ABAP Select data from SAP table PAE_HAEPCVC0_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAE_HAEPCVC0_DATA 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 PAE_HAEPCVC0_DATA. 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 PAE_HAEPCVC0_DATA 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_PAE_HAEPCVC0_DATA TYPE STANDARD TABLE OF PAE_HAEPCVC0_DATA,
      WA_PAE_HAEPCVC0_DATA TYPE PAE_HAEPCVC0_DATA,
      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: <PAE_HAEPCVC0_DATA> TYPE PAE_HAEPCVC0_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAE_HAEPCVC0_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAE_HAEPCVC0_DATA
  INTO TABLE IT_PAE_HAEPCVC0_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAE_HAEPCVC0_DATA
*  INTO TABLE @DATA(IT_PAE_HAEPCVC0_DATA2).
*--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_PAE_HAEPCVC0_DATA INDEX 1 INTO DATA(WA_PAE_HAEPCVC0_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAE_HAEPCVC0_DATA ASSIGNING <PAE_HAEPCVC0_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAE_HAEPCVC0_DATA>-BUKRS = 1.
<PAE_HAEPCVC0_DATA>-AECTX = 1.
<PAE_HAEPCVC0_DATA>-GPSER = 1.
<PAE_HAEPCVC0_DATA>-GYEAR = 1.
<PAE_HAEPCVC0_DATA>-GCMON = 1.

ENDLOOP.

LOOP AT IT_PAE_HAEPCVC0_DATA INTO WA_PAE_HAEPCVC0_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAE_HAEPCVC0_DATA-GPYER, sy-vline,
  WA_PAE_HAEPCVC0_DATA-GPMON, sy-vline,
  WA_PAE_HAEPCVC0_DATA-CMT_D, sy-vline,
  WA_PAE_HAEPCVC0_DATA-CMT_F, sy-vline,
  WA_PAE_HAEPCVC0_DATA-PMT_D, sy-vline,
  WA_PAE_HAEPCVC0_DATA-PMT_F, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAE_HAEPCVC0_DATA 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_PAE_HAEPCVC0_DATA 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_PAE_HAEPCVC0_DATA INTO WA_PAE_HAEPCVC0_DATA.


*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_PAE_HAEPCVC0_DATA_STR, 
BUKRS TYPE STRING,
AECTX TYPE STRING,
GPSER TYPE STRING,
GYEAR TYPE STRING,
GCMON TYPE STRING,
GPYER TYPE STRING,
GPMON TYPE STRING,
CMT_D TYPE STRING,
CMT_F TYPE STRING,
PMT_D TYPE STRING,
PMT_F TYPE STRING,
CHV_D TYPE STRING,
CHV_F TYPE STRING,
LGTX1 TYPE STRING,
TA1_D TYPE STRING,
TA1_F TYPE STRING,
LGTX2 TYPE STRING,
TA2_D TYPE STRING,
TA2_F TYPE STRING,
LGTX3 TYPE STRING,
TA3_D TYPE STRING,
TA3_F TYPE STRING,
LGTX4 TYPE STRING,
TA4_D TYPE STRING,
TA4_F TYPE STRING,
LGTX5 TYPE STRING,
TA5_D TYPE STRING,
TA5_F TYPE STRING,
LGTX6 TYPE STRING,
TA6_D TYPE STRING,
TA6_F TYPE STRING,
LGTX7 TYPE STRING,
TA7_D TYPE STRING,
TA7_F TYPE STRING,
TAL_D TYPE STRING,
TAL_F TYPE STRING,
TC1_D TYPE STRING,
TC1_F TYPE STRING,
TC2_D TYPE STRING,
TC2_F TYPE STRING,
T_SY1 TYPE STRING,
T_SY2 TYPE STRING,
T_SY3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAE_HAEPCVC0_DATA_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_PAE_HAEPCVC0_DATA_STR-BUKRS sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-AECTX sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-GPSER sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-GYEAR sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-GCMON sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-GPYER sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-GPMON sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-CMT_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-CMT_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-PMT_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-PMT_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-CHV_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-CHV_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX1 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA1_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA1_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX2 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA2_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA2_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX3 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA3_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA3_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX4 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA4_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA4_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX5 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA5_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA5_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX6 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA6_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA6_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-LGTX7 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA7_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TA7_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TAL_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TAL_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TC1_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TC1_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TC2_D sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-TC2_F sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-T_SY1 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-T_SY2 sy-vline 
WA_PAE_HAEPCVC0_DATA_STR-T_SY3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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