diff --git a/db/migrate/20251117202517_change_usage_limit_to_bigint_in_account_join_codes.rb b/db/migrate/20251117202517_change_usage_limit_to_bigint_in_account_join_codes.rb
new file mode 100644
index 000000000..f7289e5a5
--- /dev/null
+++ b/db/migrate/20251117202517_change_usage_limit_to_bigint_in_account_join_codes.rb
@@ -0,0 +1,6 @@
+class ChangeUsageLimitToBigintInAccountJoinCodes < ActiveRecord::Migration[8.2]
+  def change
+    change_column :account_join_codes, :usage_count, :bigint
+    change_column :account_join_codes, :usage_limit, :bigint
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index ea70eb668..abb762d69 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.2].define(version: 2025_11_17_192434) do
+ActiveRecord::Schema[8.2].define(version: 2025_11_17_202517) do
   create_table "accesses", id: :uuid, charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.datetime "accessed_at"
     t.uuid "account_id", null: false
@@ -30,8 +30,8 @@ ActiveRecord::Schema[8.2].define(version: 2025_11_17_192434) do
     t.string "code", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
-    t.integer "usage_count", default: 0, null: false
-    t.integer "usage_limit", default: 10, null: false
+    t.bigint "usage_count", default: 0, null: false
+    t.bigint "usage_limit", default: 10, null: false
     t.index ["account_id", "code"], name: "index_account_join_codes_on_account_id_and_code", unique: true
   end
 
diff --git a/script/import-sqlite-database.rb b/script/import-sqlite-database.rb
index 86a16822a..ef678e5fd 100755
--- a/script/import-sqlite-database.rb
+++ b/script/import-sqlite-database.rb
@@ -128,11 +128,11 @@ class Import
         else
           @account = Account.create_with_admin_user(
             account: {
-              external_account_id: account.external_account_id.to_s,
-              name: account.name
+              external_account_id: account.external_account_id,
+              name: account.name.truncate(255, omission: "")
             },
             owner: {
-              name: oldest_admin.name,
+              name: oldest_admin.name.truncate(255, omission: ""),
               identity: new_identity
             }
           )
@@ -169,7 +169,7 @@ class Import
             User.create!(
               account: account,
               identity: new_identity,
-              name: old_user.name,
+              name: old_user.name.truncate(255, omission: ""),
               role: old_user.role,
               active: old_user.active,
             )
@@ -198,7 +198,7 @@ class Import
           new_board = Board.create!(
             account_id: account.id,
             creator_id: mapping[:users][old_board.creator_id],
-            name: old_board.name,
+            name: old_board.name.truncate(255, omission: ""),
             all_access: old_board.all_access,
             created_at: old_board.created_at,
             updated_at: old_board.updated_at
@@ -229,7 +229,7 @@ class Import
           new_column = Column.create!(
             account_id: account.id,
             board_id: mapping[:boards][old_column.board_id],
-            name: old_column.name,
+            name: old_column.name.truncate(255, omission: ""),
             color: old_column.color,
             position: old_column.position,
             created_at: old_column.created_at,
@@ -848,7 +848,7 @@ class Import
           new_webhook = Webhook.create!(
             account_id: account.id,
             board_id: mapping[:boards][old_webhook.board_id],
-            name: old_webhook.name,
+            name: old_webhook.name.truncate(255, omission: ""),
             url: old_webhook.url,
             signing_secret: old_webhook.signing_secret,
             subscribed_actions: subscribed_actions,