Visual Studio 2015中缺少SSDT(SQL Server数据工具)

我已经安装了Visual Studio 2015，但是您无法看到ssdt功能

I've installed Visual Studio 2015, but the ssdt features are missing as you can see below

我在设置时检查了ssdt选项，唯一要做的就是将默认安装目录从c:/更改为d:/(不知道它是否会更改).当我使用典型安装时，ssdt可以很好地安装，但是它将VS安装在c:/上，而我需要将其安装在"D:/" ...

I checked the ssdt option at the setup, and the only thing i did was change the default installation directory from c:/ to d:/ (don't know if it changes anything). When i use the Typical installation, ssdt installs fine, but it installs VS at c:/, and i need it installed at "D:/" ...

这是我的VS安装程序的屏幕截图

Here is a screenshot of my VS Setup

我怎样才能获得SSDT功能?

How can i have SSDT features back?

为解决我的问题，我在

To solve my problem i did the fist part of the third step at this link, which was:

Download the appropriate version of SSDTSetup.exe for your chosen language from the table below (use the "save" option in your browser, rather than "run"):
Portuguese (Brazil) http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x416
Chinese (PRC)   http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x804
German  http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x407
English (United States) http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x409
Spanish http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x40a
French  http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x40c
Italian http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x410
Japanese    http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x411
Korean  http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x412
Russian http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x419
Chinese (Taiwan)    http://go.microsoft.com/fwlink/?LinkID=619232&clcid=0x404