extracted objects

docs/functions/F_DAY_TO_NAME.md

@@ -0,0 +1,45 @@
+# F_DAY_TO_NAME
+
+## Codice Sorgente
+
+```sql
+FUNCTION F_DAY_TO_NAME 
+(
+  DAY_NUMBER IN NUMBER 
+) RETURN VARCHAR2 AS
+    v_day_number number := DAY_NUMBER;
+    v_language varchar2(255);
+BEGIN
+    with t as (
+        select DECODE(parameter, 'NLS_CHARACTERSET', 'CHARACTER SET',
+        'NLS_LANGUAGE', 'LANGUAGE',
+        'NLS_TERRITORY', 'TERRITORY') name,
+        value from v$nls_parameters
+        WHERE parameter IN ( 'NLS_CHARACTERSET', 'NLS_LANGUAGE', 'NLS_TERRITORY')
+    )
+    select value into v_language
+    from t
+    where name = 'LANGUAGE';
+
+    if v_language = 'AMERICAN' then
+        case v_day_number
+            when 1 then return 'Domenica';
+            when 2 then return 'Lunedì';
+            when 3 then return 'Martedì';
+            when 4 then return 'Mercoledì';
+            when 5 then return 'Giovedì';
+            when 6 then return 'Venerdì';
+            when 7 then return 'Sabato';
+        end case;
+    else
+        case v_day_number
+            when 1 then return 'Lunedì';
+            when 2 then return 'Martedì';
+            when 3 then return 'Mercoledì';
+            when 4 then return 'Giovedì';
+            when 5 then return 'Venerdì';
+            when 6 then return 'Sabato';
+            when 7 then return 'Domenica';
+        end case;
+    end if;
+END F_DAY_TO_NAME;```