ABAP Select data from SAP table JVB01 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JVB01 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 JVB01. 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 JVB01 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_JVB01 TYPE STANDARD TABLE OF JVB01,
      WA_JVB01 TYPE JVB01,
      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: <JVB01> TYPE JVB01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JVB01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JVB01
  INTO TABLE IT_JVB01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JVB01
*  INTO TABLE @DATA(IT_JVB012).
*--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_JVB01 INDEX 1 INTO DATA(WA_JVB012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JVB01 ASSIGNING <JVB01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JVB01>-RCLNT = 1.
<JVB01>-ID = 1.
<JVB01>-RYEAR = 1.
<JVB01>-POPER = 1.
<JVB01>-RBUKRS = 1.

ENDLOOP.

LOOP AT IT_JVB01 INTO WA_JVB01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JVB01-VPTNR, sy-vline,
  WA_JVB01-PS_PSP_PNR, sy-vline,
  WA_JVB01-ETYPE, sy-vline,
  WA_JVB01-EGRUP, sy-vline,
  WA_JVB01-VNAME, sy-vline,
  WA_JVB01-BTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JVB01 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_JVB01 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_JVB01 INTO WA_JVB01.


*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 GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-VPTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-VPTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ETYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-ETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-ETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVB01-BTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVB01-BTYPE.
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_JVB01_STR, 
RCLNT TYPE STRING,
ID TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
RBUKRS TYPE STRING,
VPTNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
ETYPE TYPE STRING,
EGRUP TYPE STRING,
VNAME TYPE STRING,
BTYPE TYPE STRING,
FUNDING_CURRENCY TYPE STRING,
SDS TYPE STRING,
ORSDS TYPE STRING,
FCURR_PTD TYPE STRING,
FCURR_YTD TYPE STRING,
FCURR_ITD TYPE STRING,
RWCUR TYPE STRING,
WSL_PTD TYPE STRING,
WSL_YTD TYPE STRING,
WSL_ITD TYPE STRING,
RHCUR TYPE STRING,
HSL_PTD TYPE STRING,
HSL_YTD TYPE STRING,
HSL_ITD TYPE STRING,
RKCUR TYPE STRING,
KSL_PTD TYPE STRING,
KSL_YTD TYPE STRING,
KSL_ITD TYPE STRING,
ROCUR TYPE STRING,
OSL_PTD TYPE STRING,
OSL_YTD TYPE STRING,
OSL_ITD TYPE STRING,
RVCUR TYPE STRING,
VSL_PTD TYPE STRING,
VSL_YTD TYPE STRING,
VSL_ITD TYPE STRING,
RBCUR TYPE STRING,
BSL_PTD TYPE STRING,
BSL_YTD TYPE STRING,
BSL_ITD TYPE STRING,
RCCUR TYPE STRING,
CSL_PTD TYPE STRING,
CSL_YTD TYPE STRING,
CSL_ITD TYPE STRING,
RDCUR TYPE STRING,
DSL_PTD TYPE STRING,
DSL_YTD TYPE STRING,
DSL_ITD TYPE STRING,
RECUR TYPE STRING,
ESL_PTD TYPE STRING,
ESL_YTD TYPE STRING,
ESL_ITD TYPE STRING,
RFCUR TYPE STRING,
FSL_PTD TYPE STRING,
FSL_YTD TYPE STRING,
FSL_ITD TYPE STRING,
RGCUR TYPE STRING,
GSL_PTD TYPE STRING,
GSL_YTD TYPE STRING,
GSL_ITD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JVB01_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_JVB01_STR-RCLNT sy-vline 
WA_JVB01_STR-ID sy-vline 
WA_JVB01_STR-RYEAR sy-vline 
WA_JVB01_STR-POPER sy-vline 
WA_JVB01_STR-RBUKRS sy-vline 
WA_JVB01_STR-VPTNR sy-vline 
WA_JVB01_STR-PS_PSP_PNR sy-vline 
WA_JVB01_STR-ETYPE sy-vline 
WA_JVB01_STR-EGRUP sy-vline 
WA_JVB01_STR-VNAME sy-vline 
WA_JVB01_STR-BTYPE sy-vline 
WA_JVB01_STR-FUNDING_CURRENCY sy-vline 
WA_JVB01_STR-SDS sy-vline 
WA_JVB01_STR-ORSDS sy-vline 
WA_JVB01_STR-FCURR_PTD sy-vline 
WA_JVB01_STR-FCURR_YTD sy-vline 
WA_JVB01_STR-FCURR_ITD sy-vline 
WA_JVB01_STR-RWCUR sy-vline 
WA_JVB01_STR-WSL_PTD sy-vline 
WA_JVB01_STR-WSL_YTD sy-vline 
WA_JVB01_STR-WSL_ITD sy-vline 
WA_JVB01_STR-RHCUR sy-vline 
WA_JVB01_STR-HSL_PTD sy-vline 
WA_JVB01_STR-HSL_YTD sy-vline 
WA_JVB01_STR-HSL_ITD sy-vline 
WA_JVB01_STR-RKCUR sy-vline 
WA_JVB01_STR-KSL_PTD sy-vline 
WA_JVB01_STR-KSL_YTD sy-vline 
WA_JVB01_STR-KSL_ITD sy-vline 
WA_JVB01_STR-ROCUR sy-vline 
WA_JVB01_STR-OSL_PTD sy-vline 
WA_JVB01_STR-OSL_YTD sy-vline 
WA_JVB01_STR-OSL_ITD sy-vline 
WA_JVB01_STR-RVCUR sy-vline 
WA_JVB01_STR-VSL_PTD sy-vline 
WA_JVB01_STR-VSL_YTD sy-vline 
WA_JVB01_STR-VSL_ITD sy-vline 
WA_JVB01_STR-RBCUR sy-vline 
WA_JVB01_STR-BSL_PTD sy-vline 
WA_JVB01_STR-BSL_YTD sy-vline 
WA_JVB01_STR-BSL_ITD sy-vline 
WA_JVB01_STR-RCCUR sy-vline 
WA_JVB01_STR-CSL_PTD sy-vline 
WA_JVB01_STR-CSL_YTD sy-vline 
WA_JVB01_STR-CSL_ITD sy-vline 
WA_JVB01_STR-RDCUR sy-vline 
WA_JVB01_STR-DSL_PTD sy-vline 
WA_JVB01_STR-DSL_YTD sy-vline 
WA_JVB01_STR-DSL_ITD sy-vline 
WA_JVB01_STR-RECUR sy-vline 
WA_JVB01_STR-ESL_PTD sy-vline 
WA_JVB01_STR-ESL_YTD sy-vline 
WA_JVB01_STR-ESL_ITD sy-vline 
WA_JVB01_STR-RFCUR sy-vline 
WA_JVB01_STR-FSL_PTD sy-vline 
WA_JVB01_STR-FSL_YTD sy-vline 
WA_JVB01_STR-FSL_ITD sy-vline 
WA_JVB01_STR-RGCUR sy-vline 
WA_JVB01_STR-GSL_PTD sy-vline 
WA_JVB01_STR-GSL_YTD sy-vline 
WA_JVB01_STR-GSL_ITD sy-vline      INTO ld_text SEPARATED BY SPACE.

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