Help Center/ GaussDB(DWS)/ Tool Guide/ DSC: SQL Syntax Migration Tool/ Teradata Syntax Migration/ Querying Migration Operators
Updated on 2023-04-03 GMT+08:00
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Querying Migration Operators

This section contains the migration syntax for migrating Teradata query migration operators. The migration syntax determines how the keywords and features are migrated.

For details, see the following topics:

QUALIFY

ALIAS

FORMAT and CAST

Short Keys Migration

Object Names Starting with $

QUALIFY

In general, the QUALIFY clause is accompanied by analytic functions (window functions) such as CSUM(), MDIFF(), ROW_NUMBER() and RANK(). This is addressed using sub-query that contains the window functions specified in the QUALIFY clause. Migration tools support QUALIFY with MDIFF(), RANK() and ROW_NUMBER(). QUALIFY is a Teradata extension and not an ANSI standard syntax. It is executed after the WHERE and GROUP BY clauses. QUALIFY must start in new line.

Migration tools support column name and/or expressions in the ORDER BY clause only if the column name and/or expression is explicitly included in the SELECT statement as well.

Input: QUALIFY

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SELECT
        CUSTOMER_ID
       ,CUSTOMER_NAME
  FROM
       CUSTOMER_T QUALIFY row_number( ) Over( partition BY CUSTOMER_ID ORDER BY POSTAL_CODE DESC ) = 1
;

Output

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SELECT
          CUSTOMER_ID
          ,CUSTOMER_NAME
     FROM
          (
               SELECT
                         CUSTOMER_ID
                         ,CUSTOMER_NAME
                         ,row_number( ) Over( partition BY CUSTOMER_ID ORDER BY POSTAL_CODE DESC ) AS ROW_NUM1
                    FROM
                         CUSTOMER_T
          ) Q1
     WHERE
          Q1.ROW_NUM1 = 1
;

Input: QUALIFY with MDIFF and RANK

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SELECT
           material_name
          ,unit_of_measure * standard_cost AS tot_cost
     FROM
          raw_material_t m LEFT JOIN supplies_t s
               ON s.material_id = m.material_id 
          QUALIFY rank ( ) over( ORDER BY tot_cost DESC ) IN '5'
                  OR mdiff( tot_cost ,3 ,material_name ) IS NULL
;

Output

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SELECT
          material_name
          ,tot_cost
     FROM
          (
               SELECT
                         material_name
                         ,unit_of_measure * standard_cost AS tot_cost
                         ,rank ( ) over( ORDER BY unit_of_measure * standard_cost DESC ) AS ROW_NUM1
                         ,unit_of_measure * standard_cost - (LAG( unit_of_measure * standard_cost ,3 ,NULL ) over( ORDER BY material_name )) AS ROW_NUM2
                    FROM
                         raw_material_t m LEFT JOIN supplies_t s
                              ON s.material_id = m.material_id
          ) Q1
     WHERE
          Q1.ROW_NUM1 = '5'
          OR Q1.ROW_NUM2 IS NULL
;

Input: QUALIFY with ORDER BY having columns that do not exist in the SELECT list

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SELECT Postal_Code
   FROM db_pvfc9_std.Customer_t t1
   GROUP BY Customer_Name ,Postal_Code
   QUALIFY ---comments
 (  Rank ( CHAR(Customer_Address) DESC  )  ) = 1
  ORDER BY t1.Customer_Name;

Output

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SELECT Postal_Code FROM
           ( SELECT Customer_Name, Postal_Code
    , Rank () over( PARTITION BY Customer_Name, Postal_Code ORDER BY LENGTH(Customer_Address) DESC ) AS Rank_col
               FROM db_pvfc9_std.Customer_t t1
           ) Q1
      WHERE /*comments*/
    Q1.Rank_col = 1
  ORDER BY Q1.Customer_Name;

Input: QUALIFY with COLUMN ALIAS - the corresponding column expression should not be added again in SELECT list.

