Add getSQL idea

docs/content/extras/dynamiccontent.md

@@ -13,7 +13,7 @@ weight: 91
 
 Dynamic content with a static site generator? Yes it is possible!
 
-In addition to the [built-in variables](/templates/variables/) available from Hugo, you can specify your own custom data that can be accessed via templates or shortcodes.
+Besides the [data files](/extras/datafiles/) available from Hugo, you can specify your own custom data that can be accessed via templates or shortcodes.
 
 Hugo supports loading data from [YAML](http://yaml.org/), [JSON](http://www.json.org/), and [TOML](https://github.com/toml-lang/toml) files located in the `data` directory.
 
@@ -26,3 +26,37 @@ As explained in [Source Organization](/overview/source-directory/), the `data` f
 **The keys in this map will be a dot chained set of _path_, _filename_ and _key_ in file (if applicable).**
 
 This is best explained with an example:
+
+## The Future: getSQL
+
+The outlook to support more sources is of course implementing SQL support.
+
+Maybe adding two new CLI switches:
+
+	--sqlDriver=mysql|postres|mssql
+	--sqlSource=string|filename
+
+#### `--sqlDriver`
+
+specifies the driver to use which can be one from [https://github.com/golang/go/wiki/SQLDrivers](https://github.com/golang/go/wiki/SQLDrivers)
+
+#### `--sqlSource`
+
+You can either provide the connection string on the command file OR an existing file which contains the connection string.
+
+How the connection string looks like depends heavily on the used driver. For MySQL:
+
+	hugo --sqlDriver=mysql \
+	--sqlSource=username:password@protocol(address)/dbname?param=value
+
+or with a file name:
+
+	hugo --sqlDriver=mysql --sqlSource=path/to/myCredentials.txt
+
+The file myCredentials.txt contains the connection string: `username:password@protocol(address)/dbname?param=value` and nothing more!
+
+
+
+```
+$data := getSQL "SELECT id,artist,genre,title from musicTable"
+```