我正在尝试导出和导入数据库架构以及其中的数据。我正在使用SMO(服务器管理对象)来执行此操作,但是虽然模式的导出工作正常,但是在脚本选项中将ScriptData
设置为true
会产生异常。
Server server = new Server(new ServerConnection(sqlCon));
Database database = server.Databases["SpectroGrass"];
ScriptingOptions options = new ScriptingOptions();
options.ScriptSchema = true;
options.ScriptData = false;
options.ScriptDrops = false;
string scriptData = String.Join("\r\n", database.Tables[tableName].EnumScript(options).ToList());
将产生一个模式并且正在工作。
SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
CREATE TABLE [SpectroGrassAdmin].[Treatment]
(
[TRM_ID] [int] NOT NULL,
[TRM_Name] [varchar](150) COLLATE Latin1_General_CI_AS NULL,
[TRM_Crop] [varchar](50) COLLATE Latin1_General_CI_AS NOT NULL
) ON [PRIMARY]
但是使用ScriptData
选项...
options.ScriptSchema = false;
options.ScriptData = true;
options.ScriptDrops = false;
string scriptData = String.Join("\r\n", database.Tables[tableName].EnumScript(options).ToList());
将产生异常。
用户'SpectroGrassAdmin'的登录失败。
我不确定为什么会收到此特定错误。我只能认为问题出在其他地方,因为如果只希望导出架构,则登录服务器并连接到数据库可以正常工作。
我是否缺少其他一些选项来能够为表数据创建脚本?
尝试尽可能简化它。smo的特殊之处在于,默认情况下,它指向/连接到默认的SQL实例。
您是否在运行应用程序的计算机上拥有一个默认实例,并且尝试将其迁移到另一个实例? (在您的计算机上是辅助服务器,在另一台计算机上是远程实例)。
以下是使用ServerConnection进行的from an example of smo,这使得连接信息得以重用。
// https://docs.microsoft.com/en-us/sql/relational-databases/server-management-objects-smo/create-program/connecting-to-an-instance-of-sql-server?view=sql-server-ver15#connecting-to-an-instance-of-sql-server-by-using-sql-server-authentication-in-visual-c
//// compile with:
// /r:Microsoft.SqlServer.Smo.dll
// /r:Microsoft.SqlServer.ConnectionInfo.dll
// /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll
using System;
using System.Linq;
using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Management.Common;
namespace SMOConsoleApp
{
class Program
{
static void Main()
{
// For remote connection, remote server name / ServerInstance needs to be specified
ServerConnection srvConn2 = new ServerConnection("machinename"/* <--default sql instance on machinename*/); // or (@"machinename\sqlinstance") for named instances
srvConn2.LoginSecure = false;
srvConn2.Login = "sql_login_goes_here";
srvConn2.Password = "password_goes_here";
Server srv3 = new Server(srvConn2);
Console.WriteLine("servername:{0} ---- version:{1}", srv3.Name, srv3.Information.Version); // connection is established
Console.WriteLine(srv3.ConnectionContext); //check connection context
ScriptingOptions scriptoptions = new ScriptingOptions();
scriptoptions.ScriptSchema = true;
scriptoptions.ScriptData = true;
scriptoptions.ScriptDrops = false;
Database mydb = srv3.Databases["master"];
/*
--execute this in ssms, in the master db
select *
into dbo.testsysobjects
from sys.objects
*/
Table mytable = mydb.Tables["testsysobjects", "dbo"];
Console.WriteLine("database: {0} ---- table: {1} ---- rowcount: {2}", mytable.Parent.Name, mytable.Name, mytable.RowCount); //check table
string scriptData = String.Join("\r\n", mytable.EnumScript(scriptoptions).ToList());
Console.Write(scriptData);
srvConn2.Disconnect();
}
}
}