diff --git a/apps/backend/src/drizzle/schema/permissions.ts b/apps/backend/src/drizzle/schema/permissions.ts
index f4a2461..90b13ba 100644
--- a/apps/backend/src/drizzle/schema/permissions.ts
+++ b/apps/backend/src/drizzle/schema/permissions.ts
@@ -5,13 +5,13 @@ import { permissionsToUsers } from "./permissionsToUsers";
 import { permissionsToRoles } from "./permissionsToRoles";
 
 export const permissionsSchema = pgTable("permissions", {
-	id: text("id")
+	id: varchar("id", { length: 50 })
 		.primaryKey()
 		.$defaultFn(() => createId()),
 	code: varchar("code", { length: 50 }).notNull().unique(),
 	description: varchar("description", { length: 255 }),
-	createdAt: timestamp("created_at").defaultNow(),
-	updatedAt: timestamp("updated_at").defaultNow(),
+	createdAt: timestamp("createdAt").defaultNow(),
+	updatedAt: timestamp("updatedAt").defaultNow(),
 });
 
 export const permissionsRelations = relations(
diff --git a/apps/backend/src/drizzle/schema/permissionsToRoles.ts b/apps/backend/src/drizzle/schema/permissionsToRoles.ts
index ddce625..72ead8c 100644
--- a/apps/backend/src/drizzle/schema/permissionsToRoles.ts
+++ b/apps/backend/src/drizzle/schema/permissionsToRoles.ts
@@ -1,4 +1,4 @@
-import { pgTable, primaryKey, text } from "drizzle-orm/pg-core";
+import { pgTable, primaryKey, varchar } from "drizzle-orm/pg-core";
 import { permissionsSchema } from "./permissions";
 import { relations } from "drizzle-orm";
 import { rolesSchema } from "./roles";
@@ -6,10 +6,10 @@ import { rolesSchema } from "./roles";
 export const permissionsToRoles = pgTable(
 	"permissions_to_roles",
 	{
-		roleId: text("roleId")
+		roleId: varchar("roleId", { length: 50 })
 			.notNull()
 			.references(() => rolesSchema.id),
-		permissionId: text("permissionId")
+		permissionId: varchar("permissionId", { length: 50 })
 			.notNull()
 			.references(() => permissionsSchema.id),
 	},
diff --git a/apps/backend/src/drizzle/schema/permissionsToUsers.ts b/apps/backend/src/drizzle/schema/permissionsToUsers.ts
index 110b433..117c030 100644
--- a/apps/backend/src/drizzle/schema/permissionsToUsers.ts
+++ b/apps/backend/src/drizzle/schema/permissionsToUsers.ts
@@ -1,4 +1,4 @@
-import { pgTable, primaryKey, text } from "drizzle-orm/pg-core";
+import { pgTable, primaryKey, varchar } from "drizzle-orm/pg-core";
 import { users } from "./users";
 import { permissionsSchema } from "./permissions";
 import { relations } from "drizzle-orm";
@@ -6,10 +6,10 @@ import { relations } from "drizzle-orm";
 export const permissionsToUsers = pgTable(
 	"permissions_to_users",
 	{
-		userId: text("userId")
+		userId: varchar("userId", { length: 50 })
 			.notNull()
 			.references(() => users.id),
-		permissionId: text("permissionId")
+		permissionId: varchar("permissionId", { length: 50 })
 			.notNull()
 			.references(() => permissionsSchema.id),
 	},
diff --git a/apps/backend/src/drizzle/schema/roles.ts b/apps/backend/src/drizzle/schema/roles.ts
index 6b8bfe5..61e585d 100644
--- a/apps/backend/src/drizzle/schema/roles.ts
+++ b/apps/backend/src/drizzle/schema/roles.ts
@@ -4,14 +4,14 @@ import { pgTable, text, timestamp, varchar } from "drizzle-orm/pg-core";
 import { permissionsToRoles } from "./permissionsToRoles";
 
 export const rolesSchema = pgTable("roles", {
-	id: text("id")
+	id: varchar("id", { length: 50 })
 		.primaryKey()
 		.$defaultFn(() => createId()),
 	code: varchar("code", { length: 50 }).notNull().unique(),
 	name: varchar("name", { length: 255 }).notNull(),
 	description: varchar("description", { length: 255 }),
-	createdAt: timestamp("created_at").defaultNow(),
-	updatedAt: timestamp("updated_at").defaultNow(),
+	createdAt: timestamp("createdAt").defaultNow(),
+	updatedAt: timestamp("updatedAt").defaultNow(),
 });
 
 export const rolesRelations = relations(rolesSchema, ({ many }) => ({
diff --git a/apps/backend/src/drizzle/schema/rolesToUsers.ts b/apps/backend/src/drizzle/schema/rolesToUsers.ts
index dcf422c..396cda4 100644
--- a/apps/backend/src/drizzle/schema/rolesToUsers.ts
+++ b/apps/backend/src/drizzle/schema/rolesToUsers.ts
@@ -1,4 +1,4 @@
-import { pgTable, primaryKey, text } from "drizzle-orm/pg-core";
+import { pgTable, primaryKey, varchar } from "drizzle-orm/pg-core";
 import { users } from "./users";
 import { relations } from "drizzle-orm";
 import { rolesSchema } from "./roles";
@@ -6,10 +6,10 @@ import { rolesSchema } from "./roles";
 export const rolesToUsers = pgTable(
 	"roles_to_users",
 	{
-		userId: text("userId")
+		userId: varchar("userId", { length: 50 })
 			.notNull()
 			.references(() => users.id),
-		roleId: text("roleId")
+		roleId: varchar("roleId", { length: 50 })
 			.notNull()
 			.references(() => rolesSchema.id),
 	},
diff --git a/apps/backend/src/drizzle/schema/users.ts b/apps/backend/src/drizzle/schema/users.ts
index af91337..0574af0 100644
--- a/apps/backend/src/drizzle/schema/users.ts
+++ b/apps/backend/src/drizzle/schema/users.ts
@@ -9,22 +9,27 @@ import {
 } from "drizzle-orm/pg-core";
 import { permissionsToUsers } from "./permissionsToUsers";
 import { rolesToUsers } from "./rolesToUsers";
+import { respondents } from "./respondents";
 
 export const users = pgTable("users", {
-	id: text("id")
+	id: varchar("id", { length: 50 })
 		.primaryKey()
 		.$defaultFn(() => createId()),
 	name: varchar("name", { length: 255 }).notNull(),
 	username: varchar("username").notNull().unique(),
 	email: varchar("email"),
 	password: text("password").notNull(),
-	isEnabled: boolean("is_enable").default(true),
-	createdAt: timestamp("created_at", { mode: "date" }).defaultNow(),
-	updatedAt: timestamp("updated_at", { mode: "date" }).defaultNow(),
-	deletedAt: timestamp("deleted_at", { mode: "date" }),
+	isEnabled: boolean("isEnabled").default(true),
+	createdAt: timestamp("createdAt", { mode: "date" }).defaultNow(),
+	updatedAt: timestamp("updatedAt", { mode: "date" }).defaultNow(),
+	deletedAt: timestamp("deletedAt", { mode: "date" }),
 });
 
-export const usersRelations = relations(users, ({ many }) => ({
+export const usersRelations = relations(users, ({ many, one}) => ({
 	permissionsToUsers: many(permissionsToUsers),
 	rolesToUsers: many(rolesToUsers),
+	respondent: one(respondents, {
+		fields: [users.id],
+		references: [respondents.userId],
+	}),
 }));