In SQL Server. With:: The difference between _mssql

Source: Internet
Author: User
An instance of SQL Server is given below, and the following SQL runs under 2008 environments:

DECLARE @g Geography;
SET @g = Geography::P arse (' LINESTRING (-122.360 47.656,-122.343 47.656) ');

SELECT @g;
SELECT @g.tostring ();

The result set is:

0xe610000001148716d9cef7d34740d7a3703d0a975ec08716d9cef7d34740cba145b6f3955ec0

LINESTRING (-122.36 47.656,-122.343 47.656)

Geography is a new type of support geographic information that is added to SQL Server 2008 and is not described here because it is beyond the scope of this article.

We only look inside the geography::P arse Method and the @g.tostring () method, you can see that the parse method is called through geography type Support, equivalent to the Class.staticmethod form in C #, ToString ( ) is called through the instance of G.

If you want to reprint, please specify this article original from CSDN tjvictor column

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.