ABAP Select data from SAP table PQAP_HQAPEPP0_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PQAP_HQAPEPP0_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 PQAP_HQAPEPP0_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 PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_DATA TYPE STANDARD TABLE OF PQAP_HQAPEPP0_DATA,
      WA_PQAP_HQAPEPP0_DATA TYPE PQAP_HQAPEPP0_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: <PQAP_HQAPEPP0_DATA> TYPE PQAP_HQAPEPP0_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PQAP_HQAPEPP0_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PQAP_HQAPEPP0_DATA
  INTO TABLE IT_PQAP_HQAPEPP0_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PQAP_HQAPEPP0_DATA
*  INTO TABLE @DATA(IT_PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_DATA INDEX 1 INTO DATA(WA_PQAP_HQAPEPP0_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PQAP_HQAPEPP0_DATA ASSIGNING <PQAP_HQAPEPP0_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PQAP_HQAPEPP0_DATA>-PERNR = 1.
<PQAP_HQAPEPP0_DATA>-ENAME = 1.
<PQAP_HQAPEPP0_DATA>-PLANS = 1.
<PQAP_HQAPEPP0_DATA>-POSNM = 1.
<PQAP_HQAPEPP0_DATA>-JOBID = 1.

ENDLOOP.

LOOP AT IT_PQAP_HQAPEPP0_DATA INTO WA_PQAP_HQAPEPP0_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PQAP_HQAPEPP0_DATA-JOBNM, sy-vline,
  WA_PQAP_HQAPEPP0_DATA-EJGRD, sy-vline,
  WA_PQAP_HQAPEPP0_DATA-ADCDG, sy-vline,
  WA_PQAP_HQAPEPP0_DATA-ADCDT, sy-vline,
  WA_PQAP_HQAPEPP0_DATA-ARANK, sy-vline,
  WA_PQAP_HQAPEPP0_DATA-RANKT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_DATA INTO WA_PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_DATA_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
PLANS TYPE STRING,
POSNM TYPE STRING,
JOBID TYPE STRING,
JOBNM TYPE STRING,
EJGRD TYPE STRING,
ADCDG TYPE STRING,
ADCDT TYPE STRING,
ARANK TYPE STRING,
RANKT TYPE STRING,
SRVYR TYPE STRING,
SRVMT TYPE STRING,
SRVDA TYPE STRING,
HRDAT TYPE STRING,
VANQU TYPE STRING,
VACAN TYPE STRING,
PLANS_TO TYPE STRING,
POSNM_TO TYPE STRING,
JOBID_TO TYPE STRING,
JOBNM_TO TYPE STRING,
GRADE_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PQAP_HQAPEPP0_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_PQAP_HQAPEPP0_DATA_STR-PERNR sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-ENAME sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-PLANS sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-POSNM sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-JOBID sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-JOBNM sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-EJGRD sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-ADCDG sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-ADCDT sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-ARANK sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-RANKT sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-SRVYR sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-SRVMT sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-SRVDA sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-HRDAT sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-VANQU sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-VACAN sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-PLANS_TO sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-POSNM_TO sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-JOBID_TO sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-JOBNM_TO sy-vline 
WA_PQAP_HQAPEPP0_DATA_STR-GRADE_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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