ABAP Select data from SAP table LQUA_VB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LQUA_VB
*  INTO TABLE @DATA(IT_LQUA_VB2).
*--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_LQUA_VB INDEX 1 INTO DATA(WA_LQUA_VB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LQUA_VB>-MANDT = 1.
<LQUA_VB>-LGNUM = 1.
<LQUA_VB>-LQNUM = 1.
<LQUA_VB>-MATNR = 1.
<LQUA_VB>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LQUA_VB-CHARG, sy-vline,
  WA_LQUA_VB-BESTQ, sy-vline,
  WA_LQUA_VB-SOBKZ, sy-vline,
  WA_LQUA_VB-SONUM, sy-vline,
  WA_LQUA_VB-LGTYP, sy-vline,
  WA_LQUA_VB-LGPLA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LQUA_VB 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_LQUA_VB 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_LQUA_VB INTO WA_LQUA_VB.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_LQUA_VB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LQUA_VB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LQUA_VB-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LQUA_VB-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LQUA_VB-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LQUA_VB-GEWEI.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit LENUM, internal->external for field LENUM
CALL FUNCTION 'CONVERSION_EXIT_LENUM_OUTPUT'
  EXPORTING
    input =                      WA_LQUA_VB-LENUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LQUA_VB-LENUM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field GEWEIP
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LQUA_VB-GEWEIP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LQUA_VB-GEWEIP.
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_LQUA_VB_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
LQNUM TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
PLPOS TYPE STRING,
SKZUE TYPE STRING,
SKZUA TYPE STRING,
SKZSE TYPE STRING,
SKZSA TYPE STRING,
SKZSI TYPE STRING,
SPGRU TYPE STRING,
ZEUGN TYPE STRING,
BDATU TYPE STRING,
BZEIT TYPE STRING,
BTANR TYPE STRING,
BTAPS TYPE STRING,
EDATU TYPE STRING,
EZEIT TYPE STRING,
ADATU TYPE STRING,
AZEIT TYPE STRING,
ZDATU TYPE STRING,
WDATU TYPE STRING,
WENUM TYPE STRING,
WEPOS TYPE STRING,
LETYP TYPE STRING,
MEINS TYPE STRING,
GESME TYPE STRING,
VERME TYPE STRING,
EINME TYPE STRING,
AUSME TYPE STRING,
MGEWI TYPE STRING,
GEWEI TYPE STRING,
TBNUM TYPE STRING,
IVNUM TYPE STRING,
IVPOS TYPE STRING,
BETYP TYPE STRING,
BENUM TYPE STRING,
LENUM TYPE STRING,
QPLOS TYPE STRING,
VFDAT TYPE STRING,
QKAPV TYPE STRING,
KOBER TYPE STRING,
LGORT TYPE STRING,
VIRGO TYPE STRING,
TRAME TYPE STRING,
KZHUQ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
IDATU TYPE STRING,
MSR_INSP_GUID TYPE STRING,
SGT_SCAT TYPE STRING,
KZTYP TYPE STRING,
SELKZ TYPE STRING,
SELMG TYPE STRING,
DAUER TYPE STRING,
VBLCH TYPE STRING,
VSUMM TYPE STRING,
LGPLA2 TYPE STRING,
CHARG2 TYPE STRING,
SELML TYPE STRING,
VERML TYPE STRING,
KZNEU TYPE STRING,
ZUSTD TYPE STRING,
LPTYP TYPE STRING,
SKZUAP TYPE STRING,
SKZUEP TYPE STRING,
SKZSAP TYPE STRING,
SKZSEP TYPE STRING,
SKZSIP TYPE STRING,
SPGRUP TYPE STRING,
LGEWIP TYPE STRING,
