ABAP Select data from SAP table ISSR_S_LO_FLOWS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSR_S_LO_FLOWS
*  INTO TABLE @DATA(IT_ISSR_S_LO_FLOWS2).
*--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_ISSR_S_LO_FLOWS INDEX 1 INTO DATA(WA_ISSR_S_LO_FLOWS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSR_S_LO_FLOWS>-MANDT = 1.
<ISSR_S_LO_FLOWS>-BUKRS = 1.
<ISSR_S_LO_FLOWS>-RBELKPFD = 1.
<ISSR_S_LO_FLOWS>-RPOSNR = 1.
<ISSR_S_LO_FLOWS>-RDARNEHM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSR_S_LO_FLOWS-RANL, sy-vline,
  WA_ISSR_S_LO_FLOWS-SANLF, sy-vline,
  WA_ISSR_S_LO_FLOWS-GSART, sy-vline,
  WA_ISSR_S_LO_FLOWS-DBUDAT, sy-vline,
  WA_ISSR_S_LO_FLOWS-DGJAHR, sy-vline,
  WA_ISSR_S_LO_FLOWS-DMONAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSR_S_LO_FLOWS 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_ISSR_S_LO_FLOWS 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_ISSR_S_LO_FLOWS INTO WA_ISSR_S_LO_FLOWS.


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

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

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

*Conversion exit GJAHR, internal->external for field DGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISSR_S_LO_FLOWS-DGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSR_S_LO_FLOWS-DGJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RZEBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSR_S_LO_FLOWS-RZEBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSR_S_LO_FLOWS-RZEBEL.
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_ISSR_S_LO_FLOWS_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RBELKPFD TYPE STRING,
RPOSNR TYPE STRING,
RDARNEHM TYPE STRING,
RANL TYPE STRING,
SANLF TYPE STRING,
GSART TYPE STRING,
DBUDAT TYPE STRING,
DGJAHR TYPE STRING,
DMONAT TYPE STRING,
SSTORNO TYPE STRING,
RSTBLG TYPE STRING,
SBEWART TYPE STRING,
BNWHR TYPE STRING,
SNWHR TYPE STRING,
BBWHR TYPE STRING,
SBWHR TYPE STRING,
BCWHR TYPE STRING,
SCWHR TYPE STRING,
BHWHR TYPE STRING,
SSTATI TYPE STRING,
SBEWZITI TYPE STRING,
VVSSOLHAB TYPE STRING,
RSOLL TYPE STRING,
RHABEN TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RPNNR TYPE STRING,
RVZBLG TYPE STRING,
BUCHTXT TYPE STRING,
BZUSAGE TYPE STRING,
SANTWHR TYPE STRING,
RPORTB TYPE STRING,
OBJNR TYPE STRING,
SWHRORG TYPE STRING,
DCONVERT TYPE STRING,
DCORRECT TYPE STRING,
SAKTPAS TYPE STRING,
COM_VAL_CLASS TYPE STRING,
RREFKONT TYPE STRING,
DBLDAT TYPE STRING,
DVALUT TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
KOSTL TYPE STRING,
GSBER TYPE STRING,
RZEBEL TYPE STRING,
SVORGKZ TYPE STRING,
SARCHIV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSR_S_LO_FLOWS_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_ISSR_S_LO_FLOWS_STR-MANDT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BUKRS sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RBELKPFD sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RPOSNR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RDARNEHM sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RANL sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SANLF sy-vline 
WA_ISSR_S_LO_FLOWS_STR-GSART sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DBUDAT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DGJAHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DMONAT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SSTORNO sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RSTBLG sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SBEWART sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BNWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SNWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BBWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SBWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BCWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SCWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BHWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SSTATI sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SBEWZITI sy-vline 
WA_ISSR_S_LO_FLOWS_STR-VVSSOLHAB sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RSOLL sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RHABEN sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RERF sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DERF sy-vline 
WA_ISSR_S_LO_FLOWS_STR-TERF sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RBEAR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DBEAR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-TBEAR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RPNNR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RVZBLG sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BUCHTXT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-BZUSAGE sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SANTWHR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RPORTB sy-vline 
WA_ISSR_S_LO_FLOWS_STR-OBJNR sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SWHRORG sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DCONVERT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DCORRECT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SAKTPAS sy-vline 
WA_ISSR_S_LO_FLOWS_STR-COM_VAL_CLASS sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RREFKONT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DBLDAT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DVALUT sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DFAELL sy-vline 
WA_ISSR_S_LO_FLOWS_STR-DDISPO sy-vline 
WA_ISSR_S_LO_FLOWS_STR-KOSTL sy-vline 
WA_ISSR_S_LO_FLOWS_STR-GSBER sy-vline 
WA_ISSR_S_LO_FLOWS_STR-RZEBEL sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SVORGKZ sy-vline 
WA_ISSR_S_LO_FLOWS_STR-SARCHIV sy-vline      INTO ld_text SEPARATED BY SPACE.

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