diff --git a/renren-admin/src/main/java/io/renren/common/controller/CensusController.java b/renren-admin/src/main/java/io/renren/common/controller/CensusController.java
index e80b30c9..703009a8 100644
--- a/renren-admin/src/main/java/io/renren/common/controller/CensusController.java
+++ b/renren-admin/src/main/java/io/renren/common/controller/CensusController.java
@@ -637,4 +637,21 @@ public class CensusController {
         return list;
     }
 
+    // TODO 同比环比
+    @GetMapping("/similitude")
+    @ApiOperation("资源数量环比")
+    @LogOperation("资源数量环比")
+    @ApiImplicitParams({})
+    public Result similitude() {
+        return new Result();
+    }
+
+    @GetMapping("/similitude_dept")
+    @ApiOperation("部门资源数量环比")
+    @LogOperation("部门资源数量环比")
+    @ApiImplicitParams({})
+    public Result similitudeDept() {
+        return new Result();
+    }
+
 }
diff --git a/renren-admin/src/main/resources/db/V8.7__add_sys_date_snapshot.sql b/renren-admin/src/main/resources/db/V8.7__add_sys_date_snapshot.sql
new file mode 100644
index 00000000..b8dfecf8
--- /dev/null
+++ b/renren-admin/src/main/resources/db/V8.7__add_sys_date_snapshot.sql
@@ -0,0 +1,18 @@
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for sys_date_snapshot
+-- ----------------------------
+DROP TABLE IF EXISTS `sys_date_snapshot`;
+CREATE TABLE `sys_date_snapshot`  (
+  `id` bigint NOT NULL COMMENT '主键',
+  `type` int NULL DEFAULT NULL COMMENT '数据快照类型（1：每周快照 2：每月快照）',
+  `creator` bigint NULL DEFAULT NULL COMMENT '创建人',
+  `create_date` datetime NOT NULL COMMENT '创建时间',
+  `snapshot` json NOT NULL COMMENT '数据快照内容',
+  PRIMARY KEY (`id`) USING BTREE,
+  INDEX `type`(`type` ASC) USING BTREE
+) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '运行数据快照（资源数量、申请数量）' ROW_FORMAT = Dynamic;
+
+SET FOREIGN_KEY_CHECKS = 1;