2026-03-12 20:23:15

timhall/miscellaneous/part_hv_to_date.sql

@@ -0,0 +1,34 @@
+CREATE OR REPLACE FUNCTION part_hv_to_date (p_table_owner    IN  VARCHAR2,
+                                            p_table_name     IN VARCHAR2,
+                                            p_partition_name IN VARCHAR2)
+  RETURN DATE
+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/miscellaneous/part_hv_to_date.sql
+-- Author       : Tim Hall
+-- Description  : Create a function to turn partition HIGH_VALUE column to a date.
+-- Call Syntax  : @part_hv_to_date
+-- Last Modified: 19/01/2012
+-- Notes        : Has to re-select the value from the view as LONG cannot be passed as a parameter.
+--                Example call:
+--
+-- SELECT a.partition_name, 
+--        part_hv_to_date(a.table_owner, a.table_name, a.partition_name) as high_value
+-- FROM   all_tab_partitions a;
+--
+-- Does no error handling. 
+-- -----------------------------------------------------------------------------------
+AS
+  l_high_value VARCHAR2(32767);
+  l_date DATE;
+BEGIN
+  SELECT high_value
+  INTO   l_high_value
+  FROM   all_tab_partitions
+  WHERE  table_owner    = p_table_owner
+  AND    table_name     = p_table_name
+  AND    partition_name = p_partition_name;
+  
+  EXECUTE IMMEDIATE 'SELECT ' || l_high_value || ' FROM dual' INTO l_date;
+  RETURN l_date;
+END;
+/