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fnc_26ai_rag_vllm.sql

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+create or replace FUNCTION "FNC_26AI_RAG_VLLM" (p_ai_prompt IN clob)
+RETURN CLOB AS
+      v_gen_ai_model varchar2(500) :='openai/gpt-oss-120b';
+      resp dbms_cloud_types.RESP;
+BEGIN
+/*
+
+  Criado por: fernando.leal@oracle.com
+  Data: Mar/2026
+  Objetivo: RAG via PL/SQL usando um vLLM em arquitetura LOCAL
+
+  v1 - funcao de RAG usando openai/gpt-oss-120b - fleal
+
+ Set host to local to disable credential
+ The provider value must specify openai
+ https://docs.oracle.com/en/database/oracle/oracle-database/26/vecse/utl_to_embedding-and-utl_to_embeddings-dbms_vector_chain.html
+
+*/
+		  
+        resp := dbms_cloud.send_request(
+    				  credential_name => NULL,
+    				  uri             => 'https://hub-gpus.DOMINIO.com.br/gpt120/v1/chat/completions',
+    				  method          => DBMS_CLOUD.METHOD_POST,
+    				  headers         => JSON_OBJECT('Content-Type' VALUE 'application/json'),
+    				  body            => UTL_RAW.CAST_TO_RAW('{"model": "' || v_gen_ai_model || '",
+    			                                  "messages": [{"role": "user",
+    											                "content": "' || p_ai_prompt || '"
+    															}]}')
+    			  );
+  
+
+    --RETURN json_value(  dbms_cloud.get_response_text(resp) , '$.chatResponse.choices[0].message.content[0].text') ;
+    --
+    RETURN DBMS_CLOUD.GET_RESPONSE_TEXT(resp) ;
+
+    /* opcao 2:
+    declare
+        params clob;
+        input clob;
+        response clob;
+    begin
+        input := '[{"role": "user","content": "Fale sobre a Oracle"}]';
+              params := '{
+              "provider": "openai",
+              "url": "https://hub-gpus.DOMINIO.com.br/gpt120/v1/chat/completions",
+              "host": "local",
+              "model": "openai/gpt-oss-120b"}';
+        response := dbms_vector_chain.utl_to_generate_text(  input , json(params)) ;
+		DBMS_OUTPUT.PUT_LINE(response);
+    end; */
+
+EXCEPTION
+ WHEN OTHERS THEN
+     RETURN sqlerrm;    
+END;
+/