SAP MAM_30_CUST_ACTIVITY_TYPE ABAP Select data from SAP table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MAM_30_CUST_ACTIVITY_TYPE table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to MAM_30_CUST_ACTIVITY_TYPE. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the MAM_30_CUST_ACTIVITY_TYPE table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_MAM_30_CUST_ACTIVITY_TYPE TYPE STANDARD TABLE OF MAM_30_CUST_ACTIVITY_TYPE,
      WA_MAM_30_CUST_ACTIVITY_TYPE TYPE MAM_30_CUST_ACTIVITY_TYPE,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <MAM_30_CUST_ACTIVITY_TYPE> TYPE MAM_30_CUST_ACTIVITY_TYPE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MAM_30_CUST_ACTIVITY_TYPE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MAM_30_CUST_ACTIVITY_TYPE
  INTO TABLE IT_MAM_30_CUST_ACTIVITY_TYPE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MAM_30_CUST_ACTIVITY_TYPE
*  INTO TABLE @DATA(IT_MAM_30_CUST_ACTIVITY_TYPE2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_MAM_30_CUST_ACTIVITY_TYPE INDEX 1 INTO DATA(WA_MAM_30_CUST_ACTIVITY_TYPE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MAM_30_CUST_ACTIVITY_TYPE ASSIGNING <MAM_30_CUST_ACTIVITY_TYPE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MAM_30_CUST_ACTIVITY_TYPE>-WORK_CNTR = 1.
<MAM_30_CUST_ACTIVITY_TYPE>-PLANT = 1.
<MAM_30_CUST_ACTIVITY_TYPE>-ACTTYPE = 1.
<MAM_30_CUST_ACTIVITY_TYPE>-ACTTYP_TXT = 1.
<MAM_30_CUST_ACTIVITY_TYPE>-ALLOC_COST_ELEM = 1.

ENDLOOP.

LOOP AT IT_MAM_30_CUST_ACTIVITY_TYPE INTO WA_MAM_30_CUST_ACTIVITY_TYPE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MAM_30_CUST_ACTIVITY_TYPE-ACTIVITY_CAT, sy-vline,
  WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_CAT_ACTUAL, sy-vline,
  WA_MAM_30_CUST_ACTIVITY_TYPE-PRICE_INDICATOR, sy-vline,
  WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_PRICE_IND, sy-vline,
  WA_MAM_30_CUST_ACTIVITY_TYPE-PREDIS_FXD_COST, sy-vline,
  WA_MAM_30_CUST_ACTIVITY_TYPE-MANUAL_ACT_QTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MAM_30_CUST_ACTIVITY_TYPE you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_MAM_30_CUST_ACTIVITY_TYPE TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_MAM_30_CUST_ACTIVITY_TYPE INTO WA_MAM_30_CUST_ACTIVITY_TYPE.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field ALLOC_COST_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-ALLOC_COST_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-ALLOC_COST_ELEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRICE_INDICATOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-PRICE_INDICATOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-PRICE_INDICATOR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACT_PRICE_IND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_PRICE_IND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_PRICE_IND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SWITCH_LAYOUT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-SWITCH_LAYOUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-SWITCH_LAYOUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ACT_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-ACT_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OUTPUT_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MAM_30_CUST_ACTIVITY_TYPE-OUTPUT_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_30_CUST_ACTIVITY_TYPE-OUTPUT_UNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MAM_30_CUST_ACTIVITY_TYPE_STR, 
WORK_CNTR TYPE STRING,
PLANT TYPE STRING,
ACTTYPE TYPE STRING,
ACTTYP_TXT TYPE STRING,
ALLOC_COST_ELEM TYPE STRING,
ACTIVITY_CAT TYPE STRING,
ACT_CAT_ACTUAL TYPE STRING,
PRICE_INDICATOR TYPE STRING,
ACT_PRICE_IND TYPE STRING,
PREDIS_FXD_COST TYPE STRING,
MANUAL_ACT_QTY TYPE STRING,
AVERAGE_PRICE_IND TYPE STRING,
SWITCH_LAYOUT TYPE STRING,
ACT_UNIT TYPE STRING,
ACT_UNIT_ISO TYPE STRING,
OUTPUT_UNIT TYPE STRING,
OUTPUT_UNIT_ISO TYPE STRING,
OUTPUT_FACTOR TYPE STRING,
DIMID TYPE STRING,
DEFAULT_ACTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MAM_30_CUST_ACTIVITY_TYPE_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-WORK_CNTR sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-PLANT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACTTYPE sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACTTYP_TXT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ALLOC_COST_ELEM sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACTIVITY_CAT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACT_CAT_ACTUAL sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-PRICE_INDICATOR sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACT_PRICE_IND sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-PREDIS_FXD_COST sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-MANUAL_ACT_QTY sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-AVERAGE_PRICE_IND sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-SWITCH_LAYOUT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACT_UNIT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-ACT_UNIT_ISO sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-OUTPUT_UNIT sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-OUTPUT_UNIT_ISO sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-OUTPUT_FACTOR sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-DIMID sy-vline 
WA_MAM_30_CUST_ACTIVITY_TYPE_STR-DEFAULT_ACTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.

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