ABAP Select data from SAP table /IBS/TRB_ECH_BAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IBS/TRB_ECH_BAL 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 /IBS/TRB_ECH_BAL. 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 /IBS/TRB_ECH_BAL 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_/IBS/TRB_ECH_BAL TYPE STANDARD TABLE OF /IBS/TRB_ECH_BAL,
      WA_/IBS/TRB_ECH_BAL TYPE /IBS/TRB_ECH_BAL,
      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: </IBS/TRB_ECH_BAL> TYPE /IBS/TRB_ECH_BAL.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IBS/TRB_ECH_BAL
  INTO TABLE IT_/IBS/TRB_ECH_BAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IBS/TRB_ECH_BAL
*  INTO TABLE @DATA(IT_/IBS/TRB_ECH_BAL2).
*--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_/IBS/TRB_ECH_BAL INDEX 1 INTO DATA(WA_/IBS/TRB_ECH_BAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IBS/TRB_ECH_BAL ASSIGNING </IBS/TRB_ECH_BAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IBS/TRB_ECH_BAL>-MANDANT = 1.
</IBS/TRB_ECH_BAL>-SHEETNR = 1.
</IBS/TRB_ECH_BAL>-BWAGR = 1.
</IBS/TRB_ECH_BAL>-TIMESTAMP = 1.
</IBS/TRB_ECH_BAL>-CURRENCY = 1.

ENDLOOP.

LOOP AT IT_/IBS/TRB_ECH_BAL INTO WA_/IBS/TRB_ECH_BAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IBS/TRB_ECH_BAL-PERC_EXP, sy-vline,
  WA_/IBS/TRB_ECH_BAL-OBLIGO_ORG, sy-vline,
  WA_/IBS/TRB_ECH_BAL-OBLIGO, sy-vline,
  WA_/IBS/TRB_ECH_BAL-RS_BASIS_ORG, sy-vline,
  WA_/IBS/TRB_ECH_BAL-RS_BASIS, sy-vline,
  WA_/IBS/TRB_ECH_BAL-RS_PROP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IBS/TRB_ECH_BAL 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_/IBS/TRB_ECH_BAL 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_/IBS/TRB_ECH_BAL INTO WA_/IBS/TRB_ECH_BAL.


*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 SHEETNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_ECH_BAL-SHEETNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_ECH_BAL-SHEETNR.
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_/IBS/TRB_ECH_BAL_STR, 
MANDANT TYPE STRING,
SHEETNR TYPE STRING,
BWAGR TYPE STRING,
TIMESTAMP TYPE STRING,
CURRENCY TYPE STRING,
PERC_EXP TYPE STRING,
OBLIGO_ORG TYPE STRING,
OBLIGO TYPE STRING,
RS_BASIS_ORG TYPE STRING,
RS_BASIS TYPE STRING,
RS_PROP TYPE STRING,
RS_PROP_DR TYPE STRING,
FLG_RLP TYPE STRING,
INT_METH TYPE STRING,
INT_RATE TYPE STRING,
INT_RATE_ACT TYPE STRING,
INT_RATE_MAN TYPE STRING,
REF_RATE TYPE STRING,
REF_RATE_PM TYPE STRING,
REF_RATE_NOM TYPE STRING,
INIT_AP TYPE STRING,
INIT_PP TYPE STRING,
LOSS TYPE STRING,
LOSS_MAN TYPE STRING,
BAL TYPE STRING,
BAL_AP TYPE STRING,
BAL_PP TYPE STRING,
BAL_UN_AP TYPE STRING,
BAL_UN_PP TYPE STRING,
BAL_CH_PP TYPE STRING,
BAL_US TYPE STRING,
BAL_WO TYPE STRING,
REQ TYPE STRING,
REQ_AP TYPE STRING,
REQ_PP TYPE STRING,
REQ_UN_AP TYPE STRING,
REQ_UN_PP TYPE STRING,
REQ_US TYPE STRING,
REQ_WO TYPE STRING,
SUM_UT_EXP TYPE STRING,
SUM_UT_NPV TYPE STRING,
SUM_CF_EXP TYPE STRING,
SUM_CF_NPV TYPE STRING,
SUM_COL_EXP TYPE STRING,
SUM_COL_NPV TYPE STRING,
SUM_UT_UN TYPE STRING,
SUM_UN TYPE STRING,
OP_CH TYPE STRING,
BST_RE TYPE STRING,
BST_AC TYPE STRING,
REALL_AP TYPE STRING,
REALL_PP TYPE STRING,
BAL_UN_GBA_AP TYPE STRING,
BAL_UN_GBA_PP TYPE STRING,
BAL_UN_NBA_AP TYPE STRING,
BAL_UN_NBA_PP TYPE STRING,
REQ_UN_GBA TYPE STRING,
REQ_UN_NBA TYPE STRING,
NEW_REALL_AP TYPE STRING,
NEW_REALL_PP TYPE STRING,
BST_AP TYPE STRING,
BST_PP TYPE STRING,
BST_US TYPE STRING,
BST_WO TYPE STRING,
ANUSR TYPE STRING,
ANDAT TYPE STRING,
ANUHR TYPE STRING,
ANHER TYPE STRING,
AEUSR TYPE STRING,
AEDAT TYPE STRING,
AEUHR TYPE STRING,
AEHER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IBS/TRB_ECH_BAL_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_/IBS/TRB_ECH_BAL_STR-MANDANT sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SHEETNR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BWAGR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-TIMESTAMP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-CURRENCY sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-PERC_EXP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-OBLIGO_ORG sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-OBLIGO sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-RS_BASIS_ORG sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-RS_BASIS sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-RS_PROP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-RS_PROP_DR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-FLG_RLP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INT_METH sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INT_RATE sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INT_RATE_ACT sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INT_RATE_MAN sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REF_RATE sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REF_RATE_PM sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REF_RATE_NOM sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INIT_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-INIT_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-LOSS sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-LOSS_MAN sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_CH_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_US sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_WO sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_UN_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_UN_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_US sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_WO sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_UT_EXP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_UT_NPV sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_CF_EXP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_CF_NPV sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_COL_EXP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_COL_NPV sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_UT_UN sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-SUM_UN sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-OP_CH sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_RE sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_AC sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REALL_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REALL_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_GBA_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_GBA_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_NBA_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BAL_UN_NBA_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_UN_GBA sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-REQ_UN_NBA sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-NEW_REALL_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-NEW_REALL_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_AP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_PP sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_US sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-BST_WO sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-ANUSR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-ANDAT sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-ANUHR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-ANHER sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-AEUSR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-AEDAT sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-AEUHR sy-vline 
WA_/IBS/TRB_ECH_BAL_STR-AEHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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