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sqlteradatasql-delete

Delete statement not working for a Decimal column

I am working on a delete statement as below:

DEL FROM X.SALES1
WHERE CAST(SALES_T_ID AS DECIMAL(18,0)) IN(

SEL CAST(T1.SALES_T_ID AS DECIMAL(18,0) )FROM
(
SEL *  FROM 
X.SALES1
QUALIFY ROW_NUMBER() OVER( PARTITION BY SALES_SRC_ID,DSTC ORDER BY UPDATED_DATE_TIMESTAMP DESC) >1
) T1
) ;

The above delete should keep the latest record and delete the rest. However, it is deleting all the records. I have checked the inner query and working fine, selecting only the records other than the latest updated one. But i am not able to understand why it's deleting all the records?

Below is the Table structure:

CREATE SET TABLE X.SALES1 ,FALLBACK ,
     NO BEFORE JOURNAL,
     NO AFTER JOURNAL,
     CHECKSUM = DEFAULT,
     DEFAULT MERGEBLOCKRATIO,
     MAP = TD_MAP1
     (
      SALES_T_ID DECIMAL(18,0),
      SALES_TRANS_NUM VARCHAR(30) CHARACTER SET LATIN NOT CASESPECIFIC,
      SALES_SRC_ID VARCHAR(20) CHARACTER SET LATIN NOT CASESPECIFIC,
      SALES_TRANS_START_DTTM TIMESTAMP(0),
      ST_EXPECTED_CLOSE_DTTM TIMESTAMP(0),
      ST_ACTUAL_CLOSE_DTTM TIMESTAMP(0),
      ST_ACT_CONT_DTTM TIMESTAMP(0),
      ST_EXP_CONT_CLS_DTTM TIMESTAMP(0)
)
PRIMARY INDEX ( SALES_T_ID );

Sample data:

SALES_T_ID SALES_SRC_ID
715,603    3-3SDDJH5
593,803    3-3SDDJH5
715,604    3-3SDDJIG
593,804    3-3SDDJIG
715,605    3-3SDDJJR

EDIT: enter image description here

My requirement is to keep only the latest row for the combination of Sales_trans_src_id and data_source_type_cd based on updated_date_timestamp.

Solution 
  • DEL FROM X.SALES1
WHERE CAST(SALES_T_ID AS DECIMAL(18,0)) IN(

SEL CAST(T1.SALES_T_ID AS DECIMAL(18,0) )FROM
(
SEL *  FROM 
X.SALES1
QUALIFY rank() OVER( PARTITION BY SALES_SRC_ID,DSTC ORDER BY UPDATED_DATE_TIMESTAMP DESC) > 1
) T1
;

    can you check this ) ;