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SQL Database Connection in C#
codeproject.com/Articles/823854/How-to-Connect-SQL-Database-to-your-Csharp-ProgramYapay zekadan makale özeti
- Setup and Basics
- Article teaches .NET Framework database connection using SQL client
- System.Data.SqlClient namespace contains classes for database operations
- Connection string specifies server, database and authentication details
- Connection Management
- Connection pools reduce database connection opening and closing
- Using statement ensures proper resource management
- Connection pooling works only with same configuration connections
- Command Execution
- SqlCommand class executes SQL commands on database
- Parameters can be used to secure database against SQL injections
- SqlDataReader class retrieves data from database
- Error Handling
- SqlError and SqlException classes handle SQL Server errors
- Try-catch blocks can catch and handle exceptions
- Error details can be retrieved and processed
- Implementation Details
- Example demonstrates SELECT queries with WHERE clause
- INSERT INTO command adds data to database tables
- Connection string must match server, database and tables
- SQL Server installation not required, can connect to separate environments