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retrieving constraints from a sql server database

Design and Implement a SQL Server Database

Design and Implement a SQL Server Database

Cơ sở dữ liệu

... Thiết Kế Một Database Tạo Một User Database Chúng ta có thể tạo một database dễ dàng dùng SQL Server Enterprise bằng cách right-click lên trên " ;database& quot; và chọn "New Database& quot; ... động lại SQL Server hay khi ta disconnect. • Model : Database này đóng vai trò như một bảng kẻm (template) cho các database khác. Ngh a là khi một user database được tạo ra thì SQL Server sẽ ... and jobs). Cấu Trúc Vật Lý C a Một SQL Server Database Mỗi một database trong SQL Server đều ch a ít nhất một data file chính (primary), có thể có thêm một hay nhiều data file phụ (Secondary)...
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Design and Implement a SQL Server Database

Design and Implement a SQL Server Database

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... (template) cho các database khác. Ngh a là khi một user database được tạo ra thì SQL Server sẽ copy toàn bộ cácsystem objects (tables, stored procedures ) từ Model database sang database mới v a ... (SQL) Server nào đó là ta nói đến một Instance c a SQL Server 2000, thông thường đó là Default Instance. Một Instance c a SQL Server 2000có 4 system databases và một hay nhiều user database. ... Sp_help ['object'] Cung cấp thông tin về một database object (table, view ) hay một data type. Sp_helpdb [&apos ;database& apos;] Cung cấp thông tin về một database cụ thể nào đó. Sau đó...
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Specifying Locking Hints in a SQL Server Database

Specifying Locking Hints in a SQL Server Database

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... command. SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder. SqlDataAdapter da = new SqlDataAdapter(cmd); SqlCommandBuilder cb = new SqlCommandBuilder(da); ... 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 software. A locking ... statement. READCOMMITTED Use the same locking as a transaction with an isolation level of READ COMMITTED. READUNCOMMITTED Same as NOLOCK. REPEATABLEREAD Use the same locking as a transaction...
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Using a SqlConnection Object to Connect to a SQL Server Database phần 1

Using a SqlConnection Object to Connect to a SQL Server Database phần 1

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... mySqlConnection.ConnectionString = server= localhost ;database= Northwind;uid=sa; mySqlConnection.ConnectionTimeout = 15 mySqlConnection .Database = Northwind mySqlConnection.DataSource = localhost mySqlConnection.PacketSize ... and workstation ID will be different. Connection Pooling Opening and closing a database connection is a relatively time-consuming process. For this reason, ADO.NET automatically stores database ... stores database connections in a pool. Connection pooling offers a great performance improvement because you don't have to wait for a brand new connection to the database to be established...
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Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc

Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc

Kỹ thuật lập trình

... 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. ... // create a SqlCommand object SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); // run a PRINT statement mySqlCommand.CommandText = "PRINT 'This is the message from ... that handles an event is known as an event handler. You call this method when a particular event is fired. All event handler methods must return void and accept two parameters. The first parameter...
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Tài liệu Specifying Locking Hints in a SQL Server Database doc

Tài liệu Specifying Locking Hints in a SQL Server Database doc

Quản trị mạng

... command. SqlCommand cmd = new SqlCommand(sqlText, conn, tran); // Create the DataAdapter and CommandBuilder. SqlDataAdapter da = new SqlDataAdapter(cmd); SqlCommandBuilder cb = new SqlCommandBuilder(da); ... as a transaction with an isolation level of READ COMMITTED. READUNCOMMITTED Same as NOLOCK. REPEATABLEREAD Use the same locking as a transaction with an isolation level of REPEATABLE READ. ... on a resource. Locks ensure transactional integrity and database consistency by preventing other users from changing data being read by a user and preventing users from reading data being changed...
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Tài liệu To create a Microsoft SQL Server database for OPN Systemô XT Server pptx

Tài liệu To create a Microsoft SQL Server database for OPN Systemô XT Server pptx

