ABAP Select data from SAP table EFG_STR_SELLIST_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFG_STR_SELLIST_ALV
*  INTO TABLE @DATA(IT_EFG_STR_SELLIST_ALV2).
*--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_EFG_STR_SELLIST_ALV INDEX 1 INTO DATA(WA_EFG_STR_SELLIST_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFG_STR_SELLIST_ALV>-LINETYPE = 1.
<EFG_STR_SELLIST_ALV>-SELECTED = 1.
<EFG_STR_SELLIST_ALV>-NO_SELECT = 1.
<EFG_STR_SELLIST_ALV>-BOX_INVSBL = 1.
<EFG_STR_SELLIST_ALV>-TYPECOLOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFG_STR_SELLIST_ALV-TYPEINTSV, sy-vline,
  WA_EFG_STR_SELLIST_ALV-TYPETEXT, sy-vline,
  WA_EFG_STR_SELLIST_ALV-KEYCOLOR, sy-vline,
  WA_EFG_STR_SELLIST_ALV-KEYINTSV, sy-vline,
  WA_EFG_STR_SELLIST_ALV-KEYTEXT, sy-vline,
  WA_EFG_STR_SELLIST_ALV-TEXTCOLOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFG_STR_SELLIST_ALV 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_EFG_STR_SELLIST_ALV 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_EFG_STR_SELLIST_ALV INTO WA_EFG_STR_SELLIST_ALV.


*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_EFG_STR_SELLIST_ALV_STR, 
LINETYPE TYPE STRING,
SELECTED TYPE STRING,
NO_SELECT TYPE STRING,
BOX_INVSBL TYPE STRING,
TYPECOLOR TYPE STRING,
TYPEINTSV TYPE STRING,
TYPETEXT TYPE STRING,
KEYCOLOR TYPE STRING,
KEYINTSV TYPE STRING,
KEYTEXT TYPE STRING,
TEXTCOLOR TYPE STRING,
TEXTINTSV TYPE STRING,
TEXT TYPE STRING,
ATTR1TEXT TYPE STRING,
ATTR1COLOR TYPE STRING,
ATTR1INTSV TYPE STRING,
ATTR2TEXT TYPE STRING,
ATTR2COLOR TYPE STRING,
ATTR2INTSV TYPE STRING,
ATTR3TEXT TYPE STRING,
ATTR3COLOR TYPE STRING,
ATTR3INTSV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFG_STR_SELLIST_ALV_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_EFG_STR_SELLIST_ALV_STR-LINETYPE sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-SELECTED sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-NO_SELECT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-BOX_INVSBL sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TYPECOLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TYPEINTSV sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TYPETEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-KEYCOLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-KEYINTSV sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-KEYTEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TEXTCOLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TEXTINTSV sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-TEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR1TEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR1COLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR1INTSV sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR2TEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR2COLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR2INTSV sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR3TEXT sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR3COLOR sy-vline 
WA_EFG_STR_SELLIST_ALV_STR-ATTR3INTSV sy-vline      INTO ld_text SEPARATED BY SPACE.

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