ABAP Select data from SAP table EAPLB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAPLB
*  INTO TABLE @DATA(IT_EAPLB2).
*--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_EAPLB INDEX 1 INTO DATA(WA_EAPLB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAPLB>-FLG_SEL = 1.
<EAPLB>-MANDT = 1.
<EAPLB>-EQUNR = 1.
<EAPLB>-PLNTY = 1.
<EAPLB>-PLNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAPLB-PLNAL, sy-vline,
  WA_EAPLB-ZKRIZ, sy-vline,
  WA_EAPLB-ZAEHL, sy-vline,
  WA_EAPLB-DATUV, sy-vline,
  WA_EAPLB-TECHV, sy-vline,
  WA_EAPLB-LOEKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAPLB 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_EAPLB 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_EAPLB INTO WA_EAPLB.


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

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

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

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

*Conversion exit ALPHA, internal->external for field AENNR_AUS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAPLB-AENNR_AUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAPLB-AENNR_AUS.
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_EAPLB_STR, 
FLG_SEL TYPE STRING,
MANDT TYPE STRING,
EQUNR TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZKRIZ TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
AENNR TYPE STRING,
SWERK TYPE STRING,
IWERK TYPE STRING,
PLNVW TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VBKZ TYPE STRING,
DATUB TYPE STRING,
AENNR_AUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAPLB_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_EAPLB_STR-FLG_SEL sy-vline 
WA_EAPLB_STR-MANDT sy-vline 
WA_EAPLB_STR-EQUNR sy-vline 
WA_EAPLB_STR-PLNTY sy-vline 
WA_EAPLB_STR-PLNNR sy-vline 
WA_EAPLB_STR-PLNAL sy-vline 
WA_EAPLB_STR-ZKRIZ sy-vline 
WA_EAPLB_STR-ZAEHL sy-vline 
WA_EAPLB_STR-DATUV sy-vline 
WA_EAPLB_STR-TECHV sy-vline 
WA_EAPLB_STR-LOEKZ sy-vline 
WA_EAPLB_STR-PARKZ sy-vline 
WA_EAPLB_STR-AENNR sy-vline 
WA_EAPLB_STR-SWERK sy-vline 
WA_EAPLB_STR-IWERK sy-vline 
WA_EAPLB_STR-PLNVW sy-vline 
WA_EAPLB_STR-ANDAT sy-vline 
WA_EAPLB_STR-ANNAM sy-vline 
WA_EAPLB_STR-AEDAT sy-vline 
WA_EAPLB_STR-AENAM sy-vline 
WA_EAPLB_STR-VBKZ sy-vline 
WA_EAPLB_STR-DATUB sy-vline 
WA_EAPLB_STR-AENNR_AUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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