diff --git a/PostgreSQL/prism/prism.sql b/PostgreSQL/prism/prism.sql
index d47bea1..50c46bc 100644
--- a/PostgreSQL/prism/prism.sql
+++ b/PostgreSQL/prism/prism.sql
@@ -9,3 +9,49 @@ from activities as a
 where timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
 group by b.action_id, b.action
 order by count(b.action_id) desc;
+
+-- 1天内的block-place行为按玩家分组
+select cause_player_id, players.player, count(*)
+from activities
+         left join players on activities.cause_player_id = players.player_id
+where action_id = (select action_id from actions where action = 'block-place')
+  and timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
+group by cause_player_id, player
+order by count(cause_player_id) desc;
+
+-- 1天内，非明确实体触发的block-place行为
+select *
+from activities
+where action_id = (select action_id from actions where action = 'block-place')
+  and timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
+  and cause_id is not null
+limit 500;
+
+-- 1天内，非玩家触发的block-place行为，按entity_type
+select cause_entity_type_id, entity_type, count(*)
+from activities
+         left join entity_types on activities.cause_entity_type_id = entity_types.entity_type_id
+where action_id = (select action_id from actions where action = 'block-place')
+  and timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
+  and cause_player_id is null
+group by cause_entity_type_id, entity_type
+order by count(cause_entity_type_id) desc;
+
+-- 1天内，非明确实体触发的block-place行为，按cause_id分组
+select activities.cause_id, causes.cause, count(activities.cause_id)
+from activities
+         left join causes on activities.cause_id = causes.cause_id
+where action_id = (select action_id from actions where action = 'block-place')
+  and timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
+  and activities.cause_id is not null
+group by activities.cause_id, causes.cause
+order by count(activities.cause_id) desc;
+
+-- 1天内，nature引发的block-place事件，按坐标分组并排序
+select world_id, x, y, z, count((world_id, x, y, z))
+from activities
+where action_id = (select action_id from actions where action = 'block-place')
+  and cause_id = (select cause_id from causes where cause = 'nature')
+  and timestamp > EXTRACT(EPOCH FROM current_timestamp(0))::bigint - 86400
+group by world_id, x, y, z
+order by count((world_id, x, y, z)) desc;