ABAP Select data from SAP table PHTMLB_GANTTCHART_REGION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PHTMLB_GANTTCHART_REGION
*  INTO TABLE @DATA(IT_PHTMLB_GANTTCHART_REGION2).
*--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_PHTMLB_GANTTCHART_REGION INDEX 1 INTO DATA(WA_PHTMLB_GANTTCHART_REGION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PHTMLB_GANTTCHART_REGION>-STARTDATE = 1.
<PHTMLB_GANTTCHART_REGION>-STARTROW = 1.
<PHTMLB_GANTTCHART_REGION>-ENDDATE = 1.
<PHTMLB_GANTTCHART_REGION>-ENDROW = 1.
<PHTMLB_GANTTCHART_REGION>-TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PHTMLB_GANTTCHART_REGION-TOOLTIP, sy-vline,
  WA_PHTMLB_GANTTCHART_REGION-TEXTDATE, sy-vline,
  WA_PHTMLB_GANTTCHART_REGION-TEXTROW, sy-vline,
  WA_PHTMLB_GANTTCHART_REGION-COLOR, sy-vline,
  WA_PHTMLB_GANTTCHART_REGION-SHADING, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PHTMLB_GANTTCHART_REGION 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_PHTMLB_GANTTCHART_REGION 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_PHTMLB_GANTTCHART_REGION INTO WA_PHTMLB_GANTTCHART_REGION.


*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_PHTMLB_GANTTCHART_REGION_STR, 
STARTDATE TYPE STRING,
STARTROW TYPE STRING,
ENDDATE TYPE STRING,
ENDROW TYPE STRING,
TEXT TYPE STRING,
TOOLTIP TYPE STRING,
TEXTDATE TYPE STRING,
TEXTROW TYPE STRING,
COLOR TYPE STRING,
SHADING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PHTMLB_GANTTCHART_REGION_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_PHTMLB_GANTTCHART_REGION_STR-STARTDATE sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-STARTROW sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-ENDDATE sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-ENDROW sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-TEXT sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-TOOLTIP sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-TEXTDATE sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-TEXTROW sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-COLOR sy-vline 
WA_PHTMLB_GANTTCHART_REGION_STR-SHADING sy-vline      INTO ld_text SEPARATED BY SPACE.

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