connecting to a mysql database command line

... ex.Message); } resultTextBox.Text = result.ToString( ); } Discussion A Microsoft Access database password requires that users enter a password to obtain access to the database and database ... attributes in addition to those defined by ADO.NET. To open a database secured by a Microsoft Access database password, use the Jet OLEDB :Database Password attribute in the connection string to specify ... database. The Set Database command from the Tools Security menu is used to set up a database password. The OLE DB provider for Microsoft Jet has several provider-specific connection string attributes...

Ngày tải lên: 24/12/2013, 05:15

... Team LiB ] [ Team LiB ] Recipe 1.4 Connecting to a Secured Access Database Problem You want to connect to a Microsoft Access database that has been secured with user-level security and ... database. The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to a Microsoft Access database secured with user- level security and a workgroup ... defined by ADO.NET. To open a database secured by Microsoft Access user-level security, use the Jet OLEDB:System Database attribute in the connection string to specify the path and filename of...

Ngày tải lên: 24/12/2013, 05:15

... Create a SQL SELECT statement referencing a worksheet or a range in an Excel workbook and execute the statement to fill a DataSet using a DataAdapter or to create a DataReader. For example: ... INSERT INTO [MySheet$] (Field1, Field2, Field3) VALUES ('testdata', 1.234, '09/28/1979'); Retrieve data Use either a DataAdapter or a DataReader to retrieve data from an Excel ... example: CREATE TABLE MySheet (Field1 char(10), Field2 float, Field3 date) Create data You can use the INSERT command, either static or parameterized, to insert data into a worksheet or range:...

Ngày tải lên: 14/12/2013, 18:16

... Manager and Query Analyzer are also shared. The System.Data.SqlClient class cannot automatically discover the port number of a named instance of SQL Server listening on a port other than ... need to understand what a SQL Server or MSDE named instance is and how to connect to one. The sample code contains a single event handler: Connect Button.Click Creates and opens a connection to ... [ Team LiB ] Recipe 1.7 Connecting to a Named Instance of SQL Server or Microsoft Data Engine (MSDE) Problem You want to connect to a named instance of a SQL Server or Microsoft Data Engine...

Ngày tải lên: 14/12/2013, 18:16

... provider can read records from and insert records into a text file data source. The Jet database engine can access other database file formats through Indexed Sequential Access Method (ISAM) drivers ... data adapter to retrieve all rows from text file. The MaxScanRows option indicates how many rows should be scanned to automatically determine column type. A value of 0 indicates that all rows ... provider to access data in a text file. The sample code creates an OleDbDataAdapter that uses the Jet OLE DB provider to load the contents of the text file Categories.txt, shown in Example 1-13 ,...

Ngày tải lên: 24/12/2013, 05:15

... configuration file named TNSNAMES.ORA to locate the Oracle database and determine how to connect to it based on the Data Source or Database attribute in the connection string. An example of an entry ... Oracle Button.Click Creates and opens a connection to an Oracle database using the Oracle .NET data provider. Information about the database is displayed from the properties of the OracleConnection ... to an Oracle database. Solution You can connect to an Oracle database using either the Oracle .NET data provider or the OLE DB .NET data provider. The sample code contains two event handlers:...

Ngày tải lên: 24/12/2013, 05:15

... Label Name Label1 Text SQL Servers ListBox Name lstSQLServers Label Name Label2 7.1 Create a Dialog Box to Connect to a New Database, Including Listing Available SQL Servers and Databases ... sometimes need to connect to various databases. An example of this is a large company that might keep its site information in separate databases in the same-or even different-SQL Servers. Management ... Server and database and then create a new connection based on the selections. Within a database application, it is necessary to allow users to select a SQL Server back end to which to connect....

Ngày tải lên: 21/01/2014, 12:20

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Ngày tải lên: 13/08/2014, 13:20

Ngày tải lên: 24/10/2014, 10:51

... reason, ADO.NET automatically 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 when there's a suitable connection already available. When you close a connection, that connection isn't actually closed; instead, your connection is marked ... System.Data; using System.Data.SqlClient; class ConnectionPooling { public static void Main() { // create a SqlConnection object to connect to the database, // setting max pool size to...