Cơ sở dữ liệu

... database to a new database, see the How to export Contact list from McKoi database to Microsoft SQL Server? document. Step 1: Download a shareware database management tool You need a database ... configuration. 4. Navigate to Database > Selection and select the newly created Microsoft SQL Server database for all database selections. How to create a Microsoft SQL Server database for the ... IP Address of the MySQL database machine) Port: <3306> (default MySQL port) Database: (left blank / database is created via the opn_mysql .sql script) How to create a Microsoft SQL Server...
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Designing SQL Server Databases for .NET Enterprise Servers

Designing SQL Server Databases for .NET Enterprise Servers

Cơ sở dữ liệu

... Database Wizard 153Create Database Wizard: Name the Database and Specify Its Location 155Create Database Wizard: Name the Database Files 155Create Database Wizard: Define the Database File Growth ... Configuration 168Using T -SQL to Create and Alter a Database 169Monitoring and Maintenance 171 Database Maintenance Plan Wizard 171Maintenance Plan Wizard: Select Databases 172Maintenance Plan ... 156Create Database Wizard: Name theTransaction Log Files 156Create Database Wizard: Define theTransaction Log File Growth 157Create Database Wizard: Completing theCreate Database Wizard 158Configuring...
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Getting a SQL Server Query Plan

Getting a SQL Server Query Plan

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... SHOWPLAN_TEXT (from the Query Execution category) is ON, SQL Server returns a result set containing detailed information about how the SQL statements are going to be executed rather than actually ... BY CompanyName"; // Retrieve the plan into DataReader. SqlDataReader dr = cmd.ExecuteReader( ); // Iterate over all result sets and all rows to get plan. do { while (dr.Read( )) ... handling of date and time data Locking Alters current session settings for handling SQL Server locking Miscellaneous Alters current session settings for miscellaneous SQL Server functionality...
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Debugging a SQL Server Stored Procedure

Debugging a SQL Server Stored Procedure

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... Use Visual Studio .NET to debug SQL Server stored procedures (in both standalone mode and from managed code). Discussion Debugging a stored procedure in standalone mode You can debug a stored ... 2. Create a connection to the database or select an existing connection. 3. Select and expand the node for the database that contains the stored procedure. 4. Expand the Stored Procedures node. ... [ Team LiB ] Recipe 9.8 Debugging a SQL Server Stored Procedure Problem Given an application that uses a SQL Server stored procedure that is causing errors, you need...
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Transfer Tables Between SQL Server Databases

Transfer Tables Between SQL Server Databases

Cơ sở dữ liệu

... Text Transfer from Database ListBox Name lstFromDB Label Name Label4 Text Transfer to Database ListBox Name lstToDB Label Name Label5 Text Table(s) to Transfer ListBox Name lstTables ... tables between SQL Server databases. This How-To shows how to allow the user to choose multiple tables and copy them from one database to another as well as tables from two different databases ... sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load LoadSQLServers(Me.lstFromSQLServer) LoadSQLServers(Me.lstToSQLServer) End Sub 3. On the lstFromSQLServer and...
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Tài liệu Executing a SQL Server Stored Procedure By Using ActiveX Data Objects doc

Tài liệu Executing a SQL Server Stored Procedure By Using ActiveX Data Objects doc

Cơ sở dữ liệu

... use the ADO Command object, as well as the Parameter object if you are passing parameters. You will create a Command object and supply the command text, which in this case will be the name of ... Listing A. 7 Northwind SQL Server Database: T -SQL for the Stored Procedure Called CustOrdersHist ALTER PROCEDURE CustOrderHist @CustomerID nchar(5) AS SELECT ProductName, Total=SUM(Quantity) FROM ... Command object you are creating-in this case by using the type of ADODB.CommandTypeEnum.adCmdStoredProc. The next step is to create a parameter that the Command object will use. This parameter...
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Tài liệu Determining the Length of Columns in a SQL Server Table doc

Tài liệu Determining the Length of Columns in a SQL Server Table doc

Kỹ thuật lập trình

... Create the connection. SqlConnection conn = new SqlConnection( ConfigurationSettings.AppSettings[" ;Sql_ ConnectString"]); // Create DataAdapter. SqlDataAdapter da = new SqlDataAdapter(sqlText, ... DataSet. DataSet ds = new DataSet( ); // Fill the schema and data. da.FillSchema(ds, SchemaType.Mapped); da.Fill(ds); // Iterate over the table collection in the DataSet. foreach(DataTable ... 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...
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