diff --git a/store/db/mysql/migration/prod/0.19/00__add_resource_name.sql b/store/db/mysql/migration/prod/0.19/00__add_resource_name.sql
new file mode 100644
index 00000000..b956d0d8
--- /dev/null
+++ b/store/db/mysql/migration/prod/0.19/00__add_resource_name.sql
@@ -0,0 +1,11 @@
+ALTER TABLE `memo` ADD COLUMN `resource_name` VARCHAR(256) NOT NULL AFTER `id`;
+
+UPDATE `memo` SET `resource_name` = uuid();
+
+CREATE UNIQUE INDEX idx_memo_resource_name ON `memo` (`resource_name`);
+
+ALTER TABLE `resource` ADD COLUMN `resource_name` VARCHAR(256) NOT NULL AFTER `id`;
+
+UPDATE `resource` SET `resource_name` = uuid();
+
+CREATE UNIQUE INDEX idx_resource_resource_name ON `resource` (`resource_name`);
diff --git a/store/db/mysql/migration/prod/LATEST__SCHEMA.sql b/store/db/mysql/migration/prod/LATEST__SCHEMA.sql
index 2ff4b65e..7db3fe57 100644
--- a/store/db/mysql/migration/prod/LATEST__SCHEMA.sql
+++ b/store/db/mysql/migration/prod/LATEST__SCHEMA.sql
@@ -36,6 +36,7 @@ CREATE TABLE `user_setting` (
 -- memo
 CREATE TABLE `memo` (
   `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  `resource_name` VARCHAR(256) NOT NULL UNIQUE,
   `creator_id` INT NOT NULL,
   `created_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `updated_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
@@ -63,6 +64,7 @@ CREATE TABLE `memo_relation` (
 -- resource
 CREATE TABLE `resource` (
   `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  `resource_name` VARCHAR(256) NOT NULL UNIQUE,
   `creator_id` INT NOT NULL,
   `created_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `updated_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
diff --git a/store/db/postgres/migration/prod/0.19/00__add_resource_name.sql b/store/db/postgres/migration/prod/0.19/00__add_resource_name.sql
new file mode 100644
index 00000000..aa5b560f
--- /dev/null
+++ b/store/db/postgres/migration/prod/0.19/00__add_resource_name.sql
@@ -0,0 +1,15 @@
+ALTER TABLE memo ADD COLUMN resource_name TEXT;
+
+UPDATE memo SET resource_name = uuid_in(md5(random()::text || random()::text)::cstring);
+
+ALTER TABLE memo ALTER COLUMN resource_name SET NOT NULL;
+
+CREATE UNIQUE INDEX idx_memo_resource_name ON memo (resource_name);
+
+ALTER TABLE resource ADD COLUMN resource_name TEXT;
+
+UPDATE resource SET resource_name = uuid_in(md5(random()::text || random()::text)::cstring);
+
+ALTER TABLE resource ALTER COLUMN resource_name SET NOT NULL;
+
+CREATE UNIQUE INDEX idx_resource_resource_name ON resource (resource_name);
diff --git a/store/db/postgres/migration/prod/LATEST__SCHEMA.sql b/store/db/postgres/migration/prod/LATEST__SCHEMA.sql
index 8c414fd1..c0059ab3 100644
--- a/store/db/postgres/migration/prod/LATEST__SCHEMA.sql
+++ b/store/db/postgres/migration/prod/LATEST__SCHEMA.sql
@@ -36,6 +36,7 @@ CREATE TABLE user_setting (
 -- memo
 CREATE TABLE memo (
   id SERIAL PRIMARY KEY,
+  resource_name TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,
   created_ts BIGINT NOT NULL DEFAULT EXTRACT(EPOCH FROM NOW()),
   updated_ts BIGINT NOT NULL DEFAULT EXTRACT(EPOCH FROM NOW()),
@@ -63,6 +64,7 @@ CREATE TABLE memo_relation (
 -- resource
 CREATE TABLE resource (
   id SERIAL PRIMARY KEY,
+  resource_name TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,
   created_ts BIGINT NOT NULL DEFAULT EXTRACT(EPOCH FROM NOW()),
   updated_ts BIGINT NOT NULL DEFAULT EXTRACT(EPOCH FROM NOW()),
diff --git a/store/db/sqlite/migration/prod/0.19/00__add_resource_name.sql b/store/db/sqlite/migration/prod/0.19/00__add_resource_name.sql
new file mode 100644
index 00000000..8f774786
--- /dev/null
+++ b/store/db/sqlite/migration/prod/0.19/00__add_resource_name.sql
@@ -0,0 +1,11 @@
+ALTER TABLE memo ADD COLUMN resource_name TEXT NOT NULL;
+
+UPDATE memo SET resource_name = lower(hex(randomblob(8)));
+
+CREATE UNIQUE INDEX idx_memo_resource_name ON memo (resource_name);
+
+ALTER TABLE resource ADD COLUMN resource_name TEXT NOT NULL;
+
+UPDATE resource SET resource_name = lower(hex(randomblob(8)));
+
+CREATE UNIQUE INDEX idx_resource_resource_name ON resource (resource_name);
diff --git a/store/db/sqlite/migration/prod/LATEST__SCHEMA.sql b/store/db/sqlite/migration/prod/LATEST__SCHEMA.sql
index b5fb32f5..5ddce546 100644
--- a/store/db/sqlite/migration/prod/LATEST__SCHEMA.sql
+++ b/store/db/sqlite/migration/prod/LATEST__SCHEMA.sql
@@ -1,19 +1,3 @@
--- drop all tables first
-DROP TABLE IF EXISTS migration_history;
-DROP TABLE IF EXISTS system_setting;
-DROP TABLE IF EXISTS user;
-DROP TABLE IF EXISTS user_setting;
-DROP TABLE IF EXISTS memo;
-DROP TABLE IF EXISTS memo_organizer;
-DROP TABLE IF EXISTS memo_relation;
-DROP TABLE IF EXISTS resource;
-DROP TABLE IF EXISTS tag;
-DROP TABLE IF EXISTS activity;
-DROP TABLE IF EXISTS storage;
-DROP TABLE IF EXISTS idp;
-DROP TABLE IF EXISTS inbox;
-DROP TABLE IF EXISTS webhook;
-
 -- migration_history
 CREATE TABLE migration_history (
   version TEXT NOT NULL PRIMARY KEY,
@@ -55,6 +39,7 @@ CREATE TABLE user_setting (
 -- memo
 CREATE TABLE memo (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
+  resource_name TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,
   created_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),
   updated_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),
@@ -86,6 +71,7 @@ CREATE TABLE memo_relation (
 -- resource
 CREATE TABLE resource (
   id INTEGER PRIMARY KEY AUTOINCREMENT,
+  resource_name TEXT NOT NULL UNIQUE,
   creator_id INTEGER NOT NULL,
   created_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),
   updated_ts BIGINT NOT NULL DEFAULT (strftime('%s', 'now')),