Add notes for 2016-02-06

Signed-off-by: Alan Orth <alan.orth@gmail.com>

content/2016-02.md

@@ -16,3 +16,36 @@ image = "../images/bg.jpg"
 
 - Not only are there 49,000 countries, we have some blanks (25)...
 - Also, lots of things like "COTE D`LVOIRE" and "COTE D IVOIRE"
+
+## 2016-02-06
+
+- Found a way to get items with null/empty metadata values from SQL
+- First, find the `metadata_field_id` for the field you want from the `metadatafieldregistry` table:
+
+```
+dspacetest=# select * from metadatafieldregistry;
+```
+
+- In this case our country field is 78
+- Now find all resources with type 2 (item) that have null/empty values for that field:
+
+```
+dspacetest=# select resource_id from metadatavalue where resource_type_id=2 and metadata_field_id=78 and (text_value='' OR text_value IS NULL);
+```
+
+- Then you can find the handle that owns it from its `resource_id`:
+
+```
+dspacetest=# select handle from item, handle where handle.resource_id = item.item_id AND item.item_id = '22678';
+```
+
+- It's 25 items so editing in the web UI is annoying, let's try SQL!
+
+```
+dspacetest=# delete from metadatavalue where metadata_field_id=78 and text_value='';
+DELETE 25
+```
+
+- After that perhaps a regular `dspace index-discovery` (no -b) *should* suffice...
+- Hmm, I indexed, cleared the Cocoon cache, and restarted Tomcat but the 25 "|||" countries are still there
+- Maybe I need to do a full re-index...