MS-Access查询语法

Question

我有mysql的背景。现在我正在使用C＃进行MS-Access。我试过跟踪sql查询，但它抛出异常

查询1：

String strSql = "Select * from Employees orderby EmployeeID desc limit 1;";
OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, conn);
adapter.Fill(dt);

String strSql = "Select * from Employees orderby EmployeeID asc limit 1;";
OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, conn);
adapter.Fill(dt);

常见例外1：

Additional information: Syntax error in FROM clause.

查询2：

String strSql = "select * from Employees where EmployeeID = (select min(EmployeeID) from Employees where EmployeeID < '" + Int64.Parse(this.txtBoxID.Text) + "');";
OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, conn);
adapter.Fill(dt);

String strSql = "select * from Employees where EmployeeID = (select min(EmployeeID) from Employees where EmployeeID > '" + Int64.Parse(this.txtBoxID.Text) + "');";
OleDbDataAdapter adapter = new OleDbDataAdapter(strSql, conn);
adapter.Fill(dt);

常见例外2：

Additional information: Data type mismatch in criteria expression.

我的数据库位于

之下

Answer 1

为什么不使用查询设计器在访问中创建查询，更改为sql视图，然后将sql复制回代码？

另外，我认为你必须使用访问权限 -

SELECT TOP 1 * from Employees;

而不是

Select * from Employees limit 1;

Answer 2

查询1：

Select * from Employees order by EmployeeID ...