ABAP Select data from SAP table ISSRPREFLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSRPREFLOW
*  INTO TABLE @DATA(IT_ISSRPREFLOW2).
*--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_ISSRPREFLOW INDEX 1 INTO DATA(WA_ISSRPREFLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSRPREFLOW>-MANDT = 1.
<ISSRPREFLOW>-PREFLOW_GUID = 1.
<ISSRPREFLOW>-PREFLOW_GUID_REV = 1.
<ISSRPREFLOW>-BUKRS = 1.
<ISSRPREFLOW>-ACCOUNTING_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSRPREFLOW-VAL_AREA, sy-vline,
  WA_ISSRPREFLOW-BP_PARTNR, sy-vline,
  WA_ISSRPREFLOW-RANTYP, sy-vline,
  WA_ISSRPREFLOW-PRODUCT_CAT, sy-vline,
  WA_ISSRPREFLOW-PRODUCT_TYPE, sy-vline,
  WA_ISSRPREFLOW-LEDGERTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSRPREFLOW 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_ISSRPREFLOW 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_ISSRPREFLOW INTO WA_ISSRPREFLOW.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSRPREFLOW-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSRPREFLOW-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSRPREFLOW-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSRPREFLOW-ANLN2.
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_ISSRPREFLOW_STR, 
MANDT TYPE STRING,
PREFLOW_GUID TYPE STRING,
PREFLOW_GUID_REV TYPE STRING,
BUKRS TYPE STRING,
ACCOUNTING_CODE TYPE STRING,
VAL_AREA TYPE STRING,
BP_PARTNR TYPE STRING,
RANTYP TYPE STRING,
PRODUCT_CAT TYPE STRING,
PRODUCT_TYPE TYPE STRING,
LEDGERTYPE TYPE STRING,
ASSET_NR TYPE STRING,
SECURITY_ACCOUNT TYPE STRING,
PRIMANOTA TYPE STRING,
FTP TYPE STRING,
BUDAT TYPE STRING,
VALUT TYPE STRING,
TSL TYPE STRING,
TSLCUR TYPE STRING,
HSL TYPE STRING,
HSLCUR TYPE STRING,
NSL TYPE STRING,
NSLCUR TYPE STRING,
UNITS TYPE STRING,
SGTXT TYPE STRING,
PRESYSTEM TYPE STRING,
PRESYSTEMDB TYPE STRING,
VS_GFTYP TYPE STRING,
VS_BELNR TYPE STRING,
VS_POSNR TYPE STRING,
VS_BELNR_REV TYPE STRING,
VS_VAL_AREA TYPE STRING,
VS_FLOWTYPE TYPE STRING,
VS_RANTYP TYPE STRING,
VS_PCAT TYPE STRING,
VS_PTYPE TYPE STRING,
VS_PRIMANOTA TYPE STRING,
VS_OBJNR TYPE STRING,
VS_CPUDT TYPE STRING,
VS_CPUTM TYPE STRING,
VS_ENAME TYPE STRING,
VS_FI_POST_DATE TYPE STRING,
VS_LEDGER_DATE TYPE STRING,
VS_PAYMENT_DATE TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
AWREF TYPE STRING,
AWPOSNR TYPE STRING,
AWORG_REV TYPE STRING,
AWREF_REV TYPE STRING,
GLVOR TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
HKONT TYPE STRING,
SHKZG TYPE STRING,
FI_BELNR TYPE STRING,
FI_BUZEI TYPE STRING,
BUTIME TYPE STRING,
ECOMPONENT TYPE STRING,
EPGM TYPE STRING,
ENAME TYPE STRING,
EDATUM TYPE STRING,
ETIME TYPE STRING,
PORTFOLIO TYPE STRING,
ACCOUNT_GRP TYPE STRING,
TRADER TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