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SELECT material_name, unit_of_measure * standard_cost as tot_cost,
        RANK() over(order by tot_cost desc) vendor_cnt
 FROM raw_material_t m left join supplies_t s
 ON s.material_id = m.material_id
 QUALIFY vendor_cnt < 5 or MDIFF(tot_cost, 3, material_name) IS NULL;

Output

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SELECT material_name, tot_cost, vendor_cnt
   FROM  ( SELECT material_name
                       , unit_of_measure * standard_cost AS tot_cost
                      , rank () over (ORDER BY tot_cost DESC) vendor_cnt
                      , tot_cost - ( LAG(tot_cost ,3 ,NULL) over (ORDER BY material_name) ) AS anltfn
               FROM raw_material_t m LEFT JOIN supplies_t s
                  ON s.material_id = m.material_id
           ) Q1
      WHERE  Q1.vendor_cnt < 5 OR Q1.anltfn IS NULL
 ;

TITLE with QUALIFY

Input

REPLACE VIEW ${STG_VIEW}.LP06_BMCLIINFP${v_Table_Suffix_Inc}
(
  CLICLINBR
, CLICHNNAM
, CLICHNSHO
, CLICLIMNE
, CLIBNKCOD
)
AS
LOCKING ${STG_DATA}.LP06_BMCLIINFP${v_Table_Suffix_Inc} FOR ACCESS
SELECT
  CLICLINBR (title '    VARCHAR(20)')
, CLICHNNAM (title '        VARCHAR(200)')
, CLICHNSHO (title '        VARCHAR(20)')
, CLICLIMNE (title '      VARCHAR(10)')
, CLIBNKCOD (title '       VARCHAR(11)')
FROM
  ${STG_DATA}.LP06_BMCLIINFP${v_Table_Suffix_Inc} s1
QUALIFY
    ROW_NUMBER() OVER(PARTITION BY  CLICLINBR ORDER BY CLICLINBR  ) = 1
;

Output

CREATE OR REPLACE VIEW ${STG_VIEW}.LP06_BMCLIINFP${v_Table_Suffix_Inc}
(
  CLICLINBR
, CLICHNNAM
, CLICHNSHO
, CLICLIMNE
, CLIBNKCOD
)
AS
/* LOCKING ${STG_DATA}.LP06_BMCLIINFP${v_Table_Suffix_Inc} FOR ACCESS */
SELECT CLICLINBR
        , CLICHNNAM
       , CLICHNSHO
       , CLICLIMNE
      , CLIBNKCOD
 FROM (
           SELECT
                          CLICLINBR /* (title '    VARCHAR(20)') */
                        , CLICHNNAM /* (title '        VARCHAR(200)') */
                       , CLICHNSHO /* (title '        VARCHAR(20)') */
                       , CLICLIMNE /* (title '      VARCHAR(10)') */
                       , CLIBNKCOD /* (title '       VARCHAR(11)') */
                       , ROW_NUMBER() OVER(PARTITION BY  CLICLINBR ORDER BY CLICLINBR  ) AS ROWNUM1
FROM
  ${STG_DATA}.LP06_BMCLIINFP${v_Table_Suffix_Inc} s1 ) Q1
WHERE Q1.ROWNUM1 = 1
;

ALIAS

ALIAS is supported by all databases. In Teradata, an ALIAS can be referred in SELECT and WHERE clauses of the same statement where the alias is defined. Since ALIAS is not supported in SELECT and WHERE clauses in the target, it is replaced by the defined value/expression.

The comparison operators LT, LE, GT, GE, EQ, and NE must not be used as TABLE alias or COLUMN alias.

Tools support ALIAS names for columns. If the ALIAS name is same as the column name, then it should be specified for that column only and not for other columns in that table. In the following example, there is a conflict between DATA_DT column name and the DATA_DT alias. This is not supported by the tool.

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SELECT DATA_DT,DATA_INT AS DATA_DT FROM KK WHERE DATA_DT=DATE;

Input: ALIAS

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SELECT
          expression1 (
               TITLE 'Expression 1'
          ) AS alias1
          ,CASE
               WHEN alias1 + Cx >= z
               THEN 1
               ELSE 0
          END AS alias2
     FROM
          tab1
     WHERE
          alias1 = y
;

Output: tdMigrateALIAS = FALSE

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SELECT
          expression1 AS alias1
          ,CASE
               WHEN alias1 + Cx >= z
               THEN 1
               ELSE 0
          END AS alias2
     FROM
          tab1
     WHERE
          alias1 = y
;

Output: tdMigrateALIAS = TRUE

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SELECT
          expression1 AS alias1
          ,CASE
               WHEN expression1 + Cx >= z
               THEN 1
               ELSE 0
          END AS alias2
     FROM
          tab1
     WHERE
          expression1 = y
;

FORMAT and CAST

In Teradata, the FORMAT keyword is used for formatting a column/expression. For example, FORMAT '9(n)' and 'z(n)' are addressed using LPAD with 0 and space (' ') respectively.

