2026-03-12 20:23:15

timhall/miscellaneous/blob_to_clob.sql

@@ -0,0 +1,33 @@
+CREATE OR REPLACE FUNCTION blob_to_clob (p_data  IN  BLOB)
+  RETURN CLOB
+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/miscellaneous/blob_to_clob.sql
+-- Author       : Tim Hall
+-- Description  : Converts a BLOB to a CLOB.
+-- Last Modified: 26/12/2016
+-- -----------------------------------------------------------------------------------
+AS
+  l_clob         CLOB;
+  l_dest_offset  PLS_INTEGER := 1;
+  l_src_offset   PLS_INTEGER := 1;
+  l_lang_context PLS_INTEGER := DBMS_LOB.default_lang_ctx;
+  l_warning      PLS_INTEGER;
+BEGIN
+
+  DBMS_LOB.createTemporary(
+    lob_loc => l_clob,
+    cache   => TRUE);
+
+  DBMS_LOB.converttoclob(
+   dest_lob      => l_clob,
+   src_blob      => p_data,
+   amount        => DBMS_LOB.lobmaxsize,
+   dest_offset   => l_dest_offset,
+   src_offset    => l_src_offset, 
+   blob_csid     => DBMS_LOB.default_csid,
+   lang_context  => l_lang_context,
+   warning       => l_warning);
+   
+   RETURN l_clob;
+END;
+/