ABAP Select data from SAP table /SAPCEM/SALV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCEM/SALV1 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 /SAPCEM/SALV1. 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 /SAPCEM/SALV1 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_/SAPCEM/SALV1 TYPE STANDARD TABLE OF /SAPCEM/SALV1,
      WA_/SAPCEM/SALV1 TYPE /SAPCEM/SALV1,
      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: </SAPCEM/SALV1> TYPE /SAPCEM/SALV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPCEM/SALV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCEM/SALV1
  INTO TABLE IT_/SAPCEM/SALV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCEM/SALV1
*  INTO TABLE @DATA(IT_/SAPCEM/SALV12).
*--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_/SAPCEM/SALV1 INDEX 1 INTO DATA(WA_/SAPCEM/SALV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCEM/SALV1 ASSIGNING </SAPCEM/SALV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCEM/SALV1>-SYMBD = 1.
</SAPCEM/SALV1>-/SAPCEM/EMPFAE = 1.
</SAPCEM/SALV1>-MANDT = 1.
</SAPCEM/SALV1>-/SAPCEM/BDNUM = 1.
</SAPCEM/SALV1>-/SAPCEM/BDPOS = 1.

ENDLOOP.

LOOP AT IT_/SAPCEM/SALV1 INTO WA_/SAPCEM/SALV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCEM/SALV1-/SAPCEM/UEPOS, sy-vline,
  WA_/SAPCEM/SALV1-/SAPCEM/KLART, sy-vline,
  WA_/SAPCEM/SALV1-/SAPCEM/KLASS, sy-vline,
  WA_/SAPCEM/SALV1-/SAPCEM/EQUNR, sy-vline,
  WA_/SAPCEM/SALV1-/SAPCEM/MENGE, sy-vline,
  WA_/SAPCEM/SALV1-/SAPCEM/MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCEM/SALV1 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_/SAPCEM/SALV1 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_/SAPCEM/SALV1 INTO WA_/SAPCEM/SALV1.


*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 /SAPCEM/EMPFAE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-/SAPCEM/EMPFAE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-/SAPCEM/EMPFAE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /SAPCEM/BDNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-/SAPCEM/BDNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-/SAPCEM/BDNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /SAPCEM/EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-/SAPCEM/EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-/SAPCEM/EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field /SAPCEM/MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-/SAPCEM/MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-/SAPCEM/MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field J_3GBELNRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-J_3GBELNRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-J_3GBELNRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field /SAPCEM/EXNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCEM/SALV1-/SAPCEM/EXNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCEM/SALV1-/SAPCEM/EXNUM.
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_/SAPCEM/SALV1_STR, 
SYMBD TYPE STRING,
/SAPCEM/EMPFAE TYPE STRING,
MANDT TYPE STRING,
/SAPCEM/BDNUM TYPE STRING,
/SAPCEM/BDPOS TYPE STRING,
/SAPCEM/UEPOS TYPE STRING,
/SAPCEM/KLART TYPE STRING,
/SAPCEM/KLASS TYPE STRING,
/SAPCEM/EQUNR TYPE STRING,
/SAPCEM/MENGE TYPE STRING,
/SAPCEM/MEINS TYPE STRING,
/SAPCEM/BDBEG TYPE STRING,
/SAPCEM/BDBEGU TYPE STRING,
/SAPCEM/BDEND TYPE STRING,
/SAPCEM/BDENDU TYPE STRING,
/SAPCEM/STATU TYPE STRING,
/SAPCEM/BEDID TYPE STRING,
/SAPCEM/BEDZL TYPE STRING,
/SAPCEM/KTEXT TYPE STRING,
/SAPCEM/BDZUO TYPE STRING,
PERNR TYPE STRING,
ERNAM TYPE STRING,
ERZET TYPE STRING,
ERDAT TYPE STRING,
UNAME TYPE STRING,
AEZET TYPE STRING,
AEDTM TYPE STRING,
J_3GBELNRI TYPE STRING,
J_3GPOSNRI TYPE STRING,
J_3GUPOSNR TYPE STRING,
/SAPCEM/SPLITPOS TYPE STRING,
EMPTX TYPE STRING,
DBER TYPE STRING,
/SAPCEM/KLATX TYPE STRING,
/SAPCEM/EQKTX TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
PERNM TYPE STRING,
EQTYP TYPE STRING,
EQART TYPE STRING,
/SAPCEM/EXNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCEM/SALV1_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_/SAPCEM/SALV1_STR-SYMBD sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/EMPFAE sy-vline 
WA_/SAPCEM/SALV1_STR-MANDT sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDNUM sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDPOS sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/UEPOS sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/KLART sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/KLASS sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/EQUNR sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/MENGE sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/MEINS sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDBEG sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDBEGU sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDEND sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDENDU sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/STATU sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BEDID sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BEDZL sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/KTEXT sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/BDZUO sy-vline 
WA_/SAPCEM/SALV1_STR-PERNR sy-vline 
WA_/SAPCEM/SALV1_STR-ERNAM sy-vline 
WA_/SAPCEM/SALV1_STR-ERZET sy-vline 
WA_/SAPCEM/SALV1_STR-ERDAT sy-vline 
WA_/SAPCEM/SALV1_STR-UNAME sy-vline 
WA_/SAPCEM/SALV1_STR-AEZET sy-vline 
WA_/SAPCEM/SALV1_STR-AEDTM sy-vline 
WA_/SAPCEM/SALV1_STR-J_3GBELNRI sy-vline 
WA_/SAPCEM/SALV1_STR-J_3GPOSNRI sy-vline 
WA_/SAPCEM/SALV1_STR-J_3GUPOSNR sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/SPLITPOS sy-vline 
WA_/SAPCEM/SALV1_STR-EMPTX sy-vline 
WA_/SAPCEM/SALV1_STR-DBER sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/KLATX sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/EQKTX sy-vline 
WA_/SAPCEM/SALV1_STR-BRGEW sy-vline 
WA_/SAPCEM/SALV1_STR-GEWEI sy-vline 
WA_/SAPCEM/SALV1_STR-PERNM sy-vline 
WA_/SAPCEM/SALV1_STR-EQTYP sy-vline 
WA_/SAPCEM/SALV1_STR-EQART sy-vline 
WA_/SAPCEM/SALV1_STR-/SAPCEM/EXNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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