Data typing is done using CAST or direct data type [like (expression1)(CHAR(n))]. This feature is addressed using CAST. For details, see Type Casting and Formatting.

Input: FORMAT with CAST 
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SELECT
          CAST(TRIM( Agt_Num ) AS DECIMAL( 5 ,0 ) FORMAT '9(5)' )
     FROM
          C03_AGENT_BOND
;

SELECT
          CAST(CAST( Agt_Num AS INT FORMAT 'Z(17)' ) AS CHAR( 5 ) )
     FROM         
          C03_AGENT_BOND
;

SELECT
          CHAR(CAST( CAST( CND_VLU AS DECIMAL( 17 ,0 ) FORMAT 'Z(17)' ) AS VARCHAR( 17 ) ) )
     FROM
          C03_AGENT_BOND
;

Output

SELECT
          LPAD( CAST( TRIM( Agt_Num ) AS DECIMAL( 5 ,0 ) ) ,5 ,'0' ) AS Agt_Num
     FROM
          C03_AGENT_BOND
;
SELECT
CAST(CAST( Agt_Num AS INT FORMAT 'Z(17)' ) AS CHAR( 5 ) )
FROM
C03_AGENT_BOND
;

SELECT
          LENGTH( CAST( LPAD( CAST( CND_VLU AS DECIMAL( 17 ,0 ) ) ,17 ,' ' ) AS VARCHAR( 17 ) ) ) AS CND_VLU
     FROM
          C03_AGENT_BOND
;

Input - FORMAT 'Z(n)9'

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SELECT
          standard_price (FORMAT 'Z(5)9') (CHAR( 6 ))
          ,max_price (FORMAT 'ZZZZZ9') (CHAR( 6 ))
     FROM
          product_t
;

Output

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SELECT
          CAST( TO_CHAR( standard_price ,'999990' ) AS CHAR( 6 ) ) AS standard_price
          ,CAST( TO_CHAR( max_price ,'999990' ) AS CHAR( 6 ) ) AS max_price
     FROM
          product_t
;

Input - FORMAT 'z(m)9.9(n)'

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SELECT
          standard_price (FORMAT 'Z(6)9.9(2)') (CHAR( 6 ))
     FROM
          product_t
;

Output

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SELECT
          CAST( TO_CHAR( standard_price ,'9999990.00' ) AS CHAR( 6 ) ) AS standard_price
     FROM
          product_t
;

Input - CAST AS INTEGER

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SELECT
          CAST( standard_price AS INTEGER )
     FROM
          product_t
;

Output

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SELECT
         (standard_price)
     FROM
          product_t
;

Input - CAST AS INTEGER FORMAT

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SELECT
          CAST( price11 AS INTEGER FORMAT 'Z(4)9' ) (
               CHAR( 10 )
          )
     FROM
          product_t
;

Output

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SELECT
          CAST( TO_CHAR(  ( price11 ) ,'99990' ) AS CHAR( 10 ) ) AS price11
     FROM
          product_t
;

The following Gauss function is added to convert to integer:

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CREATE OR REPLACE FUNCTION 
/*  This function is used to support "CAST AS INTEGER" of Teradata.
    It should be created in the "mig_td_ext" schema.
*/
     ( i_param                            TEXT )
RETURN INTEGER
AS
  v_castasint    INTEGER;
BEGIN

   v_castasint := CASE WHEN i_param IS NULL 
                                                THEN NULL         -- if NULL value is provided as input
                                                                WHEN TRIM(i_param) IS NULL 
                                                                                THEN 0                  -- if empty string with one or more spaces is provided 
                                                                ELSE TRUNC(CAST(i_param AS NUMBER))            -- if any numeric value is provided
                                END;

RETURN v_castasint;
END;

Short Keys Migration

Table 1 lists the Teradata short keys supported by GaussDB(DWS) and their equivalent syntax in GaussDB(DWS).

