Hi, Thank you very much,however,in Oracle 10.2,I got the ddl sql text through that way because the value of ora_sql_txt(sql_text) is 1 in ddl trigger,but when it comes to dml statement,the value of ora_sql_txt(sql_text) is null,which confused me greatly. ----- Original Message ----- From: Nigel Thomas To: xiaoyezi.xyz@xxxxxxx ; oracle-l Sent: Tuesday, August 01, 2006 11:55 PM Subject: Re: help about ora_sql_txt(sql_text) Xiaoyan It seems ora_sql_text returns null on 10g - see http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:1380003556171 and other google hits. sorry, that doesn't really answer your question, but it does explain why you get no SQL... Cheers Nigel ----- Original Message ---- From: xiaoyan <xiaoyezi.xyz@xxxxxxx> To: oracle-l@xxxxxxxxxxxxx Sent: Tuesday, August 1, 2006 4:01:36 PM Subject: help about ora_sql_txt(sql_text) How to get the sql text when a user executes a dml statment? I wrote a trigger like this:(a triiger on the table 'T' of schema 'TEST') CREATE OR REPLACE TRIGGER test AFTER insert ON test.t declare sql_text ora_name_list_t; state_sql dml_trace.ddl_sql%TYPE; BEGIN FOR i IN 1..ora_sql_txt(sql_text) LOOP state_sql := state_sql||sql_text(i); INSERT INTO t VALUES (i); END LOOP; INSERT INTO dml_trace(user_name,ipaddress,audit_time,schema_user,schema_object,ddl_sql) VALUES(sys_context('userenv','session_user'),sys_context('userenv','ip_address'),SYSDATE, ora_dict_obj_owner,ora_dict_obj_name,state_sql); EXCEPTION WHEN OTHERS THEN RAISE_APPLICATION_ERROR(-20333,'There is exception!' ); end test; but when a user executes a insert on test.t,there is a exception,and through a dbms_output.put_line('ora_sql_txt(sql_text)is'||ora_sql_txt(sql_text)) I found the value of ora_sql_txt(sql_text) is null,then how can I get a dml text?