ABAP Select data from SAP table OIH_J1B_PIS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIH_J1B_PIS 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 OIH_J1B_PIS. 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 OIH_J1B_PIS 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_OIH_J1B_PIS TYPE STANDARD TABLE OF OIH_J1B_PIS,
      WA_OIH_J1B_PIS TYPE OIH_J1B_PIS,
      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: <OIH_J1B_PIS> TYPE OIH_J1B_PIS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIH_J1B_PIS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIH_J1B_PIS
  INTO TABLE IT_OIH_J1B_PIS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIH_J1B_PIS
*  INTO TABLE @DATA(IT_OIH_J1B_PIS2).
*--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_OIH_J1B_PIS INDEX 1 INTO DATA(WA_OIH_J1B_PIS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIH_J1B_PIS ASSIGNING <OIH_J1B_PIS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIH_J1B_PIS>-MANDT = 1.
<OIH_J1B_PIS>-LAND1 = 1.
<OIH_J1B_PIS>-OIHVTYP = 1.
<OIH_J1B_PIS>-MATNR = 1.
<OIH_J1B_PIS>-MTXGR = 1.

ENDLOOP.

LOOP AT IT_OIH_J1B_PIS INTO WA_OIH_J1B_PIS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIH_J1B_PIS-STGRP, sy-vline,
  WA_OIH_J1B_PIS-VALIDFROM, sy-vline,
  WA_OIH_J1B_PIS-VALIDTO, sy-vline,
  WA_OIH_J1B_PIS-PIS, sy-vline,
  WA_OIH_J1B_PIS-COFINS, sy-vline,
  WA_OIH_J1B_PIS-TXLW4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIH_J1B_PIS 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_OIH_J1B_PIS 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_OIH_J1B_PIS INTO WA_OIH_J1B_PIS.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_PIS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_PIS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDFROM
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_PIS-VALIDFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_PIS-VALIDFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVDT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_INVDT_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_PIS-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_PIS-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TXLW4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_PIS-TXLW4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_PIS-TXLW4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TXLW5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIH_J1B_PIS-TXLW5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_J1B_PIS-TXLW5.
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_OIH_J1B_PIS_STR, 
MANDT TYPE STRING,
LAND1 TYPE STRING,
OIHVTYP TYPE STRING,
MATNR TYPE STRING,
MTXGR TYPE STRING,
STGRP TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
PIS TYPE STRING,
COFINS TYPE STRING,
TXLW4 TYPE STRING,
TXLW5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIH_J1B_PIS_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_OIH_J1B_PIS_STR-MANDT sy-vline 
WA_OIH_J1B_PIS_STR-LAND1 sy-vline 
WA_OIH_J1B_PIS_STR-OIHVTYP sy-vline 
WA_OIH_J1B_PIS_STR-MATNR sy-vline 
WA_OIH_J1B_PIS_STR-MTXGR sy-vline 
WA_OIH_J1B_PIS_STR-STGRP sy-vline 
WA_OIH_J1B_PIS_STR-VALIDFROM sy-vline 
WA_OIH_J1B_PIS_STR-VALIDTO sy-vline 
WA_OIH_J1B_PIS_STR-PIS sy-vline 
WA_OIH_J1B_PIS_STR-COFINS sy-vline 
WA_OIH_J1B_PIS_STR-TXLW4 sy-vline 
WA_OIH_J1B_PIS_STR-TXLW5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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