If anyone has better suggestion for this query: Tell me …

What I'm trying to do is something like this:
```sql
SELECT 'appid', 'configvalue' FROM 'oc_appconfig' WHERE 'configkey' = "dependson";
```
but only for `appid`s where
```sql
SELECT 'appid', 'configvalue' FROM 'oc_appconfig' WHERE 'configkey' = "enabled" AND 'configvalue' = "yes";
```