Question

我有这个我要翻译成实体框架的SQL查询

我需要在实体的一次运行中插入多行，就像这个查询所做的那样

INSERT INTO dbo.tbllistDepartment
(
    department_sys_id,
    department,
    status,
    client_sys_id,
    lang_sys_id
)
SELECT @siDepartmentSysId,@siDepartment, @iiStatus, 
       @siClientSysId,  lang_sys_id
  FROM tblLanguageSettings 
  WHERE lang_sys_id <> 'Admin001'

我试过这个，但只插了一行

public static void Insert(string langSysId, string clientSysId,string name, int status)
    {
        Crs2Model context = new Crs2Model();
        string SysId = MyLibrary.StringCreator.GetSysId();

        tblListDepartment deptObj = new tblListDepartment()
        {
            department_sys_id = SysId,
            client_sys_id = clientSysId,
            lang_sys_id=langSysId,
            department=name,
            status=status
        };

        context.tblListDepartments.Add(deptObj);
        context.SaveChanges();
    }

Answer 1

首先，您需要来自tbllistDepartment表的过滤数据。然后循环遍历这些数据。这是一个例子。你可以参考，我的朋友：

using (DBContext ctx = new DBContext())
{     

  var department = ctx.tbllistDepartment.Where(c => c.lang_sys_id != "Admin001");   

    foreach(var item in department)
{
      var obj = new tbllistDepartment()
      {
         department_sys_id = item.department_sys_id,
         department = item.department,
         status = item.status,
         client_sys_id = item.client_sys_id,
         lang_sys_id = item.lang_sys_id
      }
      ctx.tbllistDepartment.Add(obj);
}   

  // Insert into the database.
  ctx.SaveChanges();                        
}

Answer 2

添加您的课程：

using Microsoft.EntityFrameworkCore;

您可以使用命令

_context.Database.ExecuteSQLCommand (sqlcommand,[parameters]);

这些是以下命令：

string sqlCommand = "INSERT INTO dbo.tbllistDepartment (department_sys_id,department,status,client_sys_id,lang_sys_id) SELECT {0},{1},{2}, {3},{4} FROM tblLanguageSettings WHERE lang_sys_id <> {5}";    
_context.Database.ExecuteSqlCommand(sqlCommand, @siDepartmentSysId,@siDepartment,@iiStatus, @siClientSysId, lang_sys_id,'Admin001');

将插入转换为选择到实体框架

2 个答案: