ABAP Select data from SAP table CRMALLQNAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMALLQNAM
*  INTO TABLE @DATA(IT_CRMALLQNAM2).
*--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_CRMALLQNAM INDEX 1 INTO DATA(WA_CRMALLQNAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMALLQNAM>-CONSUMER = 1.
<CRMALLQNAM>-OBJNAME = 1.
<CRMALLQNAM>-SORT_ORDER = 1.
<CRMALLQNAM>-BAPISTRUCT = 1.
<CRMALLQNAM>-QOBJPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMALLQNAM-BAPIFLD, sy-vline,
  WA_CRMALLQNAM-BAPIOFFSET, sy-vline,
  WA_CRMALLQNAM-BAPIFLDLEN, sy-vline,
  WA_CRMALLQNAM-FTCHTABLE, sy-vline,
  WA_CRMALLQNAM-FTCHRELFLD, sy-vline,
  WA_CRMALLQNAM-FTCHFLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMALLQNAM 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_CRMALLQNAM 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_CRMALLQNAM INTO WA_CRMALLQNAM.


*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_CRMALLQNAM_STR, 
CONSUMER TYPE STRING,
OBJNAME TYPE STRING,
SORT_ORDER TYPE STRING,
BAPISTRUCT TYPE STRING,
QOBJPART TYPE STRING,
BAPIFLD TYPE STRING,
BAPIOFFSET TYPE STRING,
BAPIFLDLEN TYPE STRING,
FTCHTABLE TYPE STRING,
FTCHRELFLD TYPE STRING,
FTCHFLD TYPE STRING,
FLDOFFSET TYPE STRING,
LENGTH TYPE STRING,
INACTIVE TYPE STRING,
QNAMESKEY TYPE STRING,
OBJCLASS TYPE STRING,
MAPTABKEY TYPE STRING,
OBJPART TYPE STRING,
SEGNAME TYPE STRING,
SEGFIELD TYPE STRING,
SEGFLDOFF TYPE STRING,
SEGFLDLEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMALLQNAM_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_CRMALLQNAM_STR-CONSUMER sy-vline 
WA_CRMALLQNAM_STR-OBJNAME sy-vline 
WA_CRMALLQNAM_STR-SORT_ORDER sy-vline 
WA_CRMALLQNAM_STR-BAPISTRUCT sy-vline 
WA_CRMALLQNAM_STR-QOBJPART sy-vline 
WA_CRMALLQNAM_STR-BAPIFLD sy-vline 
WA_CRMALLQNAM_STR-BAPIOFFSET sy-vline 
WA_CRMALLQNAM_STR-BAPIFLDLEN sy-vline 
WA_CRMALLQNAM_STR-FTCHTABLE sy-vline 
WA_CRMALLQNAM_STR-FTCHRELFLD sy-vline 
WA_CRMALLQNAM_STR-FTCHFLD sy-vline 
WA_CRMALLQNAM_STR-FLDOFFSET sy-vline 
WA_CRMALLQNAM_STR-LENGTH sy-vline 
WA_CRMALLQNAM_STR-INACTIVE sy-vline 
WA_CRMALLQNAM_STR-QNAMESKEY sy-vline 
WA_CRMALLQNAM_STR-OBJCLASS sy-vline 
WA_CRMALLQNAM_STR-MAPTABKEY sy-vline 
WA_CRMALLQNAM_STR-OBJPART sy-vline 
WA_CRMALLQNAM_STR-SEGNAME sy-vline 
WA_CRMALLQNAM_STR-SEGFIELD sy-vline 
WA_CRMALLQNAM_STR-SEGFLDOFF sy-vline 
WA_CRMALLQNAM_STR-SEGFLDLEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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