diff --git a/2/ASGBD/examenes/examen-1er-trimestre.sql b/2/ASGBD/examenes/examen-1er-trimestre.sql
new file mode 100644
index 0000000..bb9e322
--- /dev/null
+++ b/2/ASGBD/examenes/examen-1er-trimestre.sql
@@ -0,0 +1,62 @@
+/* Nicolás A. Ortega Froysa*/
+ALTER SESSION SET "_ORACLE_SCRIPT" = TRUE;
+
+CREATE TABLESPACE TBSP_COMERCIAL
+    DATAFILE 'C:\ABD\TS\tbsp_comercial.dbf'
+    SIZE 1M;
+CREATE TABLESPACE TBSP_FABRICA
+    DATAFILE 'C:\ABD\TS\tbsp_fabrica.dbf'
+    SIZE 1M;
+
+CREATE USER COMERCIAL IDENTIFIED BY COMERCIAL
+    DEFAULT TABLESPACE TBSP_COMERCIAL;
+CREATE USER FABRICA IDENTIFIED BY FABRICA
+    DEFAULT TABLESPACE TBSP_FABRICA;
+
+DROP TABLE COMERCIAL.clientes;
+CREATE TABLE COMERCIAL.clientes(
+    codigo INT,
+    nombre VARCHAR(50),
+    fecha_registro DATE);
+
+CREATE TABLESPACE TBSP_PEDIDOS
+    DATAFILE 'C:\ABD\TS\tbsp_pedidos.dbf'
+    SIZE 1M
+    AUTOEXTEND ON MAXSIZE 10M;
+
+DROP TABLE COMERCIAL.pedidos;
+CREATE TABLE COMERCIAL.pedidos(
+    num_pedido INT,
+    cliente_codigo INT,
+    articulo_codigo VARCHAR2(20),
+    precio_total NUMBER,
+    fecha_pedido DATE) TABLESPACE TBSP_PEDIDOS;
+
+DROP TABLE FABRICA.articulos;
+CREATE TABLE FABRICA.articulos(
+    codigo_articulo VARCHAR2(20),
+    fecha_registro_cliente DATE,
+    nombre VARCHAR2(20) NOT NULL,
+    precio NUMBER(2),
+    fecha_pedido DATE);
+
+REVOKE ALL ON COMERCIAL.pedidos FROM PUBLIC;
+GRANT READ ON COMERCIAL.pedidos TO COMERCIAL;
+
+REVOKE ALL ON COMERCIAL.clientes FROM FABRICA;
+
+GRANT READ,INSERT,UPDATE,DELETE ON FABRICA.articulos TO COMERCIAL
+    WITH GRANT OPTION;
+
+CREATE USER JEFE_COMERCIAL
+    IDENTIFIED BY JEFE_COMERCIAL
+    DEFAULT TABLESPACE TBSP_COMERCIAL;
+GRANT ALL ON COMERCIAL.pedidos TO JEFE_COMERCIAL
+    WITH GRANT OPTION;
+GRANT ALL ON COMERCIAL.clientes TO JEFE_COMERCIAL
+    WITH GRANT OPTION;
+
+SELECT c.nombre, SUM(p.precio_total)
+    FROM COMERCIAL.pedidos p
+    JOIN COMERCIAL.clientes c ON p.cliente_codigo=c.codigo
+    GROUP BY c.nombre;
\ No newline at end of file