ABAP Select data from SAP table JIT_ESDINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JIT_ESDINFO
*  INTO TABLE @DATA(IT_JIT_ESDINFO2).
*--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_JIT_ESDINFO INDEX 1 INTO DATA(WA_JIT_ESDINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JIT_ESDINFO>-DOCNUM = 1.
<JIT_ESDINFO>-KDMAT = 1.
<JIT_ESDINFO>-ARKTX = 1.
<JIT_ESDINFO>-VMENG = 1.
<JIT_ESDINFO>-VRKME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JIT_ESDINFO-RDATUM, sy-vline,
  WA_JIT_ESDINFO-RZEIT, sy-vline,
  WA_JIT_ESDINFO-EXSTI, sy-vline,
  WA_JIT_ESDINFO-ABLAD, sy-vline,
  WA_JIT_ESDINFO-FLDPO, sy-vline,
  WA_JIT_ESDINFO-LIUMF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JIT_ESDINFO 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_JIT_ESDINFO 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_JIT_ESDINFO INTO WA_JIT_ESDINFO.


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

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

*Conversion exit MATNL, internal->external for field LIUMF_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-LIUMF_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-LIUMF_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field LIUMF_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-LIUMF_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-LIUMF_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNL, internal->external for field KDMAT_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-KDMAT_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-KDMAT_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field KDMAT_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-KDMAT_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-KDMAT_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNL, internal->external for field IDNLF_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-IDNLF_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-IDNLF_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field IDNLF_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_JIT_ESDINFO-IDNLF_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_ESDINFO-IDNLF_VERSION.
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_JIT_ESDINFO_STR, 
DOCNUM TYPE STRING,
KDMAT TYPE STRING,
ARKTX TYPE STRING,
VMENG TYPE STRING,
VRKME TYPE STRING,
RDATUM TYPE STRING,
RZEIT TYPE STRING,
EXSTI TYPE STRING,
ABLAD TYPE STRING,
FLDPO TYPE STRING,
LIUMF TYPE STRING,
IDNLF TYPE STRING,
EDATUM TYPE STRING,
EZEIT TYPE STRING,
CHNGLEV TYPE STRING,
PDATUM TYPE STRING,
PZEIT TYPE STRING,
GRPIN TYPE STRING,
GRIND TYPE STRING,
LIUMF_EXTERNAL TYPE STRING,
LIUMF_VERSION TYPE STRING,
LIUMF_GUID TYPE STRING,
KDMAT_EXTERNAL TYPE STRING,
KDMAT_VERSION TYPE STRING,
KDMAT_GUID TYPE STRING,
IDNLF_EXTERNAL TYPE STRING,
IDNLF_VERSION TYPE STRING,
IDNLF_GUID TYPE STRING,
RTY01 TYPE STRING,
RFN01 TYPE STRING,
RTY02 TYPE STRING,
RFN02 TYPE STRING,
RTY03 TYPE STRING,
RFN03 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JIT_ESDINFO_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_JIT_ESDINFO_STR-DOCNUM sy-vline 
WA_JIT_ESDINFO_STR-KDMAT sy-vline 
WA_JIT_ESDINFO_STR-ARKTX sy-vline 
WA_JIT_ESDINFO_STR-VMENG sy-vline 
WA_JIT_ESDINFO_STR-VRKME sy-vline 
WA_JIT_ESDINFO_STR-RDATUM sy-vline 
WA_JIT_ESDINFO_STR-RZEIT sy-vline 
WA_JIT_ESDINFO_STR-EXSTI sy-vline 
WA_JIT_ESDINFO_STR-ABLAD sy-vline 
WA_JIT_ESDINFO_STR-FLDPO sy-vline 
WA_JIT_ESDINFO_STR-LIUMF sy-vline 
WA_JIT_ESDINFO_STR-IDNLF sy-vline 
WA_JIT_ESDINFO_STR-EDATUM sy-vline 
WA_JIT_ESDINFO_STR-EZEIT sy-vline 
WA_JIT_ESDINFO_STR-CHNGLEV sy-vline 
WA_JIT_ESDINFO_STR-PDATUM sy-vline 
WA_JIT_ESDINFO_STR-PZEIT sy-vline 
WA_JIT_ESDINFO_STR-GRPIN sy-vline 
WA_JIT_ESDINFO_STR-GRIND sy-vline 
WA_JIT_ESDINFO_STR-LIUMF_EXTERNAL sy-vline 
WA_JIT_ESDINFO_STR-LIUMF_VERSION sy-vline 
WA_JIT_ESDINFO_STR-LIUMF_GUID sy-vline 
WA_JIT_ESDINFO_STR-KDMAT_EXTERNAL sy-vline 
WA_JIT_ESDINFO_STR-KDMAT_VERSION sy-vline 
WA_JIT_ESDINFO_STR-KDMAT_GUID sy-vline 
WA_JIT_ESDINFO_STR-IDNLF_EXTERNAL sy-vline 
WA_JIT_ESDINFO_STR-IDNLF_VERSION sy-vline 
WA_JIT_ESDINFO_STR-IDNLF_GUID sy-vline 
WA_JIT_ESDINFO_STR-RTY01 sy-vline 
WA_JIT_ESDINFO_STR-RFN01 sy-vline 
WA_JIT_ESDINFO_STR-RTY02 sy-vline 
WA_JIT_ESDINFO_STR-RFN02 sy-vline 
WA_JIT_ESDINFO_STR-RTY03 sy-vline 
WA_JIT_ESDINFO_STR-RFN03 sy-vline      INTO ld_text SEPARATED BY SPACE.

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