ABAP Select data from SAP table ESH_L_BILDOCREQS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESH_L_BILDOCREQS 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_BILDOCREQS. 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_BILDOCREQS 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_BILDOCREQS TYPE STANDARD TABLE OF ESH_L_BILDOCREQS,
      WA_ESH_L_BILDOCREQS TYPE ESH_L_BILDOCREQS,
      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_BILDOCREQS> TYPE ESH_L_BILDOCREQS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_BILDOCREQS
*  INTO TABLE @DATA(IT_ESH_L_BILDOCREQS2).
*--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_BILDOCREQS INDEX 1 INTO DATA(WA_ESH_L_BILDOCREQS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_BILDOCREQS>-MANDT = 1.
<ESH_L_BILDOCREQS>-BILLINGDOCUMENTREQUEST = 1.
<ESH_L_BILDOCREQS>-BILLINGDOCUMENTDATE = 1.
<ESH_L_BILDOCREQS>-BILLINGDOCUMENTREQUESTITEMTEXT = 1.
<ESH_L_BILDOCREQS>-BILLINGDOCUMENTREQUESTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_BILDOCREQS-PROPOSEDBILLINGDOCUMENTTYPE, sy-vline,
  WA_ESH_L_BILDOCREQS-PROPOSEDBILDOCTYPENAME, sy-vline,
  WA_ESH_L_BILDOCREQS-BILDOCTYPENAME, sy-vline,
  WA_ESH_L_BILDOCREQS-BILLINGISSUETYPE, sy-vline,
  WA_ESH_L_BILDOCREQS-BILLINGISSUETYPENAME, sy-vline,
  WA_ESH_L_BILDOCREQS-SOLDTOPARTYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_BILDOCREQS 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_BILDOCREQS 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_BILDOCREQS INTO WA_ESH_L_BILDOCREQS.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_BILDOCREQS-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_BILDOCREQS-SOLDTOPARTY.
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_BILDOCREQS_STR, 
MANDT TYPE STRING,
BILLINGDOCUMENTREQUEST TYPE STRING,
BILLINGDOCUMENTDATE TYPE STRING,
BILLINGDOCUMENTREQUESTITEMTEXT TYPE STRING,
BILLINGDOCUMENTREQUESTTYPE TYPE STRING,
PROPOSEDBILLINGDOCUMENTTYPE TYPE STRING,
PROPOSEDBILDOCTYPENAME TYPE STRING,
BILDOCTYPENAME TYPE STRING,
BILLINGISSUETYPE TYPE STRING,
BILLINGISSUETYPENAME TYPE STRING,
SOLDTOPARTYNAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
OVERALLBILLINGDOCREQSTATUS TYPE STRING,
OVERALLBILLINGSTATUSDESC TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTLOGICALSYSTEM TYPE STRING,
SALESORGANIZATION TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
SOLDTOPARTY TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TOTALTAXAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_BILDOCREQS_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_BILDOCREQS_STR-MANDT sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGDOCUMENTREQUEST sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGDOCUMENTDATE sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGDOCUMENTREQUESTITEMTEXT sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGDOCUMENTREQUESTTYPE sy-vline 
WA_ESH_L_BILDOCREQS_STR-PROPOSEDBILLINGDOCUMENTTYPE sy-vline 
WA_ESH_L_BILDOCREQS_STR-PROPOSEDBILDOCTYPENAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILDOCTYPENAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGISSUETYPE sy-vline 
WA_ESH_L_BILDOCREQS_STR-BILLINGISSUETYPENAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-SOLDTOPARTYNAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-COMPANYCODE sy-vline 
WA_ESH_L_BILDOCREQS_STR-COMPANYCODENAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-MATERIAL sy-vline 
WA_ESH_L_BILDOCREQS_STR-MATERIALNAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-OVERALLBILLINGDOCREQSTATUS sy-vline 
WA_ESH_L_BILDOCREQS_STR-OVERALLBILLINGSTATUSDESC sy-vline 
WA_ESH_L_BILDOCREQS_STR-REFERENCEDOCUMENT sy-vline 
WA_ESH_L_BILDOCREQS_STR-REFERENCEDOCUMENTLOGICALSYSTEM sy-vline 
WA_ESH_L_BILDOCREQS_STR-SALESORGANIZATION sy-vline 
WA_ESH_L_BILDOCREQS_STR-SALESORGANIZATIONNAME sy-vline 
WA_ESH_L_BILDOCREQS_STR-SOLDTOPARTY sy-vline 
WA_ESH_L_BILDOCREQS_STR-TOTALNETAMOUNT sy-vline 
WA_ESH_L_BILDOCREQS_STR-TOTALTAXAMOUNT sy-vline 
WA_ESH_L_BILDOCREQS_STR-TRANSACTIONCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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