gistfile2.xml

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="3.5"
         DefaultTargets="main"
         xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
	<Import Project="$(MSBuildExtensionsPath)\ExtensionPack\4.0\MSBuild.ExtensionPack.tasks"/>

	<Target Name="createdb">
		<ItemGroup>
		  <SqlFiles Include="$(MSBuildProjectDirectory)\db\**\*.sql" />
		</ItemGroup>

		<Message Text="SqlFiles: $(MSBuildProjectDirectory)\db\**\*.sql"></Message>

		<SqlCmd TaskAction="Execute" Server="."
				SeverityLevel="1" InputFiles="@(SqlFiles)"
				QueryTimeOut="10" />
	</Target>
</Project>

run_all_sql_scripts.bat

msbuild build.proj /t:createdb