How to Split Timestamps into Date and Time in SAP BW/4HANA Using AMDP Code

Timestamps are data elements that represent a specific point in time, such as 2021-01-31 23:59:59. Timestamps are often used in SAP BW/4HANA to track the changes and events in business data, such as sales orders, invoices, deliveries, etc. Timestamps can also be used for analytical purposes, such as calculating durations, intervals, aggregations, etc.

However, sometimes you may need to split timestamps into date and time components for your reporting or transformation needs. For example, you may want to group or filter your data by date or time, or you may want to join your data with other sources that have separate date and time fields.

In this blog post, we will show you how to split timestamps into date and time in SAP BW/4HANA data loads using AMDP code. AMDP stands for ABAP Managed Database Procedures, which are database procedures written in ABAP and executed on the SAP HANA database. AMDP code can help you process and transform data faster and more efficiently than ABAP code.

Why Use AMDP Code for Splitting Timestamps?

There are several reasons why you may want to use AMDP code for splitting timestamps into date and time in SAP BW/4HANA data loads:

AMDP code can run directly on the SAP HANA database, which means it can leverage the parallel processing and in-memory capabilities of SAP HANA. This can improve the performance and scalability of your data loads.
AMDP code can access and manipulate data from different sources and targets, such as tables, views, InfoObjects, etc. This can give you more flexibility and control over your data transformations.
AMDP code can use SQLScript, which is a scripting language for SAP HANA that supports advanced features such as functions, expressions, conversions, etc. This can make your code more readable and maintainable.

How to Use AMDP Code for Splitting Timestamps?

To use AMDP code for splitting timestamps into date and time in SAP BW/4HANA data loads, you need to follow these steps:

Create an AMDP class and method that contains the logic for splitting timestamps. You can use the example code below as a reference. The code uses the TO_DATE and TO_TIME functions to convert a timestamp value into a date value and a time value respectively. It also checks if the input value is valid and returns an initial value if not.

class zcl_timestamp_split_01 definition   public   final   create public .
  public section.
  interfaces if_amdp_marker_hdb.
  CLASS-methods TIMESTAMP_SPLIT importing VALUE (IV_VALUE) TYPE timestamp   exporting VALUE (EV_DATE) TYPE dats   VALUE (EV_TIME) TYPE tims.
  protected section.
  private section.
endclass.

class zcl_timestamp_split_01 implementation.
  method TIMESTAMP_SPLIT by database procedure   for hdb   language sqlscript.
    declare lv_date date;
    declare lv_time time;
    -- If the input value is not initial
    IF :IV_VALUE IS NOT NULL then
      -- Try to convert the input value into a date and a time
      BEGIN
        lv_date := TO_DATE(:IV_VALUE);
        lv_time := TO_TIME(:IV_VALUE);
      EXCEPTION
        -- If the conversion fails, return an initial value
        EV_DATE := NULL;
        EV_TIME := NULL;
        RETURN;
      END;
      -- Assign the output values
      EV_DATE := :lv_date;
      EV_TIME := :lv_time;
    -- If the input value is initial
    ELSE
      -- Return an initial value
      EV_DATE := NULL;
      EV_TIME := NULL;
    END IF;
  endmethod.
endclass.

class zcl_timestamp_split_01 definition public final create public .

public section.

interfaces if_amdp_marker_hdb.

CLASS-methods TIMESTAMP_SPLIT importing VALUE (IV_VALUE) TYPE timestamp exporting VALUE (EV_DATE) TYPE dats VALUE (EV_TIME) TYPE tims.

protected section.

private section.

endclass.

class zcl_timestamp_split_01 implementation.

method TIMESTAMP_SPLIT by database procedure for hdb language sqlscript.

declare lv_date date;

declare lv_time time;

-- If the input value is not initial

IF :IV_VALUE IS NOT NULL then

-- Try to convert the input value into a date and a time

BEGIN

lv_date := TO_DATE(:IV_VALUE);

lv_time := TO_TIME(:IV_VALUE);

EXCEPTION

-- If the conversion fails, return an initial value

EV_DATE := NULL;

EV_TIME := NULL;

RETURN;

END;

-- Assign the output values

EV_DATE := :lv_date;

EV_TIME := :lv_time;

-- If the input value is initial

ELSE

-- Return an initial value

EV_DATE := NULL;

EV_TIME := NULL;

END IF;

endmethod.

endclass.

Create a transformation that uses the AMDP class and method for splitting timestamps. You can use the transformation editor in SAP BW/4HANA to create a transformation between your source and target objects. In the transformation, you need to call the AMDP method for each field that contains a timestamp value. You can use the example code below as a reference. The code passes the field value as a parameter to the AMDP method and assigns the output values to the corresponding fields.

METHOD START_ROUTINE.
ENDMETHOD.

METHOD END_ROUTINE.
  DATA: lt_result TYPE STANDARD TABLE OF _ty_s_TG_1,
        ls_result LIKE LINE OF lt_result.
  LOOP AT RESULT_PACKAGE ASSIGNING FIELD-SYMBOL(<fs_result>).
    ls_result = <fs_result>.
    CALL METHOD zcl_timestamp_split_01=>TIMESTAMP_SPLIT
      EXPORTING
        IV_VALUE   = <fs_result>-ZTIMESTAMP
      IMPORTING
        EV_DATE    = ls_result-ZDATE
        EV_TIME    = ls_result-ZTIME.
    APPEND ls_result TO lt_result.
  ENDLOOP.
  CLEAR RESULT_PACKAGE.
  RESULT_PACKAGE[] = lt_result[].
ENDMETHOD.

METHOD START_ROUTINE.

ENDMETHOD.

METHOD END_ROUTINE.

DATA: lt_result TYPE STANDARD TABLE OF _ty_s_TG_1,

ls_result LIKE LINE OF lt_result.

LOOP AT RESULT_PACKAGE ASSIGNING FIELD-SYMBOL().

ls_result = .

CALL METHOD zcl_timestamp_split_01=>TIMESTAMP_SPLIT

EXPORTING

IV_VALUE = -ZTIMESTAMP

IMPORTING

EV_DATE = ls_result-ZDATE

EV_TIME = ls_result-ZTIME.

APPEND ls_result TO lt_result.

ENDLOOP.

CLEAR RESULT_PACKAGE.

RESULT_PACKAGE[] = lt_result[].

ENDMETHOD.

Execute the data load and check the results. You can use the InfoPackage or the Data Transfer Process (DTP) to execute the data load from your source object to your target object. You can also monitor the data load status and logs in SAP BW/4HANA. After the data load is completed, you can check the results in your target object and verify that the timestamps are split into date and time correctly.

Conclusion

In this blog post, we have shown you how to split timestamps into date and time in SAP BW/4HANA data loads using AMDP code. AMDP code can help you improve the performance, flexibility, and readability of your data transformations. We hope you find this blog post useful and informative. If you have any questions or feedback, please feel free to leave a comment below.

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