Tài liệu Retrieving Constraints from a SQL Server Database docx

... 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...

Ngày tải lên: 26/01/2014, 10:20

... 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...

Ngày tải lên: 23/01/2014, 07:20

... 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...

Ngày tải lên: 13/02/2014, 16:20

... 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...

Ngày tải lên: 21/02/2014, 05:20

... 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...

Ngày tải lên: 14/12/2013, 13:15

... 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...

Ngày tải lên: 14/12/2013, 18:16

... 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...

Ngày tải lên: 21/01/2014, 11:20

... 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...

Ngày tải lên: 21/01/2014, 12:20

... 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...

Ngày tải lên: 26/01/2014, 11:20

... 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...

Ngày tải lên: 10/12/2013, 03:15