Ngày tải lên: 07/11/2013, 10:15

... 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 ... SqlConnection("server=localhost ;database= Northwind;uid=sa;pwd=sa"); // monitor the StateChange event using the StateChangeHandler() method mySqlConnection.StateChange += new StateChangeEventHandler(StateChangeHandler); ... System.Object class acts as the base class for all classes. In other words, all classes are ultimately derived from the System.Object class. The second parameter is an object of a class that is derived...

Ngày tải lên: 14/12/2013, 13:15

... demonstrates how to store XML data in a text field of a database table and subsequently read it into an XmlDocument using the LoadXml( ) method. Standard database access techniques using a DataAdapter ... da.SelectCommand.Connection); da.UpdateCommand.CommandType = CommandType.Text; da.UpdateCommand.Parameters.Add("@Id", SqlDbType.Int, 0, "Id"); da.UpdateCommand.Parameters.Add("@XmlField", ... sender, System.EventArgs e) { DataSet ds = new DataSet( ); // Fill the Categories table and add it to the DataSet. SqlDataAdapter da = new SqlDataAdapter("SELECT TOP 3 * FROM Orders",...

Ngày tải lên: 24/12/2013, 05:15

... the Command object to add a table to an existing SQL Server database. The C# code is shown in Example 10-8 . Example 10-8. File: AddTableToDatabaseForm.cs // Namespaces, variables, and constants ... Team LiB ] Recipe 10.8 Adding Tables to a Database Problem You need to add a table to an existing database. Solution Use the CREATE TABLE statement. The sample code executes the DDL statement—using ... String createSql = "CREATE TABLE MyTable " + "(MyTableId int IDENTITY(1,1) PRIMARY KEY CLUSTERED)"; SqlCommand cmd = new SqlCommand(createSql, conn); // Create the table...

Ngày tải lên: 21/01/2014, 11:20

... the changes made to the DataSet passed in as an NText input parameter @data. The parameters @data and @datadeleted contain an XML representation of a DataSet containing all updated and added ... Single Stored Procedure to Update Multiple Changes to a SQL Server Database Problem You need to update a SQL Server 2000 database with changes to multiple rows in a DataSet by executing a single ... StoredProcedureMultipleRowsForm_Load(object sender, System.EventArgs e) { ds = new DataSet( ); // Create the DataAdapter. SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM " + TABLENAME, ConfigurationSettings.AppSettings["Sql_ConnectString"]);...

Ngày tải lên: 21/01/2014, 11:20

... Sim- pleProd, and SimpleWtdSum MajSgl+Aggr: Majority vote of MajSim- pleSgl and MajAggr MajPair+Aggr: Majority vote of MajSim- plePair and MajAggr Table 2 gives recall and precision measures for all variations ... lexical database, not tokens in a text corpus. Second, we take an “all-words”rather than a “lexical-sample” approach (Kilgarriff and Rosenzweig, 2000): All words in the lexical database “text” are disam- biguated, ... manual tagging and (only) .24 for a second round of more problematic cases. 6 While the full tagging of the lexical database may make the automatic tagging task appear su- perfluous, the low rate...

Ngày tải lên: 20/02/2014, 18:20

... help—Display Usage Information 42 man—Display a Program’s Manual Page 42 apropos—Display Appropriate Commands 43 whatis—Display a Very Brief Description of a Command 44 info—Display a Program’s Info ... usually set up to automatically display the name of the working directory. Relative Pathnames Where an absolute pathname starts from the root directory and leads to its destination, a relative ... we take along the branches of the tree to get to the directory we want. Pathnames can be spe- cified in one of two ways, as absolute pathnames or as relative pathnames. Let’s deal with absolute...

Ngày tải lên: 19/03/2014, 13:43

... Elements: append(), appendTo(), before(), after(), ã Attributes css(), attr(), html(), val(), addClass() ã Events bind(), trigger(), unbind(), live(), click() $(“p”) Move paragraphs to element ... fadeOut(), toggle(), animate() jQuery Methods We needed a hero to get these guys in line Give $() a selector $(“#myId”) $(“.myClass”) jQuery Methods ã Moving Elements: append(), appendTo(), ... Methods ã Moving Elements: append(), appendTo(), before(), after(), ã Attributes css(), attr(), html(), val(), addClass() ã Traversing find(), is(), prevAll(), next(), hasClass() ã Events bind(), trigger(),...

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