Sybase ASE 12.5是否支持通用表表达式？ [英] Does Sybase ASE 12.5 support Common Table Expressions?

问题描述

我注意到Sybase SQL Anywhere支持它们，但是在ASE上也找不到它们。

I noted that Sybase SQL Anywhere supports them, but can't find any documentation on ASE also doing so.

如果不支持，那我该怎么办？设计递归查询的最佳选择？在SQL Server 2008中，我会使用CTE来完成此操作，但是如果不可用的话？

If it doesn't, what would be my best option for designing a recursive query? In SQL Server 2008 I'd do it with a CTE, but if that's not available? A function perhaps?

推荐答案

Sybase ASE 12.5（以及15.0）不支持CTE。

Sybase ASE 12.5 (and also 15.0) doesn't support CTE.

您可以使用内部查询来解决问题。

You can use a inner query to solve your problem.

像这样的简单CTE ：

A simple CTE like this:

WITH Sales_CTE (Folders_Id)
AS
-- Define the CTE query.
(
    SELECT Folders_Id FROM Folders
)
SELECT Folders_Id FROM Sales_CTE

与此相同：

SELECT aux.Folders_Id
FROM (SELECT Folders_Id FROM Folders) aux

有关更多信息，请检查此！

For a litle more info, check this!

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