ABAP Select data from SAP table PTH_HTHCTX1A_TBL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTH_HTHCTX1A_TBL 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 PTH_HTHCTX1A_TBL. 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 PTH_HTHCTX1A_TBL 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_PTH_HTHCTX1A_TBL TYPE STANDARD TABLE OF PTH_HTHCTX1A_TBL,
      WA_PTH_HTHCTX1A_TBL TYPE PTH_HTHCTX1A_TBL,
      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: <PTH_HTHCTX1A_TBL> TYPE PTH_HTHCTX1A_TBL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTH_HTHCTX1A_TBL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTH_HTHCTX1A_TBL
  INTO TABLE IT_PTH_HTHCTX1A_TBL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTH_HTHCTX1A_TBL
*  INTO TABLE @DATA(IT_PTH_HTHCTX1A_TBL2).
*--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_PTH_HTHCTX1A_TBL INDEX 1 INTO DATA(WA_PTH_HTHCTX1A_TBL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTH_HTHCTX1A_TBL ASSIGNING <PTH_HTHCTX1A_TBL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTH_HTHCTX1A_TBL>-SEQNO = 1.
<PTH_HTHCTX1A_TBL>-RVC_INCOME_BAHT_C1 = 1.
<PTH_HTHCTX1A_TBL>-RVC_INCOME_STANG_C1 = 1.
<PTH_HTHCTX1A_TBL>-RVC_TAX_BAHT_C1 = 1.
<PTH_HTHCTX1A_TBL>-RVC_TAX_STANG_C1 = 1.

ENDLOOP.

LOOP AT IT_PTH_HTHCTX1A_TBL INTO WA_PTH_HTHCTX1A_TBL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTH_HTHCTX1A_TBL-RVC_CONDITION1, sy-vline,
  WA_PTH_HTHCTX1A_TBL-RVC_EE_TAXID01, sy-vline,
  WA_PTH_HTHCTX1A_TBL-RVC_EE_TAXID02, sy-vline,
  WA_PTH_HTHCTX1A_TBL-RVC_EE_TAXID03, sy-vline,
  WA_PTH_HTHCTX1A_TBL-RVC_EE_TAXID04, sy-vline,
  WA_PTH_HTHCTX1A_TBL-RVC_EE_TAXID05, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTH_HTHCTX1A_TBL 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_PTH_HTHCTX1A_TBL 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_PTH_HTHCTX1A_TBL INTO WA_PTH_HTHCTX1A_TBL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PTH_HTHCTX1A_TBL_STR, 
SEQNO TYPE STRING,
RVC_INCOME_BAHT_C1 TYPE STRING,
RVC_INCOME_STANG_C1 TYPE STRING,
RVC_TAX_BAHT_C1 TYPE STRING,
RVC_TAX_STANG_C1 TYPE STRING,
RVC_CONDITION1 TYPE STRING,
RVC_EE_TAXID01 TYPE STRING,
RVC_EE_TAXID02 TYPE STRING,
RVC_EE_TAXID03 TYPE STRING,
RVC_EE_TAXID04 TYPE STRING,
RVC_EE_TAXID05 TYPE STRING,
RVC_EE_TAXID06 TYPE STRING,
RVC_EE_TAXID07 TYPE STRING,
RVC_EE_TAXID08 TYPE STRING,
RVC_EE_TAXID09 TYPE STRING,
RVC_EE_TAXID10 TYPE STRING,
RVC_EE_TAXID11 TYPE STRING,
RVC_EE_TAXID12 TYPE STRING,
RVC_EE_TAXID13 TYPE STRING,
RVC_INCOME_BAHT_C2 TYPE STRING,
RVC_INCOME_STANG_C2 TYPE STRING,
RVC_TAX_BAHT_C2 TYPE STRING,
RVC_TAX_STANG_C2 TYPE STRING,
RVC_CONDITION2 TYPE STRING,
F_NAME_WITH_TITLE TYPE STRING,
L_NAME TYPE STRING,
EE_ADDRESS TYPE STRING,
DATE_OF_PAYMENT TYPE STRING,
RVC_INCOME_BAHT_C3 TYPE STRING,
RVC_INCOME_STANG_C3 TYPE STRING,
RVC_TAX_BAHT_C3 TYPE STRING,
RVC_TAX_STANG_C3 TYPE STRING,
RVC_CONDITION3 TYPE STRING,
RVC_INCOME_BAHT_C4 TYPE STRING,
RVC_INCOME_STANG_C4 TYPE STRING,
RVC_TAX_BAHT_C4 TYPE STRING,
RVC_TAX_STANG_C4 TYPE STRING,
RVC_CONDITION4 TYPE STRING,
RVC_INCOME_BAHT_C1_D TYPE STRING,
RVC_INCOME_STANG_C1_D TYPE STRING,
RVC_TAX_BAHT_C1_D TYPE STRING,
RVC_TAX_STANG_C1_D TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTH_HTHCTX1A_TBL_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_PTH_HTHCTX1A_TBL_STR-SEQNO sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_BAHT_C1 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_STANG_C1 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_BAHT_C1 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_STANG_C1 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_CONDITION1 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID01 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID02 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID03 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID04 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID05 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID06 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID07 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID08 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID09 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID10 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID11 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID12 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_EE_TAXID13 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_BAHT_C2 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_STANG_C2 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_BAHT_C2 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_STANG_C2 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_CONDITION2 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-F_NAME_WITH_TITLE sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-L_NAME sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-EE_ADDRESS sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-DATE_OF_PAYMENT sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_BAHT_C3 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_STANG_C3 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_BAHT_C3 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_STANG_C3 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_CONDITION3 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_BAHT_C4 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_STANG_C4 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_BAHT_C4 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_STANG_C4 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_CONDITION4 sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_BAHT_C1_D sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_INCOME_STANG_C1_D sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_BAHT_C1_D sy-vline 
WA_PTH_HTHCTX1A_TBL_STR-RVC_TAX_STANG_C1_D sy-vline      INTO ld_text SEPARATED BY SPACE.

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