GEWEIP TYPE STRING,
MGEWIP TYPE STRING,
RKAPVP TYPE STRING,
LKAPVP TYPE STRING,
SKZUAL TYPE STRING,
SKZUEL TYPE STRING,
SPGRUL TYPE STRING,
STATUL TYPE STRING,
WESTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LQUA_VB_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_LQUA_VB_STR-MANDT sy-vline 
WA_LQUA_VB_STR-LGNUM sy-vline 
WA_LQUA_VB_STR-LQNUM sy-vline 
WA_LQUA_VB_STR-MATNR sy-vline 
WA_LQUA_VB_STR-WERKS sy-vline 
WA_LQUA_VB_STR-CHARG sy-vline 
WA_LQUA_VB_STR-BESTQ sy-vline 
WA_LQUA_VB_STR-SOBKZ sy-vline 
WA_LQUA_VB_STR-SONUM sy-vline 
WA_LQUA_VB_STR-LGTYP sy-vline 
WA_LQUA_VB_STR-LGPLA sy-vline 
WA_LQUA_VB_STR-PLPOS sy-vline 
WA_LQUA_VB_STR-SKZUE sy-vline 
WA_LQUA_VB_STR-SKZUA sy-vline 
WA_LQUA_VB_STR-SKZSE sy-vline 
WA_LQUA_VB_STR-SKZSA sy-vline 
WA_LQUA_VB_STR-SKZSI sy-vline 
WA_LQUA_VB_STR-SPGRU sy-vline 
WA_LQUA_VB_STR-ZEUGN sy-vline 
WA_LQUA_VB_STR-BDATU sy-vline 
WA_LQUA_VB_STR-BZEIT sy-vline 
WA_LQUA_VB_STR-BTANR sy-vline 
WA_LQUA_VB_STR-BTAPS sy-vline 
WA_LQUA_VB_STR-EDATU sy-vline 
WA_LQUA_VB_STR-EZEIT sy-vline 
WA_LQUA_VB_STR-ADATU sy-vline 
WA_LQUA_VB_STR-AZEIT sy-vline 
WA_LQUA_VB_STR-ZDATU sy-vline 
WA_LQUA_VB_STR-WDATU sy-vline 
WA_LQUA_VB_STR-WENUM sy-vline 
WA_LQUA_VB_STR-WEPOS sy-vline 
WA_LQUA_VB_STR-LETYP sy-vline 
WA_LQUA_VB_STR-MEINS sy-vline 
WA_LQUA_VB_STR-GESME sy-vline 
WA_LQUA_VB_STR-VERME sy-vline 
WA_LQUA_VB_STR-EINME sy-vline 
WA_LQUA_VB_STR-AUSME sy-vline 
WA_LQUA_VB_STR-MGEWI sy-vline 
WA_LQUA_VB_STR-GEWEI sy-vline 
WA_LQUA_VB_STR-TBNUM sy-vline 
WA_LQUA_VB_STR-IVNUM sy-vline 
WA_LQUA_VB_STR-IVPOS sy-vline 
WA_LQUA_VB_STR-BETYP sy-vline 
WA_LQUA_VB_STR-BENUM sy-vline 
WA_LQUA_VB_STR-LENUM sy-vline 
WA_LQUA_VB_STR-QPLOS sy-vline 
WA_LQUA_VB_STR-VFDAT sy-vline 
WA_LQUA_VB_STR-QKAPV sy-vline 
WA_LQUA_VB_STR-KOBER sy-vline 
WA_LQUA_VB_STR-LGORT sy-vline 
WA_LQUA_VB_STR-VIRGO sy-vline 
WA_LQUA_VB_STR-TRAME sy-vline 
WA_LQUA_VB_STR-KZHUQ sy-vline 
WA_LQUA_VB_STR-VBELN sy-vline 
WA_LQUA_VB_STR-POSNR sy-vline 
WA_LQUA_VB_STR-IDATU sy-vline 
WA_LQUA_VB_STR-MSR_INSP_GUID sy-vline 
WA_LQUA_VB_STR-SGT_SCAT sy-vline 
WA_LQUA_VB_STR-KZTYP sy-vline 
WA_LQUA_VB_STR-SELKZ sy-vline 
WA_LQUA_VB_STR-SELMG sy-vline 
WA_LQUA_VB_STR-DAUER sy-vline 
WA_LQUA_VB_STR-VBLCH sy-vline 
WA_LQUA_VB_STR-VSUMM sy-vline 
WA_LQUA_VB_STR-LGPLA2 sy-vline 
WA_LQUA_VB_STR-CHARG2 sy-vline 
WA_LQUA_VB_STR-SELML sy-vline 
WA_LQUA_VB_STR-VERML sy-vline 
WA_LQUA_VB_STR-KZNEU sy-vline 
WA_LQUA_VB_STR-ZUSTD sy-vline 
WA_LQUA_VB_STR-LPTYP sy-vline 
WA_LQUA_VB_STR-SKZUAP sy-vline 
WA_LQUA_VB_STR-SKZUEP sy-vline 
WA_LQUA_VB_STR-SKZSAP sy-vline 
WA_LQUA_VB_STR-SKZSEP sy-vline 
WA_LQUA_VB_STR-SKZSIP sy-vline 
WA_LQUA_VB_STR-SPGRUP sy-vline 
WA_LQUA_VB_STR-LGEWIP sy-vline 
WA_LQUA_VB_STR-GEWEIP sy-vline 
WA_LQUA_VB_STR-MGEWIP sy-vline 
WA_LQUA_VB_STR-RKAPVP sy-vline 
WA_LQUA_VB_STR-LKAPVP sy-vline 
WA_LQUA_VB_STR-SKZUAL sy-vline 
WA_LQUA_VB_STR-SKZUEL sy-vline 
WA_LQUA_VB_STR-SPGRUL sy-vline 
WA_LQUA_VB_STR-STATUL sy-vline 
WA_LQUA_VB_STR-WESTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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