ABAP Select data from SAP table ALM_ME_FUNCLOC_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_FUNCLOC_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_FUNCLOC_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_FUNCLOC_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_FUNCLOC_HEADER TYPE STANDARD TABLE OF ALM_ME_FUNCLOC_HEADER,
      WA_ALM_ME_FUNCLOC_HEADER TYPE ALM_ME_FUNCLOC_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_FUNCLOC_HEADER> TYPE ALM_ME_FUNCLOC_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALM_ME_FUNCLOC_HEADER
*  INTO TABLE @DATA(IT_ALM_ME_FUNCLOC_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_FUNCLOC_HEADER INDEX 1 INTO DATA(WA_ALM_ME_FUNCLOC_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALM_ME_FUNCLOC_HEADER>-FUNCLOC = 1.
<ALM_ME_FUNCLOC_HEADER>-FUNCT_LOC = 1.
<ALM_ME_FUNCLOC_HEADER>-LABEL_SYST = 1.
<ALM_ME_FUNCLOC_HEADER>-DESCRIPT = 1.
<ALM_ME_FUNCLOC_HEADER>-STRIND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALM_ME_FUNCLOC_HEADER-CATEGORY, sy-vline,
  WA_ALM_ME_FUNCLOC_HEADER-SUPFLOC, sy-vline,
  WA_ALM_ME_FUNCLOC_HEADER-PLANPLANT, sy-vline,
  WA_ALM_ME_FUNCLOC_HEADER-MAINTPLANT, sy-vline,
  WA_ALM_ME_FUNCLOC_HEADER-PLANGROUP, sy-vline,
  WA_ALM_ME_FUNCLOC_HEADER-SORTFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALM_ME_FUNCLOC_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_FUNCLOC_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_FUNCLOC_HEADER INTO WA_ALM_ME_FUNCLOC_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 TPLNR, internal->external for field FUNCLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_FUNCLOC_HEADER-FUNCLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_FUNCLOC_HEADER-FUNCLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field SUPFLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_FUNCLOC_HEADER-SUPFLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_FUNCLOC_HEADER-SUPFLOC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ADDRESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ALM_ME_FUNCLOC_HEADER-ADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ALM_ME_FUNCLOC_HEADER-ADDRESS.
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_FUNCLOC_HEADER_STR, 
FUNCLOC TYPE STRING,
FUNCT_LOC TYPE STRING,
LABEL_SYST TYPE STRING,
DESCRIPT TYPE STRING,
STRIND TYPE STRING,
CATEGORY TYPE STRING,
SUPFLOC TYPE STRING,
PLANPLANT TYPE STRING,
MAINTPLANT TYPE STRING,
PLANGROUP TYPE STRING,
SORTFIELD TYPE STRING,
EQINSTALL TYPE STRING,
EQSINGLE TYPE STRING,
POSNR TYPE STRING,
WORK_CTR TYPE STRING,
MAINTLOC TYPE STRING,
MAINTROOM TYPE STRING,
COSTCENTER TYPE STRING,
ADDRESS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALM_ME_FUNCLOC_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_FUNCLOC_HEADER_STR-FUNCLOC sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-FUNCT_LOC sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-LABEL_SYST sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-DESCRIPT sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-STRIND sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-CATEGORY sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-SUPFLOC sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-PLANPLANT sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-MAINTPLANT sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-PLANGROUP sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-SORTFIELD sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-EQINSTALL sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-EQSINGLE sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-POSNR sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-WORK_CTR sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-MAINTLOC sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-MAINTROOM sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-COSTCENTER sy-vline 
WA_ALM_ME_FUNCLOC_HEADER_STR-ADDRESS sy-vline      INTO ld_text SEPARATED BY SPACE.

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