ABAP Select data from SAP table QAMAS_TASK_MAP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QAMAS_TASK_MAP
*  INTO TABLE @DATA(IT_QAMAS_TASK_MAP2).
*--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_QAMAS_TASK_MAP INDEX 1 INTO DATA(WA_QAMAS_TASK_MAP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QAMAS_TASK_MAP>-QMNUM = 1.
<QAMAS_TASK_MAP>-MANUM = 1.
<QAMAS_TASK_MAP>-MATXT = 1.
<QAMAS_TASK_MAP>-ERDAT = 1.
<QAMAS_TASK_MAP>-AEDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QAMAS_TASK_MAP-INDTX, sy-vline,
  WA_QAMAS_TASK_MAP-CODE_COMBINED, sy-vline,
  WA_QAMAS_TASK_MAP-MNKAT, sy-vline,
  WA_QAMAS_TASK_MAP-MNGRP, sy-vline,
  WA_QAMAS_TASK_MAP-MNCOD, sy-vline,
  WA_QAMAS_TASK_MAP-MNCODTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QAMAS_TASK_MAP 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_QAMAS_TASK_MAP 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_QAMAS_TASK_MAP INTO WA_QAMAS_TASK_MAP.


*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_QAMAS_TASK_MAP_STR, 
QMNUM TYPE STRING,
MANUM TYPE STRING,
MATXT TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
INDTX TYPE STRING,
CODE_COMBINED TYPE STRING,
MNKAT TYPE STRING,
MNGRP TYPE STRING,
MNCOD TYPE STRING,
MNCODTX TYPE STRING,
PRIOK TYPE STRING,
PRIO_TXT TYPE STRING,
PSTER TYPE STRING,
PETER TYPE STRING,
QMART TYPE STRING,
QMART_TXT TYPE STRING,
OBJNR TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
MAWERK TYPE STRING,
WERK_TXT TYPE STRING,
LIFNUM TYPE STRING,
LIF_NAME TYPE STRING,
KUNUM TYPE STRING,
KUN_NAME TYPE STRING,
PARNR TYPE STRING,
PARNR_NAME TYPE STRING,
FENUM TYPE STRING,
URNUM TYPE STRING,
PARENT_QI_ID TYPE STRING,
STAT TYPE STRING,
ADDITIONAL_STATUS TYPE STRING,
MORE_THAN_ONE_MAT_IND TYPE STRING,
MORE_THAN_ONE_CUST_IND TYPE STRING,
MORE_THAN_ONE_VEND_IND TYPE STRING,
CATEGORY TYPE STRING,
LOGSYS TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
PSP_NR TYPE STRING,
EQKTX TYPE STRING,
PLTXT TYPE STRING,
PSP_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QAMAS_TASK_MAP_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_QAMAS_TASK_MAP_STR-QMNUM sy-vline 
WA_QAMAS_TASK_MAP_STR-MANUM sy-vline 
WA_QAMAS_TASK_MAP_STR-MATXT sy-vline 
WA_QAMAS_TASK_MAP_STR-ERDAT sy-vline 
WA_QAMAS_TASK_MAP_STR-AEDAT sy-vline 
WA_QAMAS_TASK_MAP_STR-INDTX sy-vline 
WA_QAMAS_TASK_MAP_STR-CODE_COMBINED sy-vline 
WA_QAMAS_TASK_MAP_STR-MNKAT sy-vline 
WA_QAMAS_TASK_MAP_STR-MNGRP sy-vline 
WA_QAMAS_TASK_MAP_STR-MNCOD sy-vline 
WA_QAMAS_TASK_MAP_STR-MNCODTX sy-vline 
WA_QAMAS_TASK_MAP_STR-PRIOK sy-vline 
WA_QAMAS_TASK_MAP_STR-PRIO_TXT sy-vline 
WA_QAMAS_TASK_MAP_STR-PSTER sy-vline 
WA_QAMAS_TASK_MAP_STR-PETER sy-vline 
WA_QAMAS_TASK_MAP_STR-QMART sy-vline 
WA_QAMAS_TASK_MAP_STR-QMART_TXT sy-vline 
WA_QAMAS_TASK_MAP_STR-OBJNR sy-vline 
WA_QAMAS_TASK_MAP_STR-MATNR sy-vline 
WA_QAMAS_TASK_MAP_STR-MAKTX sy-vline 
WA_QAMAS_TASK_MAP_STR-MAWERK sy-vline 
WA_QAMAS_TASK_MAP_STR-WERK_TXT sy-vline 
WA_QAMAS_TASK_MAP_STR-LIFNUM sy-vline 
WA_QAMAS_TASK_MAP_STR-LIF_NAME sy-vline 
WA_QAMAS_TASK_MAP_STR-KUNUM sy-vline 
WA_QAMAS_TASK_MAP_STR-KUN_NAME sy-vline 
WA_QAMAS_TASK_MAP_STR-PARNR sy-vline 
WA_QAMAS_TASK_MAP_STR-PARNR_NAME sy-vline 
WA_QAMAS_TASK_MAP_STR-FENUM sy-vline 
WA_QAMAS_TASK_MAP_STR-URNUM sy-vline 
WA_QAMAS_TASK_MAP_STR-PARENT_QI_ID sy-vline 
WA_QAMAS_TASK_MAP_STR-STAT sy-vline 
WA_QAMAS_TASK_MAP_STR-ADDITIONAL_STATUS sy-vline 
WA_QAMAS_TASK_MAP_STR-MORE_THAN_ONE_MAT_IND sy-vline 
WA_QAMAS_TASK_MAP_STR-MORE_THAN_ONE_CUST_IND sy-vline 
WA_QAMAS_TASK_MAP_STR-MORE_THAN_ONE_VEND_IND sy-vline 
WA_QAMAS_TASK_MAP_STR-CATEGORY sy-vline 
WA_QAMAS_TASK_MAP_STR-LOGSYS sy-vline 
WA_QAMAS_TASK_MAP_STR-EQUNR sy-vline 
WA_QAMAS_TASK_MAP_STR-TPLNR sy-vline 
WA_QAMAS_TASK_MAP_STR-PSP_NR sy-vline 
WA_QAMAS_TASK_MAP_STR-EQKTX sy-vline 
WA_QAMAS_TASK_MAP_STR-PLTXT sy-vline 
WA_QAMAS_TASK_MAP_STR-PSP_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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