ABAP Select data from SAP table ESH_L_MATLDOC 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 ESH_L_MATLDOC 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 ESH_L_MATLDOC. 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 ESH_L_MATLDOC 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_ESH_L_MATLDOC TYPE STANDARD TABLE OF ESH_L_MATLDOC,
      WA_ESH_L_MATLDOC TYPE ESH_L_MATLDOC,
      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: <ESH_L_MATLDOC> TYPE ESH_L_MATLDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_MATLDOC
*  INTO TABLE @DATA(IT_ESH_L_MATLDOC2).
*--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_ESH_L_MATLDOC INDEX 1 INTO DATA(WA_ESH_L_MATLDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_MATLDOC>-MANDT = 1.
<ESH_L_MATLDOC>-MATERIALDOCUMENT = 1.
<ESH_L_MATLDOC>-MATERIALDOCUMENTYEAR = 1.
<ESH_L_MATLDOC>-ACCOUNTINGDOCUMENTTYPE = 1.
<ESH_L_MATLDOC>-ACCOUNTINGDOCUMENTTYPENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_MATLDOC-BILLOFLADING, sy-vline,
  WA_ESH_L_MATLDOC-COMPANYCODE, sy-vline,
  WA_ESH_L_MATLDOC-COMPANYCODENAME, sy-vline,
  WA_ESH_L_MATLDOC-CREATEDBYUSER, sy-vline,
  WA_ESH_L_MATLDOC-CREATIONDATE, sy-vline,
  WA_ESH_L_MATLDOC-CREATIONTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_MATLDOC 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_ESH_L_MATLDOC 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_ESH_L_MATLDOC INTO WA_ESH_L_MATLDOC.


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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_MATLDOC-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_MATLDOC-MATERIAL.
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_ESH_L_MATLDOC_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
ACCOUNTINGDOCUMENTTYPENAME TYPE STRING,
BILLOFLADING TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DOCUMENTDATE TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
GOODSMOVEMENTTYPENAME TYPE STRING,
INVENTORYTRANSACTIONTYPE TYPE STRING,
INVENTORYTRANSACTIONTYPETEXT TYPE STRING,
ISAUTOMATICALLYCREATED TYPE STRING,
IRSTORLOCAUTHZNCHECKACTIVE TYPE STRING,
ISSTORLOCAUTHZNCHECKACTIVE TYPE STRING,
ISSUINGORRECEIVINGPLANT TYPE STRING,
ISSUINGORRECEIVINGSTORAGELOC TYPE STRING,
MATERIAL TYPE STRING,
MATERIALDOCUMENTHEADERTEXT TYPE STRING,
MATERIALDOCUMENTITEMTEXT TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
MATERIALNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
POSTINGDATE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
STORAGELOCATION TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
USERDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_MATLDOC_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_ESH_L_MATLDOC_STR-MANDT sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALDOCUMENT sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_ESH_L_MATLDOC_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_ESH_L_MATLDOC_STR-ACCOUNTINGDOCUMENTTYPENAME sy-vline 
WA_ESH_L_MATLDOC_STR-BILLOFLADING sy-vline 
WA_ESH_L_MATLDOC_STR-COMPANYCODE sy-vline 
WA_ESH_L_MATLDOC_STR-COMPANYCODENAME sy-vline 
WA_ESH_L_MATLDOC_STR-CREATEDBYUSER sy-vline 
WA_ESH_L_MATLDOC_STR-CREATIONDATE sy-vline 
WA_ESH_L_MATLDOC_STR-CREATIONTIME sy-vline 
WA_ESH_L_MATLDOC_STR-DELIVERYDOCUMENT sy-vline 
WA_ESH_L_MATLDOC_STR-DOCUMENTDATE sy-vline 
WA_ESH_L_MATLDOC_STR-GOODSMOVEMENTTYPE sy-vline 
WA_ESH_L_MATLDOC_STR-GOODSMOVEMENTTYPENAME sy-vline 
WA_ESH_L_MATLDOC_STR-INVENTORYTRANSACTIONTYPE sy-vline 
WA_ESH_L_MATLDOC_STR-INVENTORYTRANSACTIONTYPETEXT sy-vline 
WA_ESH_L_MATLDOC_STR-ISAUTOMATICALLYCREATED sy-vline 
WA_ESH_L_MATLDOC_STR-IRSTORLOCAUTHZNCHECKACTIVE sy-vline 
WA_ESH_L_MATLDOC_STR-ISSTORLOCAUTHZNCHECKACTIVE sy-vline 
WA_ESH_L_MATLDOC_STR-ISSUINGORRECEIVINGPLANT sy-vline 
WA_ESH_L_MATLDOC_STR-ISSUINGORRECEIVINGSTORAGELOC sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIAL sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALDOCUMENTHEADERTEXT sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALDOCUMENTITEMTEXT sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALGROUP sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALGROUPNAME sy-vline 
WA_ESH_L_MATLDOC_STR-MATERIALNAME sy-vline 
WA_ESH_L_MATLDOC_STR-PLANT sy-vline 
WA_ESH_L_MATLDOC_STR-PLANTNAME sy-vline 
WA_ESH_L_MATLDOC_STR-POSTINGDATE sy-vline 
WA_ESH_L_MATLDOC_STR-REFERENCEDOCUMENT sy-vline 
WA_ESH_L_MATLDOC_STR-STORAGELOCATION sy-vline 
WA_ESH_L_MATLDOC_STR-STORAGELOCATIONNAME sy-vline 
WA_ESH_L_MATLDOC_STR-USERDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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