ABAP Select data from SAP table E3GLAD1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3GLAD1 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 E3GLAD1. 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 E3GLAD1 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_E3GLAD1 TYPE STANDARD TABLE OF E3GLAD1,
      WA_E3GLAD1 TYPE E3GLAD1,
      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: <E3GLAD1> TYPE E3GLAD1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3GLAD1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3GLAD1
  INTO TABLE IT_E3GLAD1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3GLAD1
*  INTO TABLE @DATA(IT_E3GLAD12).
*--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_E3GLAD1 INDEX 1 INTO DATA(WA_E3GLAD12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3GLAD1 ASSIGNING <E3GLAD1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3GLAD1>-VAL001 = 1.
<E3GLAD1>-VAL002 = 1.
<E3GLAD1>-VAL003 = 1.
<E3GLAD1>-VAL004 = 1.
<E3GLAD1>-VAL005 = 1.

ENDLOOP.

LOOP AT IT_E3GLAD1 INTO WA_E3GLAD1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3GLAD1-VAL006, sy-vline,
  WA_E3GLAD1-VAL007, sy-vline,
  WA_E3GLAD1-VAL008, sy-vline,
  WA_E3GLAD1-VAL009, sy-vline,
  WA_E3GLAD1-VAL010, sy-vline,
  WA_E3GLAD1-VAL011, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3GLAD1 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_E3GLAD1 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_E3GLAD1 INTO WA_E3GLAD1.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_E3GLAD1_STR, 
VAL001 TYPE STRING,
VAL002 TYPE STRING,
VAL003 TYPE STRING,
VAL004 TYPE STRING,
VAL005 TYPE STRING,
VAL006 TYPE STRING,
VAL007 TYPE STRING,
VAL008 TYPE STRING,
VAL009 TYPE STRING,
VAL010 TYPE STRING,
VAL011 TYPE STRING,
VAL012 TYPE STRING,
VAL013 TYPE STRING,
VAL014 TYPE STRING,
VAL015 TYPE STRING,
VAL016 TYPE STRING,
VAL017 TYPE STRING,
VAL018 TYPE STRING,
VAL019 TYPE STRING,
VAL020 TYPE STRING,
VAL021 TYPE STRING,
VAL022 TYPE STRING,
VAL023 TYPE STRING,
VAL024 TYPE STRING,
VAL025 TYPE STRING,
VAL026 TYPE STRING,
VAL027 TYPE STRING,
VAL028 TYPE STRING,
VAL029 TYPE STRING,
VAL030 TYPE STRING,
VAL031 TYPE STRING,
VAL032 TYPE STRING,
VAL033 TYPE STRING,
VAL034 TYPE STRING,
VAL035 TYPE STRING,
VAL036 TYPE STRING,
VAL037 TYPE STRING,
VAL038 TYPE STRING,
VAL039 TYPE STRING,
VAL040 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3GLAD1_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_E3GLAD1_STR-VAL001 sy-vline 
WA_E3GLAD1_STR-VAL002 sy-vline 
WA_E3GLAD1_STR-VAL003 sy-vline 
WA_E3GLAD1_STR-VAL004 sy-vline 
WA_E3GLAD1_STR-VAL005 sy-vline 
WA_E3GLAD1_STR-VAL006 sy-vline 
WA_E3GLAD1_STR-VAL007 sy-vline 
WA_E3GLAD1_STR-VAL008 sy-vline 
WA_E3GLAD1_STR-VAL009 sy-vline 
WA_E3GLAD1_STR-VAL010 sy-vline 
WA_E3GLAD1_STR-VAL011 sy-vline 
WA_E3GLAD1_STR-VAL012 sy-vline 
WA_E3GLAD1_STR-VAL013 sy-vline 
WA_E3GLAD1_STR-VAL014 sy-vline 
WA_E3GLAD1_STR-VAL015 sy-vline 
WA_E3GLAD1_STR-VAL016 sy-vline 
WA_E3GLAD1_STR-VAL017 sy-vline 
WA_E3GLAD1_STR-VAL018 sy-vline 
WA_E3GLAD1_STR-VAL019 sy-vline 
WA_E3GLAD1_STR-VAL020 sy-vline 
WA_E3GLAD1_STR-VAL021 sy-vline 
WA_E3GLAD1_STR-VAL022 sy-vline 
WA_E3GLAD1_STR-VAL023 sy-vline 
WA_E3GLAD1_STR-VAL024 sy-vline 
WA_E3GLAD1_STR-VAL025 sy-vline 
WA_E3GLAD1_STR-VAL026 sy-vline 
WA_E3GLAD1_STR-VAL027 sy-vline 
WA_E3GLAD1_STR-VAL028 sy-vline 
WA_E3GLAD1_STR-VAL029 sy-vline 
WA_E3GLAD1_STR-VAL030 sy-vline 
WA_E3GLAD1_STR-VAL031 sy-vline 
WA_E3GLAD1_STR-VAL032 sy-vline 
WA_E3GLAD1_STR-VAL033 sy-vline 
WA_E3GLAD1_STR-VAL034 sy-vline 
WA_E3GLAD1_STR-VAL035 sy-vline 
WA_E3GLAD1_STR-VAL036 sy-vline 
WA_E3GLAD1_STR-VAL037 sy-vline 
WA_E3GLAD1_STR-VAL038 sy-vline 
WA_E3GLAD1_STR-VAL039 sy-vline 
WA_E3GLAD1_STR-VAL040 sy-vline      INTO ld_text SEPARATED BY SPACE.

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