Table 1 List of short keys

Teradata Short Key

Equivalent Syntax in GaussDB(DWS)

SEL

SELECT

INS

INSERT

UPD

UPDATE

DEL

DELETE

CT

CREATE TABLE

CV

CREATE VIEW

BT

START TRANSACTION

ET

COMMIT

Input - BT

BT;
--              
delete from ${BRTL_DCOR}.BRTL_CS_CUST_CID_UID_REL 
where DW_Job_Seq = ${v_Group_No};

.if ERRORCODE <> 0 then .quit 12;

--     
insert into ${BRTL_DCOR}.BRTL_CS_CUST_CID_UID_REL 
(
   Cust_Id
  ,Cust_UID
  ,DW_Upd_Dt
  ,DW_Upd_Tm
  ,DW_Job_Seq
  ,DW_Etl_Dt
)
select
   a.Cust_Id
  ,a.Cust_UID
  ,current_date as Dw_Upd_Dt
  ,current_time(0) as DW_Upd_Tm
  ,cast(${v_Group_No} as byteint) as DW_Job_Seq
  ,cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd') as DW_Etl_Dt
from ${BRTL_VCOR}.BRTL_CS_CUST_CID_UID_REL_S a
where a.DW_Snsh_Dt = cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd');

.if ERRORCODE <> 0 then .quit 12;

ET;cd ..

Output

BEGIN
--    
   BEGIN          
      delete from ${BRTL_DCOR}.BRTL_CS_CUST_CID_UID_REL  
       where DW_Job_Seq = ${v_Group_No};
         lv_mig_errorcode = 0;
   EXCEPTION
      WHEN OTHERS THEN
         lv_mig_errorcode = -1;
   END;

   IF lv_mig_errorcode <> 0 THEN
        RAISE EXCEPTION '12';
   END IF;

--     
   BEGIN
        insert into ${BRTL_DCOR}.BRTL_CS_CUST_CID_UID_REL 
        (
          Cust_Id
         ,Cust_UID
         ,DW_Upd_Dt
         ,DW_Upd_Tm
         ,DW_Job_Seq
         ,DW_Etl_Dt
       )
      select
          a.Cust_Id
         ,a.Cust_UID
         ,current_date as Dw_Upd_Dt
         ,current_time(0) as DW_Upd_Tm
         ,cast(${v_Group_No} as byteint) as DW_Job_Seq
         ,cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd') as DW_Etl_Dt
       from ${BRTL_VCOR}.BRTL_CS_CUST_CID_UID_REL_S a
     where a.DW_Snsh_Dt = cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd');
   EXCEPTION
      WHEN OTHERS THEN
         lv_mig_errorcode = -1;
   END;

   IF lv_mig_errorcode <> 0 THEN
        RAISE EXCEPTION '12';
   END IF;

END;

Object Names Starting with $

This section describes the migration of object names starting with $.

The migration behavior for object names starting with $ is explained in the following table. Use the tdMigrateDollar configuration parameter to configure the behavior.

For details, see: IN / NOT IN conversion

Table 2 Migration of object names starting with $

tdMigrateDollar Setting

Object Name

Migrated to

true

$V_SQL

Static object name starting with $

"$V_SQL"

true

${V_SQL}

Dynamic object name starting with $

${V_SQL}

No change: Dynamic object names not supported

false

$V_SQL

Static object name starting with $

$V_SQL

No change: Configuration parameter is set to false.

false

${V_SQL}

Dynamic object name starting with $

${V_SQL}

No change: Configuration parameter is set to false.

Any variable starting with $ is considered as a Value. The tool will migrate this by adding ARRAY.

Input - OBJECT STARTING WITH $ 
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SELECT $C1 from p11 where $C1 NOT LIKE ANY ($sql1);

Output (tdMigrateDollar to TRUE)

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SELECT
        "$C1"
FROM
        p11
WHERE
        "$C1" NOT LIKE ANY (
        ARRAY[ "$sql1" ]
        )
;

Output (tdMigrateDollar to FALSE)

