c# - ORA-00936 : missing expression using Entity framework update statement

Question

我不熟悉将 ORACLE 与 Entity Framework 5 一起使用。尝试一个简单的更新语句，但它不起作用，我收到错误“ORA-00936:缺少表达式”

Entities context = new Entities();

var Description="UpdateTesting";
var Id = "1";

string UpdateSqlString = @"Update SOURCE Set DESCRIPTION={0} where SOURCEID={1}";

int RowsUpdated = context.Database.ExecuteSqlCommand(UpdateSqlString, Description, Id);

context.SaveChanges();

我也试过下面的方法，还是报同样的错误

 Entities context = new Entities();

 var Description = "UpdateTesting";
 var Id = "1";

 var sql = @"Update SOURCE Set DESCRIPTION = @DESCRIPTION WHERE SOURCEID = @Id";

 int RowsUpdated = context.Database.ExecuteSqlCommand(sql, new OracleParameter("DESCRIPTION", Description),
                                                                  new OracleParameter("Id", Id));
 context.SaveChanges();

我现在已经尝试使用以下语法，但在 ExecuteSqlCommand 之后什么也没有发生，应用程序可能进入了某个无休止的循环

var Description="UpdateTesting";
var SOURCEId = "1";

var sql = "Update SOURCE SET DESCRIPTION = :Description WHERE SOURCEID = :SOURCEId";

 int RowsUpdated=context.Database.ExecuteSqlCommand(
            sql,
            new OracleParameter(":Description", Description),
            new OracleParameter(":SOURCEId", SOURCEId));

如果这有助于解决此问题，我可以提供 SQL 创建表脚本。

有什么想法吗？谢谢

Answer 1

你试过吗？没有冒号

    var Description="UpdateTesting";
var SOURCEId = "1";

var sql = "Update SOURCE SET DESCRIPTION = :Description WHERE SOURCEID = :SOURCEId";

 int RowsUpdated=context.Database.ExecuteSqlCommand(
            sql,
            new OracleParameter("Description", Description),
            new OracleParameter("SOURCEId"   , SOURCEId));