declare @ids table(id int)
insert into @ids
SELECT [id]
FROM .[umbracoNode]
where [YOU QUERY HERE]
DELETE FROM umbracoRelation
WHERE [childId] in (select id from @ids)
DELETE FROM cmsPreviewXml
WHERE [nodeId] in (select id from @ids)
DELETE FROM cmsContentVersion
WHERE [ContentId] in (select id from @ids)
DELETE FROM [cmsContent]
WHERE [nodeId] in (select id from @ids)
DELETE FROM [cmsPropertyData]
WHERE [contentNodeId] in (select id from @ids)
DELETE FROM [cmsDocument]
WHERE [nodeId] in (select id from @ids)
DELETE FROM cmsContentVersion WHERE [contentId] in (select id from @ids)
DELETE FROM cmsContentXml WHERE [nodeId] in (select id from @ids)
DELETE FROM umbracoRelation WHERE [parentId] in (select id from @ids)
DELETE FROM [umbracoNode]
WHERE [id] in (select id from @ids)