ABAP Select data from SAP table /SAPHT/DRMHEAD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPHT/DRMHEAD 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 /SAPHT/DRMHEAD. 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 /SAPHT/DRMHEAD 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_/SAPHT/DRMHEAD TYPE STANDARD TABLE OF /SAPHT/DRMHEAD,
      WA_/SAPHT/DRMHEAD TYPE /SAPHT/DRMHEAD,
      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: </SAPHT/DRMHEAD> TYPE /SAPHT/DRMHEAD.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPHT/DRMHEAD
  INTO TABLE IT_/SAPHT/DRMHEAD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPHT/DRMHEAD
*  INTO TABLE @DATA(IT_/SAPHT/DRMHEAD2).
*--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_/SAPHT/DRMHEAD INDEX 1 INTO DATA(WA_/SAPHT/DRMHEAD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPHT/DRMHEAD ASSIGNING </SAPHT/DRMHEAD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPHT/DRMHEAD>-MANDT = 1.
</SAPHT/DRMHEAD>-LOTNO = 1.
</SAPHT/DRMHEAD>-DELETE_FLAG = 1.
</SAPHT/DRMHEAD>-MSBOOKPARTNO = 1.
</SAPHT/DRMHEAD>-MATERIAL = 1.

ENDLOOP.

LOOP AT IT_/SAPHT/DRMHEAD INTO WA_/SAPHT/DRMHEAD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPHT/DRMHEAD-TRACK_PARTNER, sy-vline,
  WA_/SAPHT/DRMHEAD-PARTNER, sy-vline,
  WA_/SAPHT/DRMHEAD-LOTTYPE, sy-vline,
  WA_/SAPHT/DRMHEAD-END_CUST, sy-vline,
  WA_/SAPHT/DRMHEAD-PLANT, sy-vline,
  WA_/SAPHT/DRMHEAD-SALES_ORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPHT/DRMHEAD 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_/SAPHT/DRMHEAD 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_/SAPHT/DRMHEAD INTO WA_/SAPHT/DRMHEAD.