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SELECT
        $C1
FROM
        p11
WHERE
        $C1 NOT LIKE ANY (
        ARRAY[ $sql1 ]
        )
;
Input - Value starting with $ in LIKEALL/LIKE ANY 
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SELECT * FROM T1
WHERE T1.Event_Dt>=ADD_MONTHS(CAST('${OUT_DATE}' AS DATE FORMAT 'YYYYMMDD')+1,(-1)*CAST(T7.Tm_Range_Month AS INTEGER)) 
   AND T1.Event_Dt<=CAST('${OUT_DATE}' AS DATE FORMAT 'YYYYMMDD')
   AND T1.Cntpty_Acct_Name NOT LIKE ALL ( SELECT Tx_Cntpty_Name_Key FROM TEMP_NAME )
   AND T1.Cntpty_Acct_Name NOT LIKE ANY ( SELECT Tx_Cntpty_Name_Key FROM TEMP_NAME )
   AND T1.Cntpty_Acct_Name LIKE ALL ( SELECT Tx_Cntpty_Name_Key FROM TEMP_NAME )
   AND T1.Cntpty_Acct_Name LIKE ANY ( SELECT Tx_Cntpty_Name_Key FROM TEMP_NAME )
   AND T1.Col1 NOT LIKE ANY ($sql1)
   AND T1.Col1 NOT LIKE ALL ($sql1)
   AND T1.Col1 LIKE ANY ($sql1)
   AND T1.Col1 LIKE ALL ($sql1);

Output

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SELECT
          *
     FROM
          T1
     WHERE
          T1.Event_Dt >= ADD_MONTHS (CAST( '${OUT_DATE}' AS DATE ) + 1 ,(- 1 ) * CAST( T7.Tm_Range_Month AS INTEGER ))
          AND T1.Event_Dt <= CAST( '${OUT_DATE}' AS DATE )
          AND T1.Cntpty_Acct_Name NOT LIKE ALL (
               SELECT
                         Tx_Cntpty_Name_Key
                    FROM
                         TEMP_NAME
          )
          AND T1.Cntpty_Acct_Name NOT LIKE ANY (
               SELECT
                         Tx_Cntpty_Name_Key
                    FROM
                         TEMP_NAME
          )
          AND T1.Cntpty_Acct_Name LIKE ALL (
               SELECT
                         Tx_Cntpty_Name_Key
                    FROM
                         TEMP_NAME
          )
          AND T1.Cntpty_Acct_Name LIKE ANY (
               SELECT
                         Tx_Cntpty_Name_Key
                    FROM
                         TEMP_NAME
          )
          AND T1.Col1 NOT LIKE ANY (
               ARRAY[ "$sql1" ]
          )
          AND T1.Col1 NOT LIKE ALL (
               ARRAY[ "$sql1" ]
          )
          AND T1.Col1 LIKE ANY (
               ARRAY[ "$sql1" ]
          )
          AND T1.Col1 LIKE ALL (
               ARRAY[ "$sql1" ]
          )
;

QUALIFY, CASE, and ORDER BY

Input

select 
   a.Cust_UID as Cust_UID          /*   UID */
  ,a.Rtl_Usr_Id as Ini_CM          /*        */
  ,a.Cntr_Aprv_Dt as Aprv_Pass_Tm          /*        */
  ,a.Blg_Org_Id as CM_BRN_Nbr          /*         */
  ,a.Mng_Chg_Typ_Cd  as MNG_CHG_TYP_CD          /*          */
  ,case when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'PMD' and a.Pst_Id in ('PB0101','PB0104') then 'Y' ----        ,        
       when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DEVPMD' and a.Pst_Id ='PB0106'  then 'Y' ----            
       when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DMD' and a.Pst_Id in ('PB0201','PB0204') then 'Y' ----        ,        
      when a.Blg_Org_Id = b.BRN_Org_Id and a.Mng_Chg_Typ_Cd= 'DEVDMD' and a.Pst_Id ='PB0109'  then 'Y' ----            ,
       else ''
end  as Pst_Flg          /*      */
  ,a.Pst_Id as Pst_Id          /*      */
  ,a.BBK_Org_Id  as BBK_Org_Id          /*        */
from VT_CUID_MND_NMN_CHG_INF as a          /* VT_         */
LEFT OUTER JOIN ${BRTL_VCOR}.BRTL_EM_USR_PST_REL_INF_S as b          /* EM_           */
  on  a.Rtl_Usr_Id = b.Rtl_Usr_Id          
  AND a.Blg_Org_Id  = b.BRN_Org_Id           
  AND a.Pst_Id = b.Pst_Id          
  AND b.Sys_Id = 'privatebanking'           
  AND b.pst_sts IN ('1','0','-2') /*     1   -2   0  */          
  AND b.DW_Snsh_Dt =  cast('${v_Trx_Dt}' as date format 'yyyy-mm-dd')          
qualify   row_number() over(partition by a.Cust_UID,a.bbk_org_id order by 
case when ( a.Mng_Chg_Typ_Cd= 'PMD'    and   a.Pst_Id in ('PB0101','PB0104')) or ( a.Mng_Chg_Typ_Cd= 'DEVPMD'    and   a.Pst_Id ='PB0106')   
then 0 when  (a.Mng_Chg_Typ_Cd= 'DMD' and a.Pst_Id in ('PB0201','PB0204')) or    (a.Mng_Chg_Typ_Cd= 'DEVDMD' and a.Pst_Id ='PB0109 ')   then 0 else 1 end  asc )  = 1         
;

