ABAP Select data from SAP table PHTMLB_GANTTCHART 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 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. 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 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 TYPE STANDARD TABLE OF PHTMLB_GANTTCHART,
      WA_PHTMLB_GANTTCHART TYPE PHTMLB_GANTTCHART,
      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> TYPE PHTMLB_GANTTCHART.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PHTMLB_GANTTCHART
*  INTO TABLE @DATA(IT_PHTMLB_GANTTCHART2).
*--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 INDEX 1 INTO DATA(WA_PHTMLB_GANTTCHART2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PHTMLB_GANTTCHART>-BACKGROUND = 1.
<PHTMLB_GANTTCHART>-DISPLAYWEEKENDS = 1.
<PHTMLB_GANTTCHART>-ID = 1.
<PHTMLB_GANTTCHART>-RANGEENDDATE = 1.
<PHTMLB_GANTTCHART>-RANGEROWS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PHTMLB_GANTTCHART-RANGESTARTDATE, sy-vline,
  WA_PHTMLB_GANTTCHART-RANGETYPE, sy-vline,
  WA_PHTMLB_GANTTCHART-TITLE, sy-vline,
  WA_PHTMLB_GANTTCHART-VALIDATE, sy-vline,
  WA_PHTMLB_GANTTCHART-ONRANGEDOWN, sy-vline,
  WA_PHTMLB_GANTTCHART-ONRANGEUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PHTMLB_GANTTCHART 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 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 INTO WA_PHTMLB_GANTTCHART.


*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_STR, 
BACKGROUND TYPE STRING,
DISPLAYWEEKENDS TYPE STRING,
ID TYPE STRING,
RANGEENDDATE TYPE STRING,
RANGEROWS TYPE STRING,
RANGESTARTDATE TYPE STRING,
RANGETYPE TYPE STRING,
TITLE TYPE STRING,
VALIDATE TYPE STRING,
ONRANGEDOWN TYPE STRING,
ONRANGEUP TYPE STRING,
HIERARCHIES TYPE STRING,
LINEMARKERS TYPE STRING,
DEPENDENCIES TYPE STRING,
LEGENDS TYPE STRING,
ACTIVITIES TYPE STRING,
REGIONS TYPE STRING,
TEXTCOLUMNS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PHTMLB_GANTTCHART_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_STR-BACKGROUND sy-vline 
WA_PHTMLB_GANTTCHART_STR-DISPLAYWEEKENDS sy-vline 
WA_PHTMLB_GANTTCHART_STR-ID sy-vline 
WA_PHTMLB_GANTTCHART_STR-RANGEENDDATE sy-vline 
WA_PHTMLB_GANTTCHART_STR-RANGEROWS sy-vline 
WA_PHTMLB_GANTTCHART_STR-RANGESTARTDATE sy-vline 
WA_PHTMLB_GANTTCHART_STR-RANGETYPE sy-vline 
WA_PHTMLB_GANTTCHART_STR-TITLE sy-vline 
WA_PHTMLB_GANTTCHART_STR-VALIDATE sy-vline 
WA_PHTMLB_GANTTCHART_STR-ONRANGEDOWN sy-vline 
WA_PHTMLB_GANTTCHART_STR-ONRANGEUP sy-vline 
WA_PHTMLB_GANTTCHART_STR-HIERARCHIES sy-vline 
WA_PHTMLB_GANTTCHART_STR-LINEMARKERS sy-vline 
WA_PHTMLB_GANTTCHART_STR-DEPENDENCIES sy-vline 
WA_PHTMLB_GANTTCHART_STR-LEGENDS sy-vline 
WA_PHTMLB_GANTTCHART_STR-ACTIVITIES sy-vline 
WA_PHTMLB_GANTTCHART_STR-REGIONS sy-vline 
WA_PHTMLB_GANTTCHART_STR-TEXTCOLUMNS sy-vline      INTO ld_text SEPARATED BY SPACE.

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