VALUATION_CLASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSRPREFLOW_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_ISSRPREFLOW_STR-MANDT sy-vline 
WA_ISSRPREFLOW_STR-PREFLOW_GUID sy-vline 
WA_ISSRPREFLOW_STR-PREFLOW_GUID_REV sy-vline 
WA_ISSRPREFLOW_STR-BUKRS sy-vline 
WA_ISSRPREFLOW_STR-ACCOUNTING_CODE sy-vline 
WA_ISSRPREFLOW_STR-VAL_AREA sy-vline 
WA_ISSRPREFLOW_STR-BP_PARTNR sy-vline 
WA_ISSRPREFLOW_STR-RANTYP sy-vline 
WA_ISSRPREFLOW_STR-PRODUCT_CAT sy-vline 
WA_ISSRPREFLOW_STR-PRODUCT_TYPE sy-vline 
WA_ISSRPREFLOW_STR-LEDGERTYPE sy-vline 
WA_ISSRPREFLOW_STR-ASSET_NR sy-vline 
WA_ISSRPREFLOW_STR-SECURITY_ACCOUNT sy-vline 
WA_ISSRPREFLOW_STR-PRIMANOTA sy-vline 
WA_ISSRPREFLOW_STR-FTP sy-vline 
WA_ISSRPREFLOW_STR-BUDAT sy-vline 
WA_ISSRPREFLOW_STR-VALUT sy-vline 
WA_ISSRPREFLOW_STR-TSL sy-vline 
WA_ISSRPREFLOW_STR-TSLCUR sy-vline 
WA_ISSRPREFLOW_STR-HSL sy-vline 
WA_ISSRPREFLOW_STR-HSLCUR sy-vline 
WA_ISSRPREFLOW_STR-NSL sy-vline 
WA_ISSRPREFLOW_STR-NSLCUR sy-vline 
WA_ISSRPREFLOW_STR-UNITS sy-vline 
WA_ISSRPREFLOW_STR-SGTXT sy-vline 
WA_ISSRPREFLOW_STR-PRESYSTEM sy-vline 
WA_ISSRPREFLOW_STR-PRESYSTEMDB sy-vline 
WA_ISSRPREFLOW_STR-VS_GFTYP sy-vline 
WA_ISSRPREFLOW_STR-VS_BELNR sy-vline 
WA_ISSRPREFLOW_STR-VS_POSNR sy-vline 
WA_ISSRPREFLOW_STR-VS_BELNR_REV sy-vline 
WA_ISSRPREFLOW_STR-VS_VAL_AREA sy-vline 
WA_ISSRPREFLOW_STR-VS_FLOWTYPE sy-vline 
WA_ISSRPREFLOW_STR-VS_RANTYP sy-vline 
WA_ISSRPREFLOW_STR-VS_PCAT sy-vline 
WA_ISSRPREFLOW_STR-VS_PTYPE sy-vline 
WA_ISSRPREFLOW_STR-VS_PRIMANOTA sy-vline 
WA_ISSRPREFLOW_STR-VS_OBJNR sy-vline 
WA_ISSRPREFLOW_STR-VS_CPUDT sy-vline 
WA_ISSRPREFLOW_STR-VS_CPUTM sy-vline 
WA_ISSRPREFLOW_STR-VS_ENAME sy-vline 
WA_ISSRPREFLOW_STR-VS_FI_POST_DATE sy-vline 
WA_ISSRPREFLOW_STR-VS_LEDGER_DATE sy-vline 
WA_ISSRPREFLOW_STR-VS_PAYMENT_DATE sy-vline 
WA_ISSRPREFLOW_STR-AWSYS sy-vline 
WA_ISSRPREFLOW_STR-AWTYP sy-vline 
WA_ISSRPREFLOW_STR-AWORG sy-vline 
WA_ISSRPREFLOW_STR-AWREF sy-vline 
WA_ISSRPREFLOW_STR-AWPOSNR sy-vline 
WA_ISSRPREFLOW_STR-AWORG_REV sy-vline 
WA_ISSRPREFLOW_STR-AWREF_REV sy-vline 
WA_ISSRPREFLOW_STR-GLVOR sy-vline 
WA_ISSRPREFLOW_STR-GJAHR sy-vline 
WA_ISSRPREFLOW_STR-MONAT sy-vline 
WA_ISSRPREFLOW_STR-HKONT sy-vline 
WA_ISSRPREFLOW_STR-SHKZG sy-vline 
WA_ISSRPREFLOW_STR-FI_BELNR sy-vline 
WA_ISSRPREFLOW_STR-FI_BUZEI sy-vline 
WA_ISSRPREFLOW_STR-BUTIME sy-vline 
WA_ISSRPREFLOW_STR-ECOMPONENT sy-vline 
WA_ISSRPREFLOW_STR-EPGM sy-vline 
WA_ISSRPREFLOW_STR-ENAME sy-vline 
WA_ISSRPREFLOW_STR-EDATUM sy-vline 
WA_ISSRPREFLOW_STR-ETIME sy-vline 
WA_ISSRPREFLOW_STR-PORTFOLIO sy-vline 
WA_ISSRPREFLOW_STR-ACCOUNT_GRP sy-vline 
WA_ISSRPREFLOW_STR-TRADER sy-vline 
WA_ISSRPREFLOW_STR-ANLN1 sy-vline 
WA_ISSRPREFLOW_STR-ANLN2 sy-vline 
WA_ISSRPREFLOW_STR-VALUATION_CLASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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