ABAP Select data from SAP table PEPPRJGDATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEPPRJGDATE
*  INTO TABLE @DATA(IT_PEPPRJGDATE2).
*--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_PEPPRJGDATE INDEX 1 INTO DATA(WA_PEPPRJGDATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEPPRJGDATE>-MANDT = 1.
<PEPPRJGDATE>-PROJECTUUID = 1.
<PEPPRJGDATE>-SIMILARPROJECTUUID = 1.
<PEPPRJGDATE>-PROJECTINTERNALID = 1.
<PEPPRJGDATE>-PROJECTPREDICTEDFACTOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEPPRJGDATE-PREDICTEDCOST, sy-vline,
  WA_PEPPRJGDATE-COMPANYCODE, sy-vline,
  WA_PEPPRJGDATE-PROJECT, sy-vline,
  WA_PEPPRJGDATE-CONTROLLINGAREA, sy-vline,
  WA_PEPPRJGDATE-GLACCOUNT, sy-vline,
  WA_PEPPRJGDATE-GLOBALCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEPPRJGDATE 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_PEPPRJGDATE 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_PEPPRJGDATE INTO WA_PEPPRJGDATE.


*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.

*Conversion exit ABPSN, internal->external for field PROJECT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PEPPRJGDATE-PROJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEPPRJGDATE-PROJECT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEPPRJGDATE-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEPPRJGDATE-GLACCOUNT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_PEPPRJGDATE_STR, 
MANDT TYPE STRING,
PROJECTUUID TYPE STRING,
SIMILARPROJECTUUID TYPE STRING,
PROJECTINTERNALID TYPE STRING,
PROJECTPREDICTEDFACTOR TYPE STRING,
PREDICTEDCOST TYPE STRING,
COMPANYCODE TYPE STRING,
PROJECT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
GLACCOUNT TYPE STRING,
GLOBALCURRENCY TYPE STRING,
NORMALIZEDCOSTDURATION TYPE STRING,
PROJECTISINEXECUTION TYPE STRING,
POSTINGDATE TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
PREDICTEDCOSTPOSTINGDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEPPRJGDATE_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_PEPPRJGDATE_STR-MANDT sy-vline 
WA_PEPPRJGDATE_STR-PROJECTUUID sy-vline 
WA_PEPPRJGDATE_STR-SIMILARPROJECTUUID sy-vline 
WA_PEPPRJGDATE_STR-PROJECTINTERNALID sy-vline 
WA_PEPPRJGDATE_STR-PROJECTPREDICTEDFACTOR sy-vline 
WA_PEPPRJGDATE_STR-PREDICTEDCOST sy-vline 
WA_PEPPRJGDATE_STR-COMPANYCODE sy-vline 
WA_PEPPRJGDATE_STR-PROJECT sy-vline 
WA_PEPPRJGDATE_STR-CONTROLLINGAREA sy-vline 
WA_PEPPRJGDATE_STR-GLACCOUNT sy-vline 
WA_PEPPRJGDATE_STR-GLOBALCURRENCY sy-vline 
WA_PEPPRJGDATE_STR-NORMALIZEDCOSTDURATION sy-vline 
WA_PEPPRJGDATE_STR-PROJECTISINEXECUTION sy-vline 
WA_PEPPRJGDATE_STR-POSTINGDATE sy-vline 
WA_PEPPRJGDATE_STR-FISCALYEARVARIANT sy-vline 
WA_PEPPRJGDATE_STR-PREDICTEDCOSTPOSTINGDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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