Skip to main content

PQL47 (PQL Function Library - CPM 4.7)

INDEX_ACTIVITY_ORDER_REVERSE

Applies to: CELONIS 4.7

Description

INDEX_ACTIVITY_ORDER_REVERSE returns the reverse position of each activity within a case. Only not null activities are counted.

Syntax
INDEX_ACTIVITY_ORDER_REVERSE ( table.column )
  • column: Column which has to be joinable to the activity table

NULL handling

If a row is NULL, then NULL will also be returned. NULL values do not influence the position of the non-NULL activities.

[1] INDEX_ACTIVITY_ORDER_REVERSE with null values.

Query

Column1

INDEX_ACTIVITY_ORDER_REVERSE ( "Table1"."ACTIVITY" )

Input

Output

Table1

CASE_ID : STRING

ACTIVITY : STRING

TIMESTAMP : DATE

'1'

'A'

Tue Jan 01 2019 13:00:00.000

'1'

'B'

Tue Jan 01 2019 13:01:00.000

'1'

null

Tue Jan 01 2019 13:02:00.000

'2'

'A'

Tue Jan 01 2019 13:03:00.000

'2'

null

Tue Jan 01 2019 13:04:00.000

'3'

'A'

Tue Jan 01 2019 14:00:00.000

'3'

null

Tue Jan 01 2019 14:05:00.000

'3'

'D'

Tue Jan 01 2019 14:10:00.000

'3'

null

Tue Jan 01 2019 14:11:00.000

Result

Column1 : INT

2

1

null

1

null

2

null

1

null

Examples

[2] Example with two cases in which each activity is taken into account.

Query

Column1

INDEX_ACTIVITY_ORDER_REVERSE ( "Table1"."ACTIVITY" )

Input

Output

Table1

CASE_ID : STRING

ACTIVITY : STRING

TIMESTAMP : DATE

'1'

'A'

Tue Jan 01 2019 13:00:00.000

'1'

'B'

Tue Jan 01 2019 13:01:00.000

'1'

'B'

Tue Jan 01 2019 13:02:00.000

'2'

'A'

Tue Jan 01 2019 13:03:00.000

'2'

'B'

Tue Jan 01 2019 13:04:00.000

Result

Column1 : INT

3

2

1

2

1

[3] Example with two cases in which only B values are taken into account.

Query

Column1

INDEX_ACTIVITY_ORDER_REVERSE ( REMAP_VALUES ( "Table1"."ACTIVITY" , [ 'A' , NULL ] ) )

Input

Output

Table1

CASE_ID : STRING

ACTIVITY : STRING

TIMESTAMP : DATE

'1'

'A'

Tue Jan 01 2019 13:00:00.000

'1'

'B'

Tue Jan 01 2019 13:01:00.000

'1'

'B'

Tue Jan 01 2019 13:02:00.000

'2'

'A'

Tue Jan 01 2019 13:03:00.000

'2'

'B'

Tue Jan 01 2019 13:04:00.000

Result

Column1 : INT

null

2

1

null

1

See also: