这段代码使用SqlConnection类连接到数据库,并使用SqlCommand类执行查询语句。然后,使用SqlDataReader类读取查询结果,并通过GetString方法获取指定列的内容。最后,将内容输出到控制台。 这种方法适用于从MSSQL数据库中输出单个列的内容。如果你需要输出多个列或者需要进行更复杂的查询,可以根据需要修改查询语句和读取
publicvoidGetSqlConnectionTable() { #regionnamespace //using System.Data.SqlClient; #endregion #regionMSSQL SqlConnection //SqlConnection //C#连接MSSQL的方式 //Windows 身份验证 //"Data Source=PEK7-6TKX23X\SQLEXPRESS;Initial Catalog=Test;Trusted_Connection=Yes;"; //SQL Server 身份验证 //"s...
public static string connectionString = ConfigurationManager.AppSettings["MSSQLConnectionString"]; // public static string connectionString = LemonJu.Common.DEncrypt.DESEncrypt.Decrypt(LemonJu.Common.ConfigHelper.GetConfigString("ConnectionString")); public DbHelperSQL() { } #region 公用方法 /// //...
string connectionString = "Server=server_name;Database=database_name;User Id=username;Password=password;"; using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); // 执行SQL查询或更新操作 // ... } } } } 3. 使用ODBC连接 ODBC (Open Database Connectivity)...
// 处理查询结果while(rs.next()){intid=rs.getInt("id");Stringname=rs.getString("name");// 操作或展示数据System.out.println("ID: "+id+", Name: "+name);} 1. 2. 3. 4. 5. 6. 7. 8. 总结 通过以上步骤,你已经学会了如何在 Java 中连接 MSSQL 数据库。记得在使用完连接后关闭连接...
(UserID, UserName) VALUES (?, ?)";PreparedStatementpstmt=conn.prepareStatement(sql);pstmt.setInt(1,1);pstmt.setString(2,"admin");//试图插入adminpstmt.executeUpdate();//执行插入}catch(SQLExceptione){// 捕获SQL异常并显示弹窗JOptionPane.showMessageDialog(null,e.getMessage(),"错误",JOptionPane....
CREATE PROCEDURE GetEmployeeByID@EmployeeID INTASBEGINSELECT *FROM EmployeesWHERE EmployeeID = @EmployeeID;END; C#中的调用代码: using (SqlConnection connection = new SqlConnection(connectionString)){connection.Open();using (SqlCommand command = new SqlCommand("GetEmployeeByID", connection)){command.Com...
throws me this error, so it seems to me, that it actually does not recognize the usage of host\instnce as valid connection string Backtrace for: #<SB-THREAD:THREAD "main thread" RUNNING {1008B361F3}> 0: ((LAMBDA NIL :IN SB-DEBUG::FUNCALL-WITH-DEBUG-IO-SYNTAX)) 1: (SB-IMPL::CA...
使用的数据库都是MySQL,因此,需要先安装扩展,使PHP支持MSSQL,微软官方有相应的扩展下载。...大致的步骤如下:1、下载用于连接MSSQL的PHP 扩展:https://docs.microsoft.com/en-us/sql/connect/php/system-requirements-for-the-php-sql-driver...3、连接MSSQL如果使用的是Laravel,在.env中将DB_CONNECTION设为sql...
public static SqlDataReader SqlGet(SqlConnection conn, string table, string field, string str, SqlParameter[] para) { try { string sql = string...