ABAP Select data from SAP table VJHAMEZ into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VJHAMEZ
*  INTO TABLE @DATA(IT_VJHAMEZ2).
*--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_VJHAMEZ INDEX 1 INTO DATA(WA_VJHAMEZ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VJHAMEZ>-MANDT = 1.
<VJHAMEZ>-AVM_NR = 1.
<VJHAMEZ>-POS_NR = 1.
<VJHAMEZ>-BELEGEINH = 1.
<VJHAMEZ>-ERSCH_T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VJHAMEZ-E_HEFT, sy-vline,
  WA_VJHAMEZ-INHK_TECH1, sy-vline,
  WA_VJHAMEZ-INHK_TLEV1, sy-vline,
  WA_VJHAMEZ-INHK_SOVER, sy-vline,
  WA_VJHAMEZ-XOWN_MOTIV, sy-vline,
  WA_VJHAMEZ-XMOTIVDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VJHAMEZ 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_VJHAMEZ 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_VJHAMEZ INTO WA_VJHAMEZ.


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

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

*Conversion exit ALPHA, internal->external for field INHK_TECH1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJHAMEZ-INHK_TECH1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAMEZ-INHK_TECH1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INHK_TLEV1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJHAMEZ-INHK_TLEV1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAMEZ-INHK_TLEV1.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field UR_BELEINH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VJHAMEZ-UR_BELEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VJHAMEZ-UR_BELEINH.
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_VJHAMEZ_STR, 
MANDT TYPE STRING,
AVM_NR TYPE STRING,
POS_NR TYPE STRING,
BELEGEINH TYPE STRING,
ERSCH_T TYPE STRING,
E_HEFT TYPE STRING,
INHK_TECH1 TYPE STRING,
INHK_TLEV1 TYPE STRING,
INHK_SOVER TYPE STRING,
XOWN_MOTIV TYPE STRING,
XMOTIVDAT TYPE STRING,
UR_BELEINH TYPE STRING,
E_TERM_KOM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VJHAMEZ_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_VJHAMEZ_STR-MANDT sy-vline 
WA_VJHAMEZ_STR-AVM_NR sy-vline 
WA_VJHAMEZ_STR-POS_NR sy-vline 
WA_VJHAMEZ_STR-BELEGEINH sy-vline 
WA_VJHAMEZ_STR-ERSCH_T sy-vline 
WA_VJHAMEZ_STR-E_HEFT sy-vline 
WA_VJHAMEZ_STR-INHK_TECH1 sy-vline 
WA_VJHAMEZ_STR-INHK_TLEV1 sy-vline 
WA_VJHAMEZ_STR-INHK_SOVER sy-vline 
WA_VJHAMEZ_STR-XOWN_MOTIV sy-vline 
WA_VJHAMEZ_STR-XMOTIVDAT sy-vline 
WA_VJHAMEZ_STR-UR_BELEINH sy-vline 
WA_VJHAMEZ_STR-E_TERM_KOM sy-vline 
WA_VJHAMEZ_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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