Well, if anyone is interested here is a successful sql-export command, now i just got to figure out how to make a proper import

string query = @"SELECT 
            dbo.umbracoNode.text AS [umbracoNode-text, dbo.umbracoNode.uniqueID AS [umbracoNode-uniqueID], dbo.umbracoNode.createDate AS [umbracoNode-createDate], 
            dbo.umbracoNode.sortOrder AS [umbracoNode-sortOrder], dbo.umbracoNode.path AS [umbracoNode-path], dbo.umbracoNode.level AS [umbracoNode-level], 
            dbo.umbracoNode.parentID AS [umbracoNode-parentID], dbo.umbracoNode.id AS [umbracoNode-id], 
            dbo.umbracoNode.trashed AS [umbracoNode-trashed]], dbo.cmsContentType.description AS [cmsContentType-description], 
            dbo.cmsContentType.alias AS [cmsContentType-alias], dbo.cmsDocument.versionId AS [cmsDocument-versionId], 
            dbo.cmsDocument.published AS [cmsDocument-published], dbo.cmsPropertyData.dataNtext AS [cmsPropertyData-dataNtext], 
            dbo.cmsPropertyData.dataNvarchar AS [cmsPropertyData-dataNvarchar], dbo.cmsPropertyData.dataDate AS [cmsPropertyData-dataDate], 
            dbo.cmsPropertyData.dataInt AS [cmsPropertyData-dataInt], dbo.cmsPropertyType.Alias AS [cmsPropertyType-Alias], 
            dbo.cmsPropertyType.Name AS [cmsPropertyType-Name], dbo.cmsTags.tag AS [cmsTags-tag]
        FROM
            dbo.cmsContent INNER JOIN
            dbo.umbracoNode ON dbo.cmsContent.nodeId = dbo.umbracoNode.id INNER JOIN
            dbo.cmsContentType ON dbo.cmsContent.contentType = dbo.cmsContentType.nodeId INNER JOIN
            dbo.cmsTagRelationship ON dbo.umbracoNode.id = dbo.cmsTagRelationship.nodeId INNER JOIN
            dbo.cmsTags ON dbo.cmsTagRelationship.tagId = dbo.cmsTags.id FULL OUTER JOIN
            dbo.cmsPropertyData INNER JOIN
            dbo.cmsDocument ON dbo.cmsPropertyData.versionId = dbo.cmsDocument.versionId INNER JOIN
            dbo.cmsPropertyType ON dbo.cmsPropertyData.propertytypeid = dbo.cmsPropertyType.id ON dbo.umbracoNode.id = dbo.cmsDocument.nodeId
        WHERE 
            (dbo.cmsDocument.published = 1)
            AND (dbo.cmsPropertyType.Alias = 'bodyText' OR dbo.cmsPropertyType.Alias = 'shorttext')";