diff --git a/migrations/Version20241017134137.php b/migrations/Version20241017134137.php
new file mode 100644
index 0000000..0dc3e3c
--- /dev/null
+++ b/migrations/Version20241017134137.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20241017134137 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE SEQUENCE announcement_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE SEQUENCE company_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE SEQUENCE userApp_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE TABLE announcement (id INT NOT NULL, title VARCHAR(255) NOT NULL, description VARCHAR(255) NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE TABLE company (id INT NOT NULL, name VARCHAR(255) NOT NULL, address VARCHAR(255) NOT NULL, tel VARCHAR(255) NOT NULL, mail VARCHAR(255) NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE TABLE employee (id INT NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE TABLE intern (id INT NOT NULL, cover_letter TEXT NOT NULL, resume VARCHAR(255) NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE TABLE userApp (id INT NOT NULL, nickname VARCHAR(180) NOT NULL, roles JSON NOT NULL, password VARCHAR(255) NOT NULL, first_name VARCHAR(255) NOT NULL, last_name VARCHAR(255) NOT NULL, tel VARCHAR(255) NOT NULL, address VARCHAR(255) NOT NULL, mail VARCHAR(255) NOT NULL, DISCRIMINATOR VARCHAR(255) NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE UNIQUE INDEX UNIQ_IDENTIFIER_NICKNAME ON userApp (nickname)');
+        $this->addSql('CREATE TABLE messenger_messages (id BIGSERIAL NOT NULL, body TEXT NOT NULL, headers TEXT NOT NULL, queue_name VARCHAR(190) NOT NULL, created_at TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, available_at TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, delivered_at TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL, PRIMARY KEY(id))');
+        $this->addSql('CREATE INDEX IDX_75EA56E0FB7336F0 ON messenger_messages (queue_name)');
+        $this->addSql('CREATE INDEX IDX_75EA56E0E3BD61CE ON messenger_messages (available_at)');
+        $this->addSql('CREATE INDEX IDX_75EA56E016BA31DB ON messenger_messages (delivered_at)');
+        $this->addSql('COMMENT ON COLUMN messenger_messages.created_at IS \'(DC2Type:datetime_immutable)\'');
+        $this->addSql('COMMENT ON COLUMN messenger_messages.available_at IS \'(DC2Type:datetime_immutable)\'');
+        $this->addSql('COMMENT ON COLUMN messenger_messages.delivered_at IS \'(DC2Type:datetime_immutable)\'');
+        $this->addSql('CREATE OR REPLACE FUNCTION notify_messenger_messages() RETURNS TRIGGER AS $$
+            BEGIN
+                PERFORM pg_notify(\'messenger_messages\', NEW.queue_name::text);
+                RETURN NEW;
+            END;
+        $$ LANGUAGE plpgsql;');
+        $this->addSql('DROP TRIGGER IF EXISTS notify_trigger ON messenger_messages;');
+        $this->addSql('CREATE TRIGGER notify_trigger AFTER INSERT OR UPDATE ON messenger_messages FOR EACH ROW EXECUTE PROCEDURE notify_messenger_messages();');
+        $this->addSql('ALTER TABLE employee ADD CONSTRAINT FK_5D9F75A1BF396750 FOREIGN KEY (id) REFERENCES userApp (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE intern ADD CONSTRAINT FK_A5795F36BF396750 FOREIGN KEY (id) REFERENCES userApp (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE SCHEMA public');
+        $this->addSql('DROP SEQUENCE announcement_id_seq CASCADE');
+        $this->addSql('DROP SEQUENCE company_id_seq CASCADE');
+        $this->addSql('DROP SEQUENCE userApp_id_seq CASCADE');
+        $this->addSql('ALTER TABLE employee DROP CONSTRAINT FK_5D9F75A1BF396750');
+        $this->addSql('ALTER TABLE intern DROP CONSTRAINT FK_A5795F36BF396750');
+        $this->addSql('DROP TABLE announcement');
+        $this->addSql('DROP TABLE company');
+        $this->addSql('DROP TABLE employee');
+        $this->addSql('DROP TABLE intern');
+        $this->addSql('DROP TABLE userApp');
+        $this->addSql('DROP TABLE messenger_messages');
+    }
+}
diff --git a/migrations/Version20241017142722.php b/migrations/Version20241017142722.php
new file mode 100644
index 0000000..73818a8
--- /dev/null
