This post is mainly for my own reference purpose. The internal field name for approval status of a list/library item is _ModerationStatus, which has corresponding values and it is type of ModStat:
Status
|
Internal Value
|
Approved
|
0
|
Rejected
|
1
|
Pending
|
2
|
Draft
|
3
|
Sample usage for these values in CAML query : Retrieve all Approved documents from a particular document library
CAML query would look something like below:
<Where><Eq><FieldRef Name=’_ModerationStatus’ /><Value Type=’ModStat’>0</Value></Eq></Where>
Referance:
http://sharepointwriting.blogspot.com.tr/2011/10/internal-value-for-approval-status.html
