ABAP Select data from SAP table /BEV3/CHTMHISTOR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV3/CHTMHISTOR 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 /BEV3/CHTMHISTOR. 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 /BEV3/CHTMHISTOR 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_/BEV3/CHTMHISTOR TYPE STANDARD TABLE OF /BEV3/CHTMHISTOR,
      WA_/BEV3/CHTMHISTOR TYPE /BEV3/CHTMHISTOR,
      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: </BEV3/CHTMHISTOR> TYPE /BEV3/CHTMHISTOR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV3/CHTMHISTOR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV3/CHTMHISTOR
  INTO TABLE IT_/BEV3/CHTMHISTOR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV3/CHTMHISTOR
*  INTO TABLE @DATA(IT_/BEV3/CHTMHISTOR2).
*--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_/BEV3/CHTMHISTOR INDEX 1 INTO DATA(WA_/BEV3/CHTMHISTOR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV3/CHTMHISTOR ASSIGNING </BEV3/CHTMHISTOR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV3/CHTMHISTOR>-MANDT = 1.
</BEV3/CHTMHISTOR>-YVWDNR = 1.
</BEV3/CHTMHISTOR>-VBKL_TM = 1.
</BEV3/CHTMHISTOR>-RI_TM = 1.
</BEV3/CHTMHISTOR>-VBIN_TM = 1.

ENDLOOP.

LOOP AT IT_/BEV3/CHTMHISTOR INTO WA_/BEV3/CHTMHISTOR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV3/CHTMHISTOR-ACTNR, sy-vline,
  WA_/BEV3/CHTMHISTOR-FOLGE, sy-vline,
  WA_/BEV3/CHTMHISTOR-ERG, sy-vline,
  WA_/BEV3/CHTMHISTOR-ST_KZ, sy-vline,
  WA_/BEV3/CHTMHISTOR-EA_KZ, sy-vline,
  WA_/BEV3/CHTMHISTOR-VG_ACTNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV3/CHTMHISTOR 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_/BEV3/CHTMHISTOR 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_/BEV3/CHTMHISTOR INTO WA_/BEV3/CHTMHISTOR.


*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_/BEV3/CHTMHISTOR_STR, 
MANDT TYPE STRING,
YVWDNR TYPE STRING,
VBKL_TM TYPE STRING,
RI_TM TYPE STRING,
VBIN_TM TYPE STRING,
ACTNR TYPE STRING,
FOLGE TYPE STRING,
ERG TYPE STRING,
ST_KZ TYPE STRING,
EA_KZ TYPE STRING,
VG_ACTNR TYPE STRING,
VBNR_TM TYPE STRING,
ABR_NR TYPE STRING,
ABR_TYP TYPE STRING,
ABRSLKDAT TYPE STRING,
ABRDAT_L TYPE STRING,
PERGRP_BCH TYPE STRING,
PERBG_1BCH TYPE STRING,
PERND_LBCH TYPE STRING,
ANZABRTEIL TYPE STRING,
ANZ_ANF TYPE STRING,
ANFDAT_L TYPE STRING,
ANZ_ANW TYPE STRING,
ANWDAT_L TYPE STRING,
USER_TM TYPE STRING,
DATE_TM TYPE STRING,
TIME_TM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV3/CHTMHISTOR_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_/BEV3/CHTMHISTOR_STR-MANDT sy-vline 
WA_/BEV3/CHTMHISTOR_STR-YVWDNR sy-vline 
WA_/BEV3/CHTMHISTOR_STR-VBKL_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-RI_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-VBIN_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ACTNR sy-vline 
WA_/BEV3/CHTMHISTOR_STR-FOLGE sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ERG sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ST_KZ sy-vline 
WA_/BEV3/CHTMHISTOR_STR-EA_KZ sy-vline 
WA_/BEV3/CHTMHISTOR_STR-VG_ACTNR sy-vline 
WA_/BEV3/CHTMHISTOR_STR-VBNR_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ABR_NR sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ABR_TYP sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ABRSLKDAT sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ABRDAT_L sy-vline 
WA_/BEV3/CHTMHISTOR_STR-PERGRP_BCH sy-vline 
WA_/BEV3/CHTMHISTOR_STR-PERBG_1BCH sy-vline 
WA_/BEV3/CHTMHISTOR_STR-PERND_LBCH sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ANZABRTEIL sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ANZ_ANF sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ANFDAT_L sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ANZ_ANW sy-vline 
WA_/BEV3/CHTMHISTOR_STR-ANWDAT_L sy-vline 
WA_/BEV3/CHTMHISTOR_STR-USER_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-DATE_TM sy-vline 
WA_/BEV3/CHTMHISTOR_STR-TIME_TM sy-vline      INTO ld_text SEPARATED BY SPACE.

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