ABAP Select data from SAP table JBSSP01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBSSP01 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 JBSSP01. 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 JBSSP01 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_JBSSP01 TYPE STANDARD TABLE OF JBSSP01,
      WA_JBSSP01 TYPE JBSSP01,
      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: <JBSSP01> TYPE JBSSP01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JBSSP01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JBSSP01
  INTO TABLE IT_JBSSP01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBSSP01
*  INTO TABLE @DATA(IT_JBSSP012).
*--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_JBSSP01 INDEX 1 INTO DATA(WA_JBSSP012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JBSSP01 ASSIGNING <JBSSP01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBSSP01>-RFIKON = 1.
<JBSSP01>-SAMRKR = 1.
<JBSSP01>-SAMRSN = 1.
<JBSSP01>-SVRARB = 1.
<JBSSP01>-SVRBRT = 1.

ENDLOOP.

LOOP AT IT_JBSSP01 INTO WA_JBSSP01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBSSP01-SAMRFR, sy-vline,
  WA_JBSSP01-BWKTSL, sy-vline,
  WA_JBSSP01-BWNOML, sy-vline,
  WA_JBSSP01-BSPARB, sy-vline,
  WA_JBSSP01-BSPARG, sy-vline,
  WA_JBSSP01-BGSIKO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBSSP01 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_JBSSP01 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_JBSSP01 INTO WA_JBSSP01.


*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 RFIKON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBSSP01-RFIKON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBSSP01-RFIKON.
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_JBSSP01_STR, 
RFIKON TYPE STRING,
SAMRKR TYPE STRING,
SAMRSN TYPE STRING,
SVRARB TYPE STRING,
SVRBRT TYPE STRING,
SAMRFR TYPE STRING,
BWKTSL TYPE STRING,
BWNOML TYPE STRING,
BSPARB TYPE STRING,
BSPARG TYPE STRING,
BGSIKO TYPE STRING,
DBLFZ TYPE STRING,
DELFZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBSSP01_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_JBSSP01_STR-RFIKON sy-vline 
WA_JBSSP01_STR-SAMRKR sy-vline 
WA_JBSSP01_STR-SAMRSN sy-vline 
WA_JBSSP01_STR-SVRARB sy-vline 
WA_JBSSP01_STR-SVRBRT sy-vline 
WA_JBSSP01_STR-SAMRFR sy-vline 
WA_JBSSP01_STR-BWKTSL sy-vline 
WA_JBSSP01_STR-BWNOML sy-vline 
WA_JBSSP01_STR-BSPARB sy-vline 
WA_JBSSP01_STR-BSPARG sy-vline 
WA_JBSSP01_STR-BGSIKO sy-vline 
WA_JBSSP01_STR-DBLFZ sy-vline 
WA_JBSSP01_STR-DELFZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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