ABAP Select data from SAP table /SAPSLL/BP_MAINTAIN_ALV_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSLL/BP_MAINTAIN_ALV_S 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 /SAPSLL/BP_MAINTAIN_ALV_S. 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 /SAPSLL/BP_MAINTAIN_ALV_S 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_/SAPSLL/BP_MAINTAIN_ALV_S TYPE STANDARD TABLE OF /SAPSLL/BP_MAINTAIN_ALV_S,
      WA_/SAPSLL/BP_MAINTAIN_ALV_S TYPE /SAPSLL/BP_MAINTAIN_ALV_S,
      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: </SAPSLL/BP_MAINTAIN_ALV_S> TYPE /SAPSLL/BP_MAINTAIN_ALV_S.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSLL/BP_MAINTAIN_ALV_S
  INTO TABLE IT_/SAPSLL/BP_MAINTAIN_ALV_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSLL/BP_MAINTAIN_ALV_S
*  INTO TABLE @DATA(IT_/SAPSLL/BP_MAINTAIN_ALV_S2).
*--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_/SAPSLL/BP_MAINTAIN_ALV_S INDEX 1 INTO DATA(WA_/SAPSLL/BP_MAINTAIN_ALV_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSLL/BP_MAINTAIN_ALV_S ASSIGNING </SAPSLL/BP_MAINTAIN_ALV_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSLL/BP_MAINTAIN_ALV_S>-PARTNER = 1.
</SAPSLL/BP_MAINTAIN_ALV_S>-TYPE = 1.
</SAPSLL/BP_MAINTAIN_ALV_S>-NAME_ORG1 = 1.
</SAPSLL/BP_MAINTAIN_ALV_S>-NAME_ORG2 = 1.
</SAPSLL/BP_MAINTAIN_ALV_S>-NAME_LAST = 1.

ENDLOOP.

LOOP AT IT_/SAPSLL/BP_MAINTAIN_ALV_S INTO WA_/SAPSLL/BP_MAINTAIN_ALV_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSLL/BP_MAINTAIN_ALV_S-NAME_FIRST, sy-vline,
  WA_/SAPSLL/BP_MAINTAIN_ALV_S-PARTNER_GUID, sy-vline,
  WA_/SAPSLL/BP_MAINTAIN_ALV_S-GUID_ADRLRID, sy-vline,
  WA_/SAPSLL/BP_MAINTAIN_ALV_S-PINID, sy-vline,
  WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATAB, sy-vline,
  WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATBI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSLL/BP_MAINTAIN_ALV_S 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_/SAPSLL/BP_MAINTAIN_ALV_S 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_/SAPSLL/BP_MAINTAIN_ALV_S INTO WA_/SAPSLL/BP_MAINTAIN_ALV_S.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/BP_MAINTAIN_ALV_S-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/BP_MAINTAIN_ALV_S-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SLLTS, internal->external for field DATAB
CALL FUNCTION 'CONVERSION_EXIT_SLLTS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SLLTS, internal->external for field DATBI
CALL FUNCTION 'CONVERSION_EXIT_SLLTS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATBI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/BP_MAINTAIN_ALV_S-DATBI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSLL/BP_MAINTAIN_ALV_S-ADDRNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSLL/BP_MAINTAIN_ALV_S-ADDRNUMBER.
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_/SAPSLL/BP_MAINTAIN_ALV_S_STR, 
PARTNER TYPE STRING,
TYPE TYPE STRING,
NAME_ORG1 TYPE STRING,
NAME_ORG2 TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
PARTNER_GUID TYPE STRING,
GUID_ADRLRID TYPE STRING,
PINID TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
ADDRNUMBER TYPE STRING,
LGREG TYPE STRING,
PIDTP TYPE STRING,
BEHOE TYPE STRING,
BEKNR TYPE STRING,
DATUMAB TYPE STRING,
DATUMBI TYPE STRING,
TIMEAB TYPE STRING,
TIMEBI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSLL/BP_MAINTAIN_ALV_S_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_/SAPSLL/BP_MAINTAIN_ALV_S_STR-PARTNER sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-TYPE sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-NAME_ORG1 sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-NAME_ORG2 sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-NAME_LAST sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-NAME_FIRST sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-PARTNER_GUID sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-GUID_ADRLRID sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-PINID sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-DATAB sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-DATBI sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-ADDRNUMBER sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-LGREG sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-PIDTP sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-BEHOE sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-BEKNR sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-DATUMAB sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-DATUMBI sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-TIMEAB sy-vline 
WA_/SAPSLL/BP_MAINTAIN_ALV_S_STR-TIMEBI sy-vline      INTO ld_text SEPARATED BY SPACE.

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