With a As

(Select 1001 cst_id,

to_date('2014/09/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2014/09/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1001 cst_id,

to_date('2014/09/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2014/09/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1001 cst_id,

to_date('2015/03/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2015/03/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1001 cst_id,

to_date('2015/05/13', 'yyyy-mm-dd') pur_dt,

Null cst_working_flag,

Null cst_working_dt,

1 cst_holiday_flag,

to_date('2015/05/13', 'yyyy-mm-dd') cst_holiday_dt

From dual

Union All

Select 1001 cst_id,

to_date('2015/05/14', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2015/05/14', 'yyyy-mm-dd') cst_working_dt,

1 cst_holiday_flag,

to_date('2015/05/14', 'yyyy-mm-dd') cst_holiday_dt

From dual

Union All

Select 1002 cst_id,

to_date('2014/09/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2014/09/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1002 cst_id,

to_date('2014/09/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2014/09/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1002 cst_id,

to_date('2015/03/29', 'yyyy-mm-dd') pur_dt,

1 cst_working_flag,

to_date('2015/03/29', 'yyyy-mm-dd') cst_working_dt,

Null cst_holiday_flag,

Null cst_holiday_dt

From dual

Union All

Select 1002 cst_id,

to_date('2015/05/13', 'yyyy-mm-dd') pur_dt,

Null cst_working_flag,

Null cst_working_dt,

1 cst_holiday_flag,

to_date('2015/05/13', 'yyyy-mm-dd') cst_holiday_dt

From dual

Union All

Select 1002 cst_id,

to_date('2015/05/14', 'yyyy-mm-dd') pur_dt,

Null cst_working_flag,

Null cst_working_dt,

1 cst_holiday_flag,

to_date('2015/05/14', 'yyyy-mm-dd') cst_holiday_dt

From dual)

Select * From a order by a.cst_id asc ,a.pur_dt asc;

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