ABAP Select data from SAP table /ISDFPS/E1VIQMEL1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/E1VIQMEL1 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 /ISDFPS/E1VIQMEL1. 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 /ISDFPS/E1VIQMEL1 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_/ISDFPS/E1VIQMEL1 TYPE STANDARD TABLE OF /ISDFPS/E1VIQMEL1,
      WA_/ISDFPS/E1VIQMEL1 TYPE /ISDFPS/E1VIQMEL1,
      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: </ISDFPS/E1VIQMEL1> TYPE /ISDFPS/E1VIQMEL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/E1VIQMEL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/E1VIQMEL1
  INTO TABLE IT_/ISDFPS/E1VIQMEL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/E1VIQMEL1
*  INTO TABLE @DATA(IT_/ISDFPS/E1VIQMEL12).
*--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_/ISDFPS/E1VIQMEL1 INDEX 1 INTO DATA(WA_/ISDFPS/E1VIQMEL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/E1VIQMEL1 ASSIGNING </ISDFPS/E1VIQMEL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/E1VIQMEL1>-RGMNG = 1.
</ISDFPS/E1VIQMEL1>-RKDAT = 1.
</ISDFPS/E1VIQMEL1>-COAUFNR = 1.
</ISDFPS/E1VIQMEL1>-QWRNUM = 1.
</ISDFPS/E1VIQMEL1>-REFNUM = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/E1VIQMEL1 INTO WA_/ISDFPS/E1VIQMEL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/E1VIQMEL1-KDMAT, sy-vline,
  WA_/ISDFPS/E1VIQMEL1-IDNLF, sy-vline,
  WA_/ISDFPS/E1VIQMEL1-SERIALNR, sy-vline,
  WA_/ISDFPS/E1VIQMEL1-KZLOESCH, sy-vline,
  WA_/ISDFPS/E1VIQMEL1-PRODDAT, sy-vline,
  WA_/ISDFPS/E1VIQMEL1-DEVICEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/E1VIQMEL1 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_/ISDFPS/E1VIQMEL1 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_/ISDFPS/E1VIQMEL1 INTO WA_/ISDFPS/E1VIQMEL1.


*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_/ISDFPS/E1VIQMEL1_STR, 
RGMNG TYPE STRING,
RKDAT TYPE STRING,
COAUFNR TYPE STRING,
QWRNUM TYPE STRING,
REFNUM TYPE STRING,
KDMAT TYPE STRING,
IDNLF TYPE STRING,
SERIALNR TYPE STRING,
KZLOESCH TYPE STRING,
PRODDAT TYPE STRING,
DEVICEID TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
AUTKZ TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
PROFIL_TYP TYPE STRING,
PROFIL_ID TYPE STRING,
HANDLE TYPE STRING,
TSEGFL TYPE STRING,
TSEGTP TYPE STRING,
TZONSO TYPE STRING,
TZONID TYPE STRING,
FUNKTION TYPE STRING,
PSP_NR TYPE STRING,
ESTIMATED_COSTS TYPE STRING,
CLAIMED_COSTS TYPE STRING,
RESULT_COSTS TYPE STRING,
CHANCE TYPE STRING,
OPPONENT TYPE STRING,
KALNR TYPE STRING,
KALVAR TYPE STRING,
OBJNR_REAL TYPE STRING,
OBJNR_STAT TYPE STRING,
PHASE TYPE STRING,
/ISDFPS/OBJNR TYPE STRING,
LOGSYSTEM TYPE STRING,
/ISDFPS/MEQUI TYPE STRING,
TPLNR TYPE STRING,
ABCKZ TYPE STRING,
EQFNR TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
PPSID TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
PROID TYPE STRING,
ANLNR TYPE STRING,
ANLUN TYPE STRING,
DAUFN TYPE STRING,
KAUFN TYPE STRING,
BUKRS TYPE STRING,
ABCKZI TYPE STRING,
EQFNRI TYPE STRING,
SWERKI TYPE STRING,
STORTI TYPE STRING,
MSGRPI TYPE STRING,
BEBERI TYPE STRING,
CR_OBJTY TYPE STRING,
PPSIDI TYPE STRING,
GSBERI TYPE STRING,
KOKRSI TYPE STRING,
KOSTLI TYPE STRING,
PROIDI TYPE STRING,
BUKRSI TYPE STRING,
ANLNRI TYPE STRING,
ANLUNI TYPE STRING,
DAUFNI TYPE STRING,
AUFNRI TYPE STRING,
SPART_ILOA TYPE STRING,
VTWEG_ILOA TYPE STRING,
SPARTI TYPE STRING,
VTWEGI TYPE STRING,
VKORGI TYPE STRING,
VKORG_ILOA TYPE STRING,
ADRNR_ILOA TYPE STRING,
OWNER TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
/ISDFPS/MHIO_ADDATE TYPE STRING,
/ISDFPS/MHIO_ADTIME TYPE STRING,
/ISDFPS/USERMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/E1VIQMEL1_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_/ISDFPS/E1VIQMEL1_STR-RGMNG sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-RKDAT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-COAUFNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-QWRNUM sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-REFNUM sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KDMAT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-IDNLF sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-SERIALNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KZLOESCH sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PRODDAT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-DEVICEID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VKBUR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VKGRP sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-AUTKZ sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BEDID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BEDZL sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PROFIL_TYP sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PROFIL_ID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-HANDLE sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-TSEGFL sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-TSEGTP sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-TZONSO sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-TZONID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-FUNKTION sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PSP_NR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ESTIMATED_COSTS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-CLAIMED_COSTS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-RESULT_COSTS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-CHANCE sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-OPPONENT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KALNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KALVAR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-OBJNR_REAL sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-OBJNR_STAT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PHASE sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-/ISDFPS/OBJNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-LOGSYSTEM sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-/ISDFPS/MEQUI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-TPLNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ABCKZ sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-EQFNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-SWERK sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-STORT sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-MSGRP sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BEBER sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PPSID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-GSBER sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KOKRS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KOSTL sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PROID sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ANLNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ANLUN sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-DAUFN sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KAUFN sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BUKRS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ABCKZI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-EQFNRI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-SWERKI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-STORTI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-MSGRPI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BEBERI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-CR_OBJTY sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PPSIDI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-GSBERI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KOKRSI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KOSTLI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PROIDI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-BUKRSI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ANLNRI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ANLUNI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-DAUFNI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-AUFNRI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-SPART_ILOA sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VTWEG_ILOA sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-SPARTI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VTWEGI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VKORGI sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-VKORG_ILOA sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-ADRNR_ILOA sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-OWNER sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KDAUF sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-KDPOS sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PLNTY sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PLNNR sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-PLNAL sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-/ISDFPS/MHIO_ADDATE sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-/ISDFPS/MHIO_ADTIME sy-vline 
WA_/ISDFPS/E1VIQMEL1_STR-/ISDFPS/USERMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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