Output

 SELECT
                     Cust_UID AS Cust_UID /*   UID */
                     ,Ini_CM /*        */
                     ,Aprv_Pass_Tm /*        */
                     ,CM_BRN_Nbr /*         */
                     ,MNG_CHG_TYP_CD /*          */
                     ,Pst_Flg /*      */
                     ,Pst_Id AS Pst_Id /*      */
                     ,BBK_Org_Id AS BBK_Org_Id /*        */
                FROM
                     ( SELECT
                          a.Cust_UID AS Cust_UID /*   UID */
                          ,a.Rtl_Usr_Id AS Ini_CM /*        */
                          ,a.Cntr_Aprv_Dt AS Aprv_Pass_Tm /*        */
                          ,a.Blg_Org_Id AS CM_BRN_Nbr /*         */
                          ,a.Mng_Chg_Typ_Cd AS MNG_CHG_TYP_CD /*          */
                          ,CASE WHEN a.Blg_Org_Id = b.BRN_Org_Id AND a.Mng_Chg_Typ_Cd = 'PMD' AND a.Pst_Id IN ( 'PB0101' ,'PB0104' )
                                    THEN 'Y' /*         , */
                               WHEN a.Blg_Org_Id = b.BRN_Org_Id AND a.Mng_Chg_Typ_Cd = 'DEVPMD' AND a.Pst_Id = 'PB0106'
                                    THEN 'Y' /*  */
                               WHEN a.Blg_Org_Id = b.BRN_Org_Id AND a.Mng_Chg_Typ_Cd = 'DMD' AND a.Pst_Id IN ( 'PB0201' ,'PB0204' )
                                    THEN 'Y' /*         , */
                               WHEN a.Blg_Org_Id = b.BRN_Org_Id AND a.Mng_Chg_Typ_Cd = 'DEVDMD' AND a.Pst_Id = 'PB0109'
                                    THEN 'Y' /*             , */
                          ELSE
                               ''
                          END AS Pst_Flg /*      */
                          ,a.Pst_Id AS Pst_Id /*      */
                          ,a.BBK_Org_Id AS BBK_Org_Id /*        */
                          ,row_number( ) over( partition BY a.Cust_UID
                          ,a.bbk_org_id
                     ORDER BY
                          CASE WHEN( a.Mng_Chg_Typ_Cd = 'PMD' AND Q1.Pst_Id IN ( 'PB0101' ,'PB0104' ) ) OR( Q1.Mng_Chg_Typ_Cd = 'DEVPMD' AND a.Pst_Id = 'PB0106' )
                                    THEN 0
                               WHEN( a.Mng_Chg_Typ_Cd = 'DMD' AND Q1.Pst_Id IN ( 'PB0201' ,'PB0204' ) ) OR( Q1.Mng_Chg_Typ_Cd = 'DEVDMD' AND a.Pst_Id = 'PB0109 ' )
                                    THEN 0
                          ELSE
                               1
                          END ASC ) AS ROW_NUM1
                     FROM
                          VT_CUID_MND_NMN_CHG_INF AS a /* VT_         */
                          LEFT OUTER JOIN BRTL_VCOR.BRTL_EM_USR_PST_REL_INF_S AS b /* EM_           */
                               ON a.Rtl_Usr_Id = b.Rtl_Usr_Id
                          AND a.Blg_Org_Id = b.BRN_Org_Id
                          AND a.Pst_Id = b.Pst_Id
                          AND b.Sys_Id = 'privatebanking'
                          AND b.pst_sts IN ( '1' ,'0' ,'-2' ) /*     1   -2   0  */
                          AND b.DW_Snsh_Dt = CAST( lv_mig_v_Trx_Dt AS DATE ) ) Q1
                     WHERE
                          Q1.ROW_NUM1 = 1 ;