-date database backup is a valuable tool in case of system failure but also when an issue
with the load process occurs. Man...
... this approach for character animation has also increased. The main
challenge that an animator is confronted with is to create sufficient detail in order
to generate an character animation with a ... style to an initial
keyframed animation. Then, a different approach to create a character animation
is proposed: the animator starts the animation with keyframing, a method that he
is famil...
...
mySqlConnection State has changed from Open to Closed
The InfoMessage Event
The InfoMessage event fires when the database returns a warning or information message
produced by the database. ... System.Data.SqlClient;
class StateChange
{
// define the StateChangeHandler() method to handle the
// StateChange event
public static void StateChangeHandler(
object mySender, Sta...
... command.
SqlCommand cmd = new SqlCommand(sqlText, conn, tran);
// Create the DataAdapter and CommandBuilder.
SqlDataAdapter da = new SqlDataAdapter(cmd);
SqlCommandBuilder cb = new SqlCommandBuilder(da); ... preventing users from reading data being changed by a
user. Locks are acquired and released by user actions; they are managed internally by
database software.
A locking h...
...
SP0811_Update
Used to update the table TBL0811 with the changes made to the DataSet passed in
as an NText input parameter @data. The parameters @data and @datadeleted
contain an XML representation ... StoredProcedureMultipleRowsForm_Load(object sender,
System.EventArgs e)
{
ds = new DataSet( );
// Create the DataAdapter.
SqlDataAdapter da = new SqlDataAdapter("SELECT * FR...
... doesn't shoot himself in the foot.
7.2 Back Up and Verify a SQL Server Database
Backing up a database is probably one of the most important features to incorporate into
your application. ...
Backup Action This property allows you to specify what type
of backup that you want to take place. The
choices are SQLDMOBackup _Database,
SQLDMOBackup_Differential,
SQLDMOBac...
... object from SQL- DMO to accomplish this task.
It's all well and good to be able to back up and verify a SQL Server database, but what
about being able to restore the database if necessary? ... choices are found in the
SQLDMO.SQLDMO_RESTORE_TYPE namespace and are
SQLDMORestore _Database, SQLDMORestore_Files,
SQLDMORestore_Log.
Database This property allows you to specif...
... hợp DatabaseRoles
ắ Tập hợp DatabaseRoles ch a đối tợng DatabaseRole a ra vai trò
đặc quyền bảo mật cơ sở dữ liệu trong SQL Server.
ắ Cơ sở dữ liệu Roles trong SQL Server có thể ch a một ... nguồn.
ắ Tạo cơ sở dữ liệu SQL Server
1. Tạo đối tợng Database.
2. Thiết lập thuộc tính Name c a đối tợng Database.
3. Tạo ra đối tợng DBFile.
4. Thiết lập thuộc tính Name...