在做参数化往数据库插入数据时出现的问题居然是变量名SQL的方式:@username我用的是Oracle数据库它用的方式是::username改为Oracle的方式就行了public string InsertUser(Users user){//string sql = "insert into Tuser (user_id,username,password,gender,email,mphone)" +// " values (FN_SYS_GETGUID(),@username,@password,@gender,@email,@mphone)";OracleConnection oracleConnection = DBHelper.GetOracleConnection;string rowId = string.Empty;try{ oracleConnection.Open(); //OracleCommand cmd = new OracleCommand(sql, oracleConnection); OracleCommand cmd = oracleConnection.CreateCommand(); cmd.CommandText = "insert into Tuser (user_id,username,password,gender,email,mphone)" + "values (FN_SYS_GETGUID(),:username,:password,:gender,:email,:mphone)"; cmd.Parameters.AddWithValue("username", user.UserName); cmd.Parameters.AddWithValue("password", user.PassWord); cmd.Parameters.AddWithValue("gender", user.Gender); cmd.Parameters.AddWithValue("email", user.Email); cmd.Parameters.AddWithValue("mphone", user.Mphone); OracleString oracleRowId; cmd.ExecuteOracleNonQuery(out oracleRowId); rowId = oracleRowId.Value;}catch (OracleException){ }finally{ oracleConnection.Close();}return rowId;}Oracle中的SQLLDR工具使用基于Oracle,采用JDBC、Hibernate不同方式实现自定义序列主键生成相关资讯 Oracle教程
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