diff --git a/backend/create.sql b/backend/create.sql
new file mode 100644
index 0000000..87ddab1
--- /dev/null
+++ b/backend/create.sql
@@ -0,0 +1,6 @@
+create table tb_sales (id int8 generated by default as identity, amount float8, date date, deals int4, visited int4, seller_id int8, primary key (id));
+create table tb_sellers (id int8 generated by default as identity, name varchar(255), primary key (id));
+alter table if exists tb_sales add constraint FKp0nn0oixeiw2fq3jivj6vnsu foreign key (seller_id) references tb_sellers;
+create table tb_sales (id int8 generated by default as identity, amount float8, date date, deals int4, visited int4, seller_id int8, primary key (id));
+create table tb_sellers (id int8 generated by default as identity, name varchar(255), primary key (id));
+alter table if exists tb_sales add constraint FKp0nn0oixeiw2fq3jivj6vnsu foreign key (seller_id) references tb_sellers;
diff --git a/backend/src/main/resources/application-dev.properties b/backend/src/main/resources/application-dev.properties
new file mode 100644
index 0000000..5ab694a
--- /dev/null
+++ b/backend/src/main/resources/application-dev.properties
@@ -0,0 +1,11 @@
+#spring.jpa.properties.javax.persistence.schema-generation.create-source=metadata
+#spring.jpa.properties.javax.persistence.schema-generation.scripts.action=create
+#spring.jpa.properties.javax.persistence.schema-generation.scripts.create-target=create.sql
+#spring.jpa.properties.hibernate.hbm2ddl.delimiter=;
+
+spring.datasource.url=jdbc:postgresql://localhost:5432/dsvendas
+spring.datasource.username=postgres
+spring.datasource.password=root
+
+spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true
+spring.jpa.hibernate.ddl-auto=none
diff --git a/backend/src/main/resources/application-prod.properties b/backend/src/main/resources/application-prod.properties
new file mode 100644
index 0000000..630f526
--- /dev/null
+++ b/backend/src/main/resources/application-prod.properties
@@ -0,0 +1 @@
+spring.datasource.url=${DATABASE_URL}
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index cc52da4..7882ee3 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -1,2 +1,3 @@
-spring.jpa.open-in-view=false
-spring.profiles.active=test
\ No newline at end of file
+spring.profiles.active=${APP_PROFILE:test}
+
+spring.jpa.open-in-view=false
\ No newline at end of file
diff --git a/backend/system.properties b/backend/system.properties
new file mode 100644
index 0000000..180a273
--- /dev/null
+++ b/backend/system.properties
@@ -0,0 +1 @@
+java.runtime.version=11
\ No newline at end of file