From d777123d33768d74b77c3b999ad7d8008dda4bea Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>
Date: Mon, 1 Feb 2021 21:08:58 +0100
Subject: [PATCH] new

---
 add-iban-mieter.sql |  2 ++
 format-iban.sql     | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 add-iban-mieter.sql
 create mode 100644 format-iban.sql

diff --git a/add-iban-mieter.sql b/add-iban-mieter.sql
new file mode 100644
index 0000000..880fd94
--- /dev/null
+++ b/add-iban-mieter.sql
@@ -0,0 +1,2 @@
+alter table mieter
+    add column iban varchar(34);
\ No newline at end of file
diff --git a/format-iban.sql b/format-iban.sql
new file mode 100644
index 0000000..87fae3f
--- /dev/null
+++ b/format-iban.sql
@@ -0,0 +1,33 @@
+delimiter //
+
+create or replace function format_iban(p_iban varchar(34)) returns varchar(34)
+begin
+    declare v_country varchar(2);
+    declare v_part1 varchar(4);
+    declare v_part2 varchar(4);
+    declare v_part3 varchar(4);
+    declare v_part4 varchar(4);
+    declare v_part5 varchar(4);
+    declare v_part6 varchar(2);
+    declare v_result varchar(34);
+
+    set v_country = substring(p_iban from 1 for 2);
+
+    if (v_country = 'DE') then
+        set v_part1 = substring(p_iban from 3 for 2);
+        set v_part2 = substring(p_iban from 5 for 4);
+        set v_part3 = substring(p_iban from 9 for 4);
+        set v_part4 = substring(p_iban from 13 for 4);
+        set v_part5 = substring(p_iban from 17 for 4);
+        set v_part6 = substring(p_iban from 21 for 2);
+        set v_result = concat(v_country, ' ', v_part1, ' ', v_part2, ' ', v_part3, ' ',
+                              v_part4, ' ', v_part5, ' ', v_part6);
+    else
+        set v_result = p_iban;
+    end if;
+
+    return v_result;
+end;
+//
+
+delimiter ;