diff --git a/C4_Container.puml b/C4_Container.puml
index e8e8fe1..1e09def 100644
--- a/C4_Container.puml
+++ b/C4_Container.puml
@@ -40,6 +40,13 @@ skinparam rectangle<<container>> {
     BorderColor #3C7FC0
 }
 
+skinparam database<<container>> {
+    StereotypeFontColor ELEMENT_FONT_COLOR
+    FontColor ELEMENT_FONT_COLOR
+    BackgroundColor CONTAINER_BG_COLOR
+    BorderColor #3C7FC0
+}
+
 skinparam rectangle<<system>> {
     StereotypeFontColor ELEMENT_FONT_COLOR
     FontColor ELEMENT_FONT_COLOR
@@ -47,6 +54,13 @@ skinparam rectangle<<system>> {
     BorderColor #8A8A8A
 }
 
+skinparam database<<system>> {
+    StereotypeFontColor ELEMENT_FONT_COLOR
+    FontColor ELEMENT_FONT_COLOR
+    BackgroundColor SYSTEM_BG_COLOR
+    BorderColor #8A8A8A
+}
+
 skinparam package<<boundary>> {
     StereotypeFontSize 0
     FontColor #999999
@@ -85,9 +99,15 @@ endlegend
 !define Container(e_alias, e_label, e_techn) rectangle "==e_label\n//<size:TECHN_FONT_SIZE>[e_techn]</size>//" <<container>> as e_alias
 !define Container(e_alias, e_label, e_techn, e_descr) rectangle "==e_label\n//<size:TECHN_FONT_SIZE>[e_techn]</size>//\n\n e_descr" <<container>> as e_alias
 
+!define ContainerDB(e_alias, e_label, e_techn) database "==e_label\n//<size:TECHN_FONT_SIZE>[e_techn]</size>//" <<container>> as e_alias
+!define ContainerDB(e_alias, e_label, e_techn, e_descr) database "==e_label\n//<size:TECHN_FONT_SIZE>[e_techn]</size>//\n\n e_descr" <<container>> as e_alias
+
 !define System(e_alias, e_label) rectangle "==e_label" <<system>> as e_alias
 !define System(e_alias, e_label, e_descr) rectangle "==e_label\n\n e_descr" <<system>> as e_alias
 
+!define SystemDB(e_alias, e_label) database "==e_label" <<system>> as e_alias
+!define SystemDB(e_alias, e_label, e_descr) database "==e_label\n\n e_descr" <<system>> as e_alias
+
 ' Relationship
 ' ##################################
 
@@ -132,4 +152,4 @@ endlegend
 !define Lay_D(e_from, e_to) e_from -[hidden]D- e_to
 !define Lay_U(e_from, e_to) e_from -[hidden]U- e_to
 !define Lay_R(e_from, e_to) e_from -[hidden]R- e_to
-!define Lay_L(e_from, e_to) e_from -[hidden]L- e_to
\ No newline at end of file
+!define Lay_L(e_from, e_to) e_from -[hidden]L- e_to