ABAP Select data from SAP table JVA_JVHEADER_UPD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JVA_JVHEADER_UPD
*  INTO TABLE @DATA(IT_JVA_JVHEADER_UPD2).
*--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_JVA_JVHEADER_UPD INDEX 1 INTO DATA(WA_JVA_JVHEADER_UPD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JVA_JVHEADER_UPD>-COMPANYCODE = 1.
<JVA_JVHEADER_UPD>-JOINTVENTURE = 1.
<JVA_JVHEADER_UPD>-JOINTVENTUREPAYMENTTERMS = 1.
<JVA_JVHEADER_UPD>-JOINTVENTUREPAYMENTTERMSX = 1.
<JVA_JVHEADER_UPD>-JOINTVENTUREBILLINGTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JVA_JVHEADER_UPD-JOINTVENTUREBILLINGTYPEX, sy-vline,
  WA_JVA_JVHEADER_UPD-JOINTVENTURETYPE, sy-vline,
  WA_JVA_JVHEADER_UPD-JOINTVENTURETYPEX, sy-vline,
  WA_JVA_JVHEADER_UPD-JOINTVENTUREOPERATOR, sy-vline,
  WA_JVA_JVHEADER_UPD-JOINTVENTUREOPERATORX, sy-vline,
  WA_JVA_JVHEADER_UPD-JOINTVENTURECLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JVA_JVHEADER_UPD 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_JVA_JVHEADER_UPD 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_JVA_JVHEADER_UPD INTO WA_JVA_JVHEADER_UPD.


*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 JOINTVENTURE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVA_JVHEADER_UPD-JOINTVENTURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVA_JVHEADER_UPD-JOINTVENTURE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field JNTOPGAGRMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVA_JVHEADER_UPD-JNTOPGAGRMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVA_JVHEADER_UPD-JNTOPGAGRMT.
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_JVA_JVHEADER_UPD_STR, 
COMPANYCODE TYPE STRING,
JOINTVENTURE TYPE STRING,
JOINTVENTUREPAYMENTTERMS TYPE STRING,
JOINTVENTUREPAYMENTTERMSX TYPE STRING,
JOINTVENTUREBILLINGTYPE TYPE STRING,
JOINTVENTUREBILLINGTYPEX TYPE STRING,
JOINTVENTURETYPE TYPE STRING,
JOINTVENTURETYPEX TYPE STRING,
JOINTVENTUREOPERATOR TYPE STRING,
JOINTVENTUREOPERATORX TYPE STRING,
JOINTVENTURECLASS TYPE STRING,
JOINTVENTURECLASSX TYPE STRING,
JNTOPGAGRMT TYPE STRING,
JNTOPGAGRMTX TYPE STRING,
JNTVNTRBILLGCUTBACKISBLK TYPE STRING,
JNTVNTRBILLGCUTBACKISBLKX TYPE STRING,
JNTVNTRINCEPTIONTODATEDATA TYPE STRING,
JNTVNTRINCEPTIONTODATEDATAX TYPE STRING,
JNTVNTRCURRENTMONTHBILLG TYPE STRING,
JNTVNTRCURRENTMONTHBILLGX TYPE STRING,
JNTVNTRYEARTODATEBILLG TYPE STRING,
JNTVNTRYEARTODATEBILLGX TYPE STRING,
JNTVNTRINCEPTIONTODATEBILLG TYPE STRING,
JNTVNTRINCEPTIONTODATEBILLGX TYPE STRING,
JNTVNTRFUNDINGGROUP TYPE STRING,
JNTVNTRFUNDINGGROUPX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JVA_JVHEADER_UPD_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_JVA_JVHEADER_UPD_STR-COMPANYCODE sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTURE sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREPAYMENTTERMS sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREPAYMENTTERMSX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREBILLINGTYPE sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREBILLINGTYPEX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTURETYPE sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTURETYPEX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREOPERATOR sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTUREOPERATORX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTURECLASS sy-vline 
WA_JVA_JVHEADER_UPD_STR-JOINTVENTURECLASSX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTOPGAGRMT sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTOPGAGRMTX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRBILLGCUTBACKISBLK sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRBILLGCUTBACKISBLKX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRINCEPTIONTODATEDATA sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRINCEPTIONTODATEDATAX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRCURRENTMONTHBILLG sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRCURRENTMONTHBILLGX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRYEARTODATEBILLG sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRYEARTODATEBILLGX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRINCEPTIONTODATEBILLG sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRINCEPTIONTODATEBILLGX sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRFUNDINGGROUP sy-vline 
WA_JVA_JVHEADER_UPD_STR-JNTVNTRFUNDINGGROUPX sy-vline      INTO ld_text SEPARATED BY SPACE.

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