diff --git a/src/main/java/me/kavin/piped/utils/DatabaseHelper.java b/src/main/java/me/kavin/piped/utils/DatabaseHelper.java
index 19fcc0b..4bef70b 100644
--- a/src/main/java/me/kavin/piped/utils/DatabaseHelper.java
+++ b/src/main/java/me/kavin/piped/utils/DatabaseHelper.java
@@ -10,7 +10,6 @@ import javax.persistence.criteria.CriteriaBuilder;
 import javax.persistence.criteria.CriteriaQuery;
 import javax.persistence.criteria.JoinType;
 import javax.persistence.criteria.Root;
-import java.util.List;
 
 public class DatabaseHelper {
 
@@ -18,7 +17,7 @@ public class DatabaseHelper {
         CriteriaBuilder cb = s.getCriteriaBuilder();
         CriteriaQuery<User> cr = cb.createQuery(User.class);
         Root<User> root = cr.from(User.class);
-        cr.select(root).where(root.get("sessionId").in(session));
+        cr.select(root).where(cb.equal(root.get("sessionId"), session));
 
         return s.createQuery(cr).uniqueResult();
     }
@@ -28,7 +27,7 @@ public class DatabaseHelper {
         CriteriaQuery<User> cr = cb.createQuery(User.class);
         Root<User> root = cr.from(User.class);
         root.fetch("subscribed_ids", JoinType.INNER);
-        cr.select(root).where(root.get("sessionId").in(session));
+        cr.select(root).where(cb.equal(root.get("sessionId"), session));
 
         return s.createQuery(cr).uniqueResult();
     }
@@ -37,35 +36,16 @@ public class DatabaseHelper {
         CriteriaBuilder cb = s.getCriteriaBuilder();
         CriteriaQuery<Channel> cr = cb.createQuery(Channel.class);
         Root<Channel> root = cr.from(Channel.class);
-        cr.select(root).where(root.get("uploader_id").in(id));
+        cr.select(root).where(cb.equal(root.get("uploader_id"), id));
 
         return s.createQuery(cr).uniqueResult();
     }
 
-    public static final List<Channel> getChannelFromIds(Session s, List<String> id) {
-        CriteriaBuilder cb = s.getCriteriaBuilder();
-        CriteriaQuery<Channel> cr = cb.createQuery(Channel.class);
-        Root<Channel> root = cr.from(Channel.class);
-        cr.select(root).where(root.get("uploader_id").in(id));
-
-        return s.createQuery(cr).getResultList();
-    }
-
-    public static final List<Video> getVideosFromChannelIds(Session s, List<String> id) {
-        CriteriaBuilder cb = s.getCriteriaBuilder();
-        CriteriaQuery<Video> cr = cb.createQuery(Video.class);
-        Root<Video> root = cr.from(Video.class);
-        root.fetch("channel", JoinType.INNER);
-        cr.select(root).where(root.get("channel").get("uploader_id").in(id));
-
-        return s.createQuery(cr).getResultList();
-    }
-
     public static final Video getVideoFromId(Session s, String id) {
         CriteriaBuilder cb = s.getCriteriaBuilder();
         CriteriaQuery<Video> cr = cb.createQuery(Video.class);
         Root<Video> root = cr.from(Video.class);
-        cr.select(root).where(root.get("id").in(id));
+        cr.select(root).where(cb.equal(root.get("id"), id));
 
         return s.createQuery(cr).uniqueResult();
     }
@@ -74,7 +54,7 @@ public class DatabaseHelper {
         CriteriaBuilder cb = s.getCriteriaBuilder();
         CriteriaQuery<PubSub> cr = cb.createQuery(PubSub.class);
         Root<PubSub> root = cr.from(PubSub.class);
-        cr.select(root).where(root.get("id").in(id));
+        cr.select(root).where(cb.equal(root.get("id"), id));
 
         return s.createQuery(cr).uniqueResult();
     }