ABAP Select data from SAP table HCMT_BSP_PA_CZ_R0011_LIN_A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HCMT_BSP_PA_CZ_R0011_LIN_A 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 HCMT_BSP_PA_CZ_R0011_LIN_A. 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 HCMT_BSP_PA_CZ_R0011_LIN_A 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_HCMT_BSP_PA_CZ_R0011_LIN_A TYPE STANDARD TABLE OF HCMT_BSP_PA_CZ_R0011_LIN_A,
      WA_HCMT_BSP_PA_CZ_R0011_LIN_A TYPE HCMT_BSP_PA_CZ_R0011_LIN_A,
      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: <HCMT_BSP_PA_CZ_R0011_LIN_A> TYPE HCMT_BSP_PA_CZ_R0011_LIN_A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMT_BSP_PA_CZ_R0011_LIN_A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMT_BSP_PA_CZ_R0011_LIN_A
  INTO TABLE IT_HCMT_BSP_PA_CZ_R0011_LIN_A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMT_BSP_PA_CZ_R0011_LIN_A
*  INTO TABLE @DATA(IT_HCMT_BSP_PA_CZ_R0011_LIN_A2).
*--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_HCMT_BSP_PA_CZ_R0011_LIN_A INDEX 1 INTO DATA(WA_HCMT_BSP_PA_CZ_R0011_LIN_A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMT_BSP_PA_CZ_R0011_LIN_A ASSIGNING <HCMT_BSP_PA_CZ_R0011_LIN_A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMT_BSP_PA_CZ_R0011_LIN_A>-OBJECT_KEY = 1.
<HCMT_BSP_PA_CZ_R0011_LIN_A>-VARKY = 1.
<HCMT_BSP_PA_CZ_R0011_LIN_A>-HLPWT = 1.
<HCMT_BSP_PA_CZ_R0011_LIN_A>-CORWT = 1.
<HCMT_BSP_PA_CZ_R0011_LIN_A>-LGTXT = 1.

ENDLOOP.

LOOP AT IT_HCMT_BSP_PA_CZ_R0011_LIN_A INTO WA_HCMT_BSP_PA_CZ_R0011_LIN_A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMT_BSP_PA_CZ_R0011_LIN_A-BETRG, sy-vline,
  WA_HCMT_BSP_PA_CZ_R0011_LIN_A-BETRG_DB, sy-vline,
  WA_HCMT_BSP_PA_CZ_R0011_LIN_A-WAERS, sy-vline,
  WA_HCMT_BSP_PA_CZ_R0011_LIN_A-GENKO, sy-vline,
  WA_HCMT_BSP_PA_CZ_R0011_LIN_A-VGENK, sy-vline,
  WA_HCMT_BSP_PA_CZ_R0011_LIN_A-MZEXI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMT_BSP_PA_CZ_R0011_LIN_A 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_HCMT_BSP_PA_CZ_R0011_LIN_A 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_HCMT_BSP_PA_CZ_R0011_LIN_A INTO WA_HCMT_BSP_PA_CZ_R0011_LIN_A.


*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_HCMT_BSP_PA_CZ_R0011_LIN_A_STR, 
OBJECT_KEY TYPE STRING,
VARKY TYPE STRING,
HLPWT TYPE STRING,
CORWT TYPE STRING,
LGTXT TYPE STRING,
BETRG TYPE STRING,
BETRG_DB TYPE STRING,
WAERS TYPE STRING,
GENKO TYPE STRING,
VGENK TYPE STRING,
MZEXI TYPE STRING,
MDKV1 TYPE STRING,
MDKV2 TYPE STRING,
MDKV3 TYPE STRING,
MDKV4 TYPE STRING,
MDKV5 TYPE STRING,
MDKV6 TYPE STRING,
MDKV7 TYPE STRING,
CWCHG TYPE STRING,
DEL_FLAG TYPE STRING,
SEQNR TYPE STRING,
OBJPS TYPE STRING,
BEGDA TYPE STRING,
GENKO_ICON TYPE STRING,
MZEXI_ICON TYPE STRING,
MDKV1_ICON TYPE STRING,
MDKV2_ICON TYPE STRING,
MDKV3_ICON TYPE STRING,
MDKV4_ICON TYPE STRING,
MDKV5_ICON TYPE STRING,
MDKV6_ICON TYPE STRING,
MDKV7_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMT_BSP_PA_CZ_R0011_LIN_A_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_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-OBJECT_KEY sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-VARKY sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-HLPWT sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-CORWT sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-LGTXT sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-BETRG sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-BETRG_DB sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-WAERS sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-GENKO sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-VGENK sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MZEXI sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV1 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV2 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV3 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV4 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV5 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV6 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV7 sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-CWCHG sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-DEL_FLAG sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-SEQNR sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-OBJPS sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-BEGDA sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-GENKO_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MZEXI_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV1_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV2_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV3_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV4_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV5_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV6_ICON sy-vline 
WA_HCMT_BSP_PA_CZ_R0011_LIN_A_STR-MDKV7_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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