ABAP Select data from SAP table ALM_ME_TEMPLATE_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ALM_ME_TEMPLATE_HEADER 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 ALM_ME_TEMPLATE_HEADER. 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 ALM_ME_TEMPLATE_HEADER 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_ALM_ME_TEMPLATE_HEADER TYPE STANDARD TABLE OF ALM_ME_TEMPLATE_HEADER,
      WA_ALM_ME_TEMPLATE_HEADER TYPE ALM_ME_TEMPLATE_HEADER,
      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: <ALM_ME_TEMPLATE_HEADER> TYPE ALM_ME_TEMPLATE_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALM_ME_TEMPLATE_HEADER
*  INTO TABLE @DATA(IT_ALM_ME_TEMPLATE_HEADER2).
*--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_ALM_ME_TEMPLATE_HEADER INDEX 1 INTO DATA(WA_ALM_ME_TEMPLATE_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALM_ME_TEMPLATE_HEADER>-EQART = 1.
<ALM_ME_TEMPLATE_HEADER>-LVORM = 1.
<ALM_ME_TEMPLATE_HEADER>-LAGER = 1.
<ALM_ME_TEMPLATE_HEADER>-CHARGE = 1.
<ALM_ME_TEMPLATE_HEADER>-KUNDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALM_ME_TEMPLATE_HEADER-IMRC_POINT, sy-vline,
  WA_ALM_ME_TEMPLATE_HEADER-MAPAR, sy-vline,
  WA_ALM_ME_TEMPLATE_HEADER-SPRAS, sy-vline,
  WA_ALM_ME_TEMPLATE_HEADER-KZLTX, sy-vline,
  WA_ALM_ME_TEMPLATE_HEADER-TPLKZ, sy-vline,
  WA_ALM_ME_TEMPLATE_HEADER-FLTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALM_ME_TEMPLATE_HEADER 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_ALM_ME_TEMPLATE_HEADER 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_ALM_ME_TEMPLATE_HEADER INTO WA_ALM_ME_TEMPLATE_HEADER.


*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 KUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_TEMPLATE_HEADER-KUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_TEMPLATE_HEADER-KUNDE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_TEMPLATE_HEADER-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_TEMPLATE_HEADER-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLMA
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_TEMPLATE_HEADER-TPLMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_TEMPLATE_HEADER-TPLMA.
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_ALM_ME_TEMPLATE_HEADER_STR, 
EQART TYPE STRING,
LVORM TYPE STRING,
LAGER TYPE STRING,
CHARGE TYPE STRING,
KUNDE TYPE STRING,
IMRC_POINT TYPE STRING,
MAPAR TYPE STRING,
SPRAS TYPE STRING,
KZLTX TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
TPLMA TYPE STRING,
TPLMA_DISP TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
CR_OBJTY TYPE STRING,
PPSID TYPE STRING,
PPSIDI TYPE STRING,
GSBER TYPE STRING,
HEQUI_SHTXT TYPE STRING,
TPLNR_SHTXT TYPE STRING,
TPLMA_SHTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALM_ME_TEMPLATE_HEADER_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_ALM_ME_TEMPLATE_HEADER_STR-EQART sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-LVORM sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-LAGER sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-CHARGE sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-KUNDE sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-IMRC_POINT sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-MAPAR sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-SPRAS sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-KZLTX sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-TPLKZ sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-FLTYP sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-TPLMA sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-TPLMA_DISP sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-SWERK sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-STORT sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-MSGRP sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-BEBER sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-CR_OBJTY sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-PPSID sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-PPSIDI sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-GSBER sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-HEQUI_SHTXT sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-TPLNR_SHTXT sy-vline 
WA_ALM_ME_TEMPLATE_HEADER_STR-TPLMA_SHTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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