1. PostgreSQL copy of all MySQL created and tested.\n 2. Purchase Orders and Sales Orders and stock level management added to MySQL, PostgreSQL, and server and front end code.

static/MySQL/365_tri_Shop_Address.sql

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+
+# Shop Address
+
+USE PARTSLTD_PROD;
+
+DROP TRIGGER IF EXISTS before_insert_Shop_Address;
+DROP TRIGGER IF EXISTS before_update_Shop_Address;
+
+
+DELIMITER //
+CREATE TRIGGER before_insert_Shop_Address
+BEFORE INSERT ON Shop_Address
+FOR EACH ROW
+BEGIN
+	IF NEW.created_on <=> NULL THEN
+		SET NEW.created_on = NOW();
+	END IF;
+    IF NEW.created_by <=> NULL THEN
+		SET NEW.created_by = CURRENT_USER();
+	END IF;
+END //
+DELIMITER ;
+
+
+DELIMITER //
+CREATE TRIGGER before_update_Shop_Address
+BEFORE UPDATE ON Shop_Address
+FOR EACH ROW
+BEGIN
+	IF OLD.id_change_set <=> NEW.id_change_set THEN
+		SIGNAL SQLSTATE '45000'
+        SET MESSAGE_TEXT = 'New change Set ID must be provided.';
+    END IF;
+    
+    INSERT INTO Shop_Address_Audit (
+		id_address,
+        name_field,
+        value_prev,
+        value_new,
+        id_change_set
+    )
+    # Changed region
+	SELECT NEW.id_address, 'id_region', OLD.id_region, NEW.id_region, NEW.id_change_set
+		WHERE NOT OLD.id_region <=> NEW.id_region
+    UNION
+    # Changed name_full
+	SELECT NEW.id_address, 'name_full', OLD.name_full, NEW.name_full, NEW.id_change_set
+		WHERE NOT OLD.name_full <=> NEW.name_full
+	UNION
+    # Changed phone_number
+	SELECT NEW.id_address, 'phone_number', OLD.phone_number, NEW.phone_number, NEW.id_change_set
+		WHERE NOT OLD.phone_number <=> NEW.phone_number
+    UNION
+    # Changed postcode
+	SELECT NEW.id_address, 'postcode', OLD.postcode, NEW.postcode, NEW.id_change_set
+		WHERE NOT OLD.postcode <=> NEW.postcode
+    UNION
+    # Changed address_line_1
+	SELECT NEW.id_address, 'address_line_1', OLD.address_line_1, NEW.address_line_1, NEW.id_change_set
+		WHERE NOT OLD.address_line_1 <=> NEW.address_line_1
+	UNION
+    # Changed address_line_2
+	SELECT NEW.id_address, 'address_line_2', OLD.address_line_2, NEW.address_line_2, NEW.id_change_set
+		WHERE NOT OLD.address_line_2 <=> NEW.address_line_2
+	UNION
+    # Changed city
+	SELECT NEW.id_address, 'city', OLD.city, NEW.city, NEW.id_change_set
+		WHERE NOT OLD.city <=> NEW.city
+    UNION
+    # Changed county
+	SELECT NEW.id_address, 'county', OLD.county, NEW.county, NEW.id_change_set
+		WHERE NOT OLD.county <=> NEW.county
+	UNION
+	# Changed active
+	SELECT NEW.id_address, 'active', CONVERT(CONVERT(OLD.active, SIGNED), CHAR), CONVERT(CONVERT(NEW.active, SIGNED), CHAR), NEW.id_change_set
+		WHERE NOT (OLD.active <=> NEW.active)
+    ;
+END //
+DELIMITER ;