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 dbms_lob.converttoclob Tips

Oracle Database Tips by Donald BurlesonMarch 7, 2015

Question:  I need to use dbms_lob.converttoclob to convert a BLOB to a CLOB,  Can you show an example of dbms_lob.converttoclob?

Answer:  The following code uses dbms_lob.converttoclob to convert a BLOB to a CLOB:

Also see this convert blob to clob script.

create or replace function v_blobtoclob(v_blob_in in blob)
return clob is

v_file_clob clob;
v_file_size integer := dbms_lob.lobmaxsize;
v_dest_offset integer := 1;
v_src_offset integer := 1;
v_blob_csid number := dbms_lob.default_csid;
v_lang_context number := dbms_lob.default_lang_ctx;
v_warning integer;
v_length number;


dbms_lob.createtemporary(v_file_clob, true);


return v_file_clob;

when others then
dbms_output.put_line('Error found');


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