+++ b/migrations/Version20241017142722.php
@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20241017142722 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE SEQUENCE status_id_seq INCREMENT BY 1 MINVALUE 1 START 1');
+        $this->addSql('CREATE TABLE status (id INT NOT NULL, label VARCHAR(255) NOT NULL, PRIMARY KEY(id))');
+        $this->addSql('ALTER TABLE announcement ADD company_id INT NOT NULL');
+        $this->addSql('ALTER TABLE announcement ADD status_id INT NOT NULL');
+        $this->addSql('ALTER TABLE announcement ADD CONSTRAINT FK_4DB9D91C979B1AD6 FOREIGN KEY (company_id) REFERENCES company (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE announcement ADD CONSTRAINT FK_4DB9D91C6BF700BD FOREIGN KEY (status_id) REFERENCES status (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('CREATE INDEX IDX_4DB9D91C979B1AD6 ON announcement (company_id)');
+        $this->addSql('CREATE INDEX IDX_4DB9D91C6BF700BD ON announcement (status_id)');
+        $this->addSql('ALTER TABLE employee ADD company_id INT NOT NULL');
+        $this->addSql('ALTER TABLE employee ADD CONSTRAINT FK_5D9F75A1979B1AD6 FOREIGN KEY (company_id) REFERENCES company (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('CREATE INDEX IDX_5D9F75A1979B1AD6 ON employee (company_id)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE SCHEMA public');
+        $this->addSql('ALTER TABLE announcement DROP CONSTRAINT FK_4DB9D91C6BF700BD');
+        $this->addSql('DROP SEQUENCE status_id_seq CASCADE');
+        $this->addSql('DROP TABLE status');
+        $this->addSql('ALTER TABLE announcement DROP CONSTRAINT FK_4DB9D91C979B1AD6');
+        $this->addSql('DROP INDEX IDX_4DB9D91C979B1AD6');
+        $this->addSql('DROP INDEX IDX_4DB9D91C6BF700BD');
+        $this->addSql('ALTER TABLE announcement DROP company_id');
+        $this->addSql('ALTER TABLE announcement DROP status_id');
+        $this->addSql('ALTER TABLE employee DROP CONSTRAINT FK_5D9F75A1979B1AD6');
+        $this->addSql('DROP INDEX IDX_5D9F75A1979B1AD6');
+        $this->addSql('ALTER TABLE employee DROP company_id');
+    }
+}
diff --git a/migrations/Version20241017152949.php b/migrations/Version20241017152949.php
new file mode 100644
index 0000000..1282d23
--- /dev/null
+++ b/migrations/Version20241017152949.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20241017152949 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE favorites (intern_id INT NOT NULL, announcement_id INT NOT NULL, PRIMARY KEY(intern_id, announcement_id))');
+        $this->addSql('CREATE INDEX IDX_E46960F5525DD4B4 ON favorites (intern_id)');
+        $this->addSql('CREATE INDEX IDX_E46960F5913AEA17 ON favorites (announcement_id)');
+        $this->addSql('CREATE TABLE applications (intern_id INT NOT NULL, announcement_id INT NOT NULL, PRIMARY KEY(intern_id, announcement_id))');
+        $this->addSql('CREATE INDEX IDX_F7C966F0525DD4B4 ON applications (intern_id)');
+        $this->addSql('CREATE INDEX IDX_F7C966F0913AEA17 ON applications (announcement_id)');
+        $this->addSql('ALTER TABLE favorites ADD CONSTRAINT FK_E46960F5525DD4B4 FOREIGN KEY (intern_id) REFERENCES intern (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE favorites ADD CONSTRAINT FK_E46960F5913AEA17 FOREIGN KEY (announcement_id) REFERENCES announcement (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE applications ADD CONSTRAINT FK_F7C966F0525DD4B4 FOREIGN KEY (intern_id) REFERENCES intern (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('ALTER TABLE applications ADD CONSTRAINT FK_F7C966F0913AEA17 FOREIGN KEY (announcement_id) REFERENCES announcement (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE SCHEMA public');
+        $this->addSql('ALTER TABLE favorites DROP CONSTRAINT FK_E46960F5525DD4B4');
+        $this->addSql('ALTER TABLE favorites DROP CONSTRAINT FK_E46960F5913AEA17');
+        $this->addSql('ALTER TABLE applications DROP CONSTRAINT FK_F7C966F0525DD4B4');
+        $this->addSql('ALTER TABLE applications DROP CONSTRAINT FK_F7C966F0913AEA17');
+        $this->addSql('DROP TABLE favorites');
+        $this->addSql('DROP TABLE applications');
+    }
+}