.net core connect to mysql server - mysql

Question

I have a issue here for the connect mysql.
I have a vps that contain mysql server have a database name is 'tuyendungbg'. it's had table and data in there. But when i'm connect and query to select data, that have error for 'Table 'tuyendungbg.Careers' doesn't exist'.
here is my controller :
[HttpGet("/nganh-nghe/{slug?}")]
public IActionResult Index(string slug, [FromQuery(Name =
"p")] int currentPage, int
pageSize)
{
if (!string.IsNullOrEmpty(slug))
{
var career = _context.Careers.FirstOrDefault(x =>
x.Slug.Equals(slug));
if (career != null)
{
ViewBag.CareerName = career.CareerName;
//var qr = _context.Careers.ToList();
var qr = (from p in
_context.CompanyCareers.Where(x => x.CareerId ==
career.ID)
from b in _context.Companies.Where(x =>
x.Id == p.CompanyId)
from i in
_context.IndustrialAreas.Where(x => x.ID ==
b.IndustrialAreaId).DefaultIfEmpty()
select new CompanyModelView()
{
Id = b.Id,
CompanyName = b.CompanyName,
BasicSalary = b.BasicSalary,
Allowance = b.Allowance,
DateCreate = b.DateCreate,
JobTitle = b.JobTitle,
Src = b.Src,
_IndustrialArea = i,
Address = b.Address,
Slug = b.Slug,
WorkTypes = (from tc in
_context.CompanyWorkTypes.Where(x =>
x.CompanyId == b.Id)
from type in
_context.WorkTypes.Where(x => x.Id
==
tc.TypeId)
select type)
}
).OrderByDescending(x => x.DateCreate).ToList();
// var worktype = (from w in
_context.CompanyWorkTypes.Where(x =>
x.CompanyId
== qr.))
var totalCate = qr.Count();
if (pageSize <= 0) pageSize = 10;
int countPages =
(int)Math.Ceiling((double)totalCate / pageSize);
if (currentPage > countPages)
currentPage = countPages;
if (currentPage < 1)
currentPage = 1;
var pagingModel = new PagingModel()
{
countpages = countPages,
currentpage = currentPage,
generateUrl = (pageNumber) =>
Url.Action(nameof(Index), new
{
p = pageNumber,
pageSize = pageSize
})
};
ViewBag.pagingModel = pagingModel;
ViewBag.totalPost = totalCate;
ViewBag.cateIndex = (currentPage - 1) * pageSize;
var companies = qr.Skip((currentPage - 1) *
pageSize)
.Take(pageSize).ToList();
ViewBag.JobCount = companies.Count();
//Set slider menu
var leftSlider = new LeftSliderModel()
{
Areas = new SelectList(_context.Areas,
nameof(Area.ID),
nameof(Area.NameArea)),
Careers = new SelectList(_context.Careers,
nameof(Career.ID),
nameof(Career.CareerName)),
WorkTypes = _context.WorkTypes.ToList(),
Experiences = _context.Experiences.ToList()
};
ViewBag.LeftSlider = leftSlider;
return View(companies);
}
}
return NotFound();
}