*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 LOTNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPHT/DRMHEAD-LOTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPHT/DRMHEAD-LOTNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MSBOOKPARTNO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPHT/DRMHEAD-MSBOOKPARTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPHT/DRMHEAD-MSBOOKPARTNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPHT/DRMHEAD-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPHT/DRMHEAD-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REF_ASMB_SLSORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPHT/DRMHEAD-REF_ASMB_SLSORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPHT/DRMHEAD-REF_ASMB_SLSORD.
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_/SAPHT/DRMHEAD_STR, 
MANDT TYPE STRING,
LOTNO TYPE STRING,
DELETE_FLAG TYPE STRING,
MSBOOKPARTNO TYPE STRING,
MATERIAL TYPE STRING,
TRACK_PARTNER TYPE STRING,
PARTNER TYPE STRING,
LOTTYPE TYPE STRING,
END_CUST TYPE STRING,
PLANT TYPE STRING,
SALES_ORG TYPE STRING,
DIST_CHNL TYPE STRING,
DIVISION TYPE STRING,
PURCH_ORG TYPE STRING,
BUCKETTYPE TYPE STRING,
MS_DR_IND TYPE STRING,
ASSEMBLY_IND TYPE STRING,
MATDOCQTY TYPE STRING,
INVOICQTY TYPE STRING,
DRAVLQTY TYPE STRING,
DRSTQTY TYPE STRING,
PRISSQTY TYPE STRING,
ECRETQTY TYPE STRING,
MSRETQTY TYPE STRING,
DSSELLINQTY TYPE STRING,
QTY_UNIT TYPE STRING,
ALT_UOM TYPE STRING,
QTY_NUMER TYPE STRING,
QTY_DENOM TYPE STRING,
PRIC_UNIT TYPE STRING,
COND_RATE TYPE STRING,
COND_CURR TYPE STRING,
COND_NUMER TYPE STRING,
COND_DENOM TYPE STRING,
COND_UOM TYPE STRING,
LAST_SELLIN_DT TYPE STRING,
PPTYPE TYPE STRING,
LASTAUDITNO TYPE STRING,
PP_STATUS TYPE STRING,
REF_ASMB_PRODORD TYPE STRING,
REF_ASMB_SLSORD TYPE STRING,
REF_ASMB_SLSITM TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_DT TYPE STRING,
CREATED_TM TYPE STRING,
LASTCHGDBY TYPE STRING,
LASTCHGDDT TYPE STRING,
CHANGED_TM TYPE STRING,
DUMMY_1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPHT/DRMHEAD_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_/SAPHT/DRMHEAD_STR-MANDT sy-vline 
WA_/SAPHT/DRMHEAD_STR-LOTNO sy-vline 
WA_/SAPHT/DRMHEAD_STR-DELETE_FLAG sy-vline 
WA_/SAPHT/DRMHEAD_STR-MSBOOKPARTNO sy-vline 
WA_/SAPHT/DRMHEAD_STR-MATERIAL sy-vline 
WA_/SAPHT/DRMHEAD_STR-TRACK_PARTNER sy-vline 
WA_/SAPHT/DRMHEAD_STR-PARTNER sy-vline 
WA_/SAPHT/DRMHEAD_STR-LOTTYPE sy-vline 
WA_/SAPHT/DRMHEAD_STR-END_CUST sy-vline 
WA_/SAPHT/DRMHEAD_STR-PLANT sy-vline 
WA_/SAPHT/DRMHEAD_STR-SALES_ORG sy-vline 
WA_/SAPHT/DRMHEAD_STR-DIST_CHNL sy-vline 
WA_/SAPHT/DRMHEAD_STR-DIVISION sy-vline 
WA_/SAPHT/DRMHEAD_STR-PURCH_ORG sy-vline 
WA_/SAPHT/DRMHEAD_STR-BUCKETTYPE sy-vline 
WA_/SAPHT/DRMHEAD_STR-MS_DR_IND sy-vline 
WA_/SAPHT/DRMHEAD_STR-ASSEMBLY_IND sy-vline 
WA_/SAPHT/DRMHEAD_STR-MATDOCQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-INVOICQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-DRAVLQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-DRSTQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-PRISSQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-ECRETQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-MSRETQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-DSSELLINQTY sy-vline 
WA_/SAPHT/DRMHEAD_STR-QTY_UNIT sy-vline 
WA_/SAPHT/DRMHEAD_STR-ALT_UOM sy-vline 
WA_/SAPHT/DRMHEAD_STR-QTY_NUMER sy-vline 
WA_/SAPHT/DRMHEAD_STR-QTY_DENOM sy-vline 
WA_/SAPHT/DRMHEAD_STR-PRIC_UNIT sy-vline 
WA_/SAPHT/DRMHEAD_STR-COND_RATE sy-vline 
WA_/SAPHT/DRMHEAD_STR-COND_CURR sy-vline 
WA_/SAPHT/DRMHEAD_STR-COND_NUMER sy-vline 
WA_/SAPHT/DRMHEAD_STR-COND_DENOM sy-vline 
WA_/SAPHT/DRMHEAD_STR-COND_UOM sy-vline 
WA_/SAPHT/DRMHEAD_STR-LAST_SELLIN_DT sy-vline 
WA_/SAPHT/DRMHEAD_STR-PPTYPE sy-vline 
WA_/SAPHT/DRMHEAD_STR-LASTAUDITNO sy-vline 
WA_/SAPHT/DRMHEAD_STR-PP_STATUS sy-vline 
WA_/SAPHT/DRMHEAD_STR-REF_ASMB_PRODORD sy-vline 
WA_/SAPHT/DRMHEAD_STR-REF_ASMB_SLSORD sy-vline 
WA_/SAPHT/DRMHEAD_STR-REF_ASMB_SLSITM sy-vline 
WA_/SAPHT/DRMHEAD_STR-CREATED_BY sy-vline 
WA_/SAPHT/DRMHEAD_STR-CREATED_DT sy-vline 
WA_/SAPHT/DRMHEAD_STR-CREATED_TM sy-vline 
WA_/SAPHT/DRMHEAD_STR-LASTCHGDBY sy-vline 
WA_/SAPHT/DRMHEAD_STR-LASTCHGDDT sy-vline 
WA_/SAPHT/DRMHEAD_STR-CHANGED_TM sy-vline 
WA_/SAPHT/DRMHEAD_STR-DUMMY_1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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