ABAP Select data from SAP table PC26B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC26B 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 PC26B. 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 PC26B 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_PC26B TYPE STANDARD TABLE OF PC26B,
      WA_PC26B TYPE PC26B,
      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: <PC26B> TYPE PC26B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC26B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC26B
  INTO TABLE IT_PC26B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC26B
*  INTO TABLE @DATA(IT_PC26B2).
*--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_PC26B INDEX 1 INTO DATA(WA_PC26B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC26B ASSIGNING <PC26B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC26B>-IDENT11 = 1.
<PC26B>-ANNEE12 = 1.
<PC26B>-NDRDE13 = 1.
<PC26B>-NBRDRE14 = 1.
<PC26B>-NRDRA15 = 1.

ENDLOOP.

LOOP AT IT_PC26B INTO WA_PC26B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC26B-NATTVA16, sy-vline,
  WA_PC26B-CENT17, sy-vline,
  WA_PC26B-DIV18, sy-vline,
  WA_PC26B-DIV19, sy-vline,
  WA_PC26B-SUP110, sy-vline,
  WA_PC26B-NOMDR111, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC26B 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_PC26B 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_PC26B INTO WA_PC26B.


*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 GJAHR, internal->external for field ANNEE12
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PC26B-ANNEE12
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC26B-ANNEE12.
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_PC26B_STR, 
IDENT11 TYPE STRING,
ANNEE12 TYPE STRING,
NDRDE13 TYPE STRING,
NBRDRE14 TYPE STRING,
NRDRA15 TYPE STRING,
NATTVA16 TYPE STRING,
CENT17 TYPE STRING,
DIV18 TYPE STRING,
DIV19 TYPE STRING,
SUP110 TYPE STRING,
NOMDR111 TYPE STRING,
NOMDCJT112 TYPE STRING,
ADRDEB113 TYPE STRING,
CPDEB114 TYPE STRING,
LOCD115 TYPE STRING,
PAYSD116 TYPE STRING,
TELDR117 TYPE STRING,
FAXDR118 TYPE STRING,
PDREV119 TYPE STRING,
CLDREV120 TYPE STRING,
NBRDR121 TYPE STRING,
NBCDR122 TYPE STRING,
NBCDR123 TYPE STRING,
NSSOC124 TYPE STRING,
NEDRM125 TYPE STRING,
NCPETR126 TYPE STRING,
NOMDR127 TYPE STRING,
NOMDR128 TYPE STRING,
ADRDR129 TYPE STRING,
LOCDR130 TYPE STRING,
LANG131 TYPE STRING,
NOMDR132 TYPE STRING,
NOMDR133 TYPE STRING,
ADRDR134 TYPE STRING,
LOCDR135 TYPE STRING,
LANG136 TYPE STRING,
NATNUM137 TYPE STRING,
EML138 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC26B_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_PC26B_STR-IDENT11 sy-vline 
WA_PC26B_STR-ANNEE12 sy-vline 
WA_PC26B_STR-NDRDE13 sy-vline 
WA_PC26B_STR-NBRDRE14 sy-vline 
WA_PC26B_STR-NRDRA15 sy-vline 
WA_PC26B_STR-NATTVA16 sy-vline 
WA_PC26B_STR-CENT17 sy-vline 
WA_PC26B_STR-DIV18 sy-vline 
WA_PC26B_STR-DIV19 sy-vline 
WA_PC26B_STR-SUP110 sy-vline 
WA_PC26B_STR-NOMDR111 sy-vline 
WA_PC26B_STR-NOMDCJT112 sy-vline 
WA_PC26B_STR-ADRDEB113 sy-vline 
WA_PC26B_STR-CPDEB114 sy-vline 
WA_PC26B_STR-LOCD115 sy-vline 
WA_PC26B_STR-PAYSD116 sy-vline 
WA_PC26B_STR-TELDR117 sy-vline 
WA_PC26B_STR-FAXDR118 sy-vline 
WA_PC26B_STR-PDREV119 sy-vline 
WA_PC26B_STR-CLDREV120 sy-vline 
WA_PC26B_STR-NBRDR121 sy-vline 
WA_PC26B_STR-NBCDR122 sy-vline 
WA_PC26B_STR-NBCDR123 sy-vline 
WA_PC26B_STR-NSSOC124 sy-vline 
WA_PC26B_STR-NEDRM125 sy-vline 
WA_PC26B_STR-NCPETR126 sy-vline 
WA_PC26B_STR-NOMDR127 sy-vline 
WA_PC26B_STR-NOMDR128 sy-vline 
WA_PC26B_STR-ADRDR129 sy-vline 
WA_PC26B_STR-LOCDR130 sy-vline 
WA_PC26B_STR-LANG131 sy-vline 
WA_PC26B_STR-NOMDR132 sy-vline 
WA_PC26B_STR-NOMDR133 sy-vline 
WA_PC26B_STR-ADRDR134 sy-vline 
WA_PC26B_STR-LOCDR135 sy-vline 
WA_PC26B_STR-LANG136 sy-vline 
WA_PC26B_STR-NATNUM137 sy-vline 
WA_PC26B_STR-EML138 sy-vline      INTO ld_text SEPARATED BY SPACE.

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