REGEXP_REPLACE查询Oracle

Question

I have a text like following.

    ( ( tt.TRAN_TYPE IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1332 )
   AND tt.CONTRACT IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1333 )
   AND tt.CUSTOMER_STATE NOT IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1334)
   AND tt.COT_IND IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1335 ))
OR     ( tt.TRAN_TYPE IN
        ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1336 )
   AND tt.WHLSE_COT NOT IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1337 )
   AND tt.COT_IND IN
       ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1338 )) )

I need to replace tt.* with condition tt.* IS NOT NULL and tt.*... as below.

( 
          ( (tt.TRAN_TYPE IS NOT NULL AND tt.TRAN_TYPE IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1332 ))
          AND (tt.CONTRACT IS NOT NULL AND tt.CONTRACT IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1333))
          AND (tt.CUSTOMER_STATE IS NOT NULL AND tt.CUSTOMER_STATE NOT IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1334))
          AND (tt.COT_IND IS NOT NULL AND tt.COT_IND IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1335)))
        OR ( (tt.TRAN_TYPE IS NOT NULL AND tt.TRAN_TYPE IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1336))
          AND (tt.WHLSE_COT IS NOT NULL AND tt.WHLSE_COT NOT IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1337))
          AND (tt.COT_IND IS NOT NULL AND tt.COT_IND IN ( SELECT RULE_VALUE FROM GP_RULE_VALUE WHERE RULE_ID=1338))) 
          )

Please provide REGEXP_REPLACE or Any other trick if available in ORACLE.

NOTE : To me main challenge seems to be replace such a way that query order remains proper (ie opening and closing brackets placing properly)

Answer 1

Try this.

SELECT REGEXP_REPLACE (yourtext, 'tt\.(.+) ', 'tt.\1 IS NOT NULL AND tt.\1 ')
  FROM yourtable;