[ Team LiB ] Recipe 1.3 Connecting to a Password-Protected Access Database Problem You want to connect to a Microsoft Access database that has a database password. Solution Use the Jet OLEDB:Database Password attribute in the connection string to specify the password.
Chapter 1: Introduction to Database Programming with ADONET
Chapter 2: Introduction to Databases
Chapter 3: Introduction to Structured Query Language (SQL)
Chapter 4: Introduction to Transact-SQL Programming
Chapter 5: Overview of the ADONET Classes
Chapter 6: Introducing Windows Applications and ADONET
Chapter 7: Connecting to a Database
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 a workgroup file. Solution Use the Jet OLEDB:System Database attribute in the connection string to specify the path and filename of the workgroup information file or system database.
The output from this program is as follows: count = 1 Milliseconds = 101 mySqlConnection.State = Open count = 2 Milliseconds = 0 mySqlConnection.State = Open count = 3 Milliseconds = 0 mySqlConnection.State = Open count = 4 Milliseconds
[ Team LiB ] Recipe 1.5 Connecting to an Access Databasefrom ASP.NET Problem You know your connection string is correct, but still can't connect to your Microsoft Access database from your ASP.NET application. What are the differences between connecting from a Windows Forms
Introduction to java programming: Chapter 32 - Java Database Programming's Objectives is to become familiar with the JDBC API; learn how to load a driver, connect to a database, execute statements, and process result sets using JDBC; use the prepared statements to execute precompiled SQL statements.
In Oracle Database, the OracleJVM has a new memory model for sessions that connect
to the database through a dedicated server. Since a session using a dedicated server is
guaranteed to use the same process for every database call, the Process Global Area is
used for session specific memory and object allocations. This means that some of the
objects and resources that used to be reclaimed at the end of each call can now live
Bài 7: KẾT NỐI DATABASE.
1. ADO là gì?
ADO Có thể dung để truy cập DL từ trang web. ADO là công nghệ của Microsoft ADO được viết tắt là ActiveX Data Objects ADO là một thành phần của Active-X ADO tự động cài đặt khi cài IIS ADO là môi trường lập trình giao tiếp với CSDL- database
1. Cách truy xuất database bằng ADO trong ASP.
Cách thông thường để truy cập CSDL từ trang web ASP như sau: 1. 2. 3. 4. 5. 6. 7. Create an ADO connection to a database Open the database connection Create an ADO recordset...
A privilege is a right to execute a particular type of SQL statement or to access another user’s object. These include the right to:
Connect to a database
Create a table
Select rows from another user’s table
Execute another user’s stored procedure
Each system privilege allows a user to perform a particular database operation or class of database operations; for example, the privilege to create tablespaces is a system privilege.
Many books in the documentation set use the sample schemas of the seed database,
which is installed by default when you install Oracle. Refer to Oracle Database
Sample Schemas for information on how these schemas were created and how you
can use them yourself.
Oracle error message documentation is only available in HTML. If you only have
access to the Oracle Documentation CD, you can browse the error messages by
range. Once you find the specific range, use your browser's "find in page" feature to
locate the specific message.
Introducing Visual Studio .NET In the previous sections, you saw programs that connect to various databases, retrieve a row from a table, and display the column values for that row on your computer screen.
Understanding the SqlConnection Class You use an object of the SqlConnection class to connect to a SQL Server database, and this object handles the communication between the database and your C# program.
Part I presents fundamental concepts of data security requirements and threats that
pertain to connecting to a database, accessing and altering tables, and using
applications. In addition, security checklists are provided for DBAs and application
developers, which cover installation preparation, database administration best
practices, and recommendations for developing secure applications.
[ Team LiB ] Recipe 3.9 Finding Rows in a DataView Problem You need to find a row or group of rows in a DataView meeting certain criteria. Solution Use a sorted DataView to find rows using columns that are not part of the primary key. The sample code contains two event handlers: Form.Load Sets up the sample by creating a DataTable containing the Orders table from the Northwind database. A DataView of the table sorted by the CustomerID and EmployeeID is created. Find Button.Click Uses the FindRows( ) method of the DataView to retrieve the array of DataRowView objects...
[ Team LiB ] Recipe 1.18 Changing the Database for an Open Connection Problem You want to change the database that a connection uses without recreating the connection. Solution Use the ChangeDatabase( ) method to change the database for a connection.
[ Team LiB ] Recipe 1.17 Using Transactions with Pooled Connections Problem You want to use connection pooling with transactions in your .NET application to maximize performance. Solution The discussion explains how to use connection pooling with transactions.