从 MSSQL 转换为 MySQL

Question

谁能把这个 MSSQL 表达式翻译成 MySQL 吗？

CREATE PROCEDURE `spGetEmployees`
@StartIndex int,
@MaximumRows int
as
BEGIN
    select EmployeeID,
           Name,
           Gender, 
           City,
           StartDate
      from (select row_number()
              over (order by EmployeeID)
                as RowNumber,
                   EmployeeID,
                   Name,
                   Gender,
                   City,
                   StartDate
              from tblEmployee) Employees
     where RowNumber >= @StartIndex
       and RowNumber < (@StartIndex + @MaximumRows);
END

tblEmployee 是真实表，Employees 是派生表。

Answer 1

mysql过程的一般语法是

CREATE PROCEDURE storedProcedureName( IN someString VarChar(150) )
BEGIN
  -- Sql queries goes here
END

在您的情况下，您的程序将类似于：

CREATE PROCEDURE spGetEmployees( IN StartIndex int, IN MaximumRows int)
BEGIN

select EmployeeID, Name, Gender, City, StartDate from
(select row_number() over (order by EmployeeID) as RowNumber, EmployeeID, Name,
    Gender, City, StartDate
from tblEmployee)  Employees
-- this part you may want to use limit or other mysql functions
--where RowNumber >= StartIndex and RowNumber < (StartIndex + MaximumRows);

END

如果你也需要，MySQL中临时表的基本语法是这样的：

CREATE TEMPORARY TABLE tableName(
emp_id VARCHAR(10),
 emp_Name VARCHAR(50),
emp_Code VARCHAR(30),
emp_Department VARCHAR(30)
);