ABAP Select data from SAP table E1CMS_BII_CAG_AST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1CMS_BII_CAG_AST 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 E1CMS_BII_CAG_AST. 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 E1CMS_BII_CAG_AST 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_E1CMS_BII_CAG_AST TYPE STANDARD TABLE OF E1CMS_BII_CAG_AST,
      WA_E1CMS_BII_CAG_AST TYPE E1CMS_BII_CAG_AST,
      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: <E1CMS_BII_CAG_AST> TYPE E1CMS_BII_CAG_AST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1CMS_BII_CAG_AST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1CMS_BII_CAG_AST
  INTO TABLE IT_E1CMS_BII_CAG_AST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1CMS_BII_CAG_AST
*  INTO TABLE @DATA(IT_E1CMS_BII_CAG_AST2).
*--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_E1CMS_BII_CAG_AST INDEX 1 INTO DATA(WA_E1CMS_BII_CAG_AST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1CMS_BII_CAG_AST ASSIGNING <E1CMS_BII_CAG_AST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1CMS_BII_CAG_AST>-AST_ID = 1.
<E1CMS_BII_CAG_AST>-SUBAST_ID = 1.
<E1CMS_BII_CAG_AST>-RANKING_ORDER = 1.
<E1CMS_BII_CAG_AST>-SEQUENCE = 1.
<E1CMS_BII_CAG_AST>-CHG_AST_PART_NR = 1.

ENDLOOP.

LOOP AT IT_E1CMS_BII_CAG_AST INTO WA_E1CMS_BII_CAG_AST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1CMS_BII_CAG_AST-CHG_AST_PART_DN, sy-vline,
  WA_E1CMS_BII_CAG_AST-CHG_AST_PART_QTY, sy-vline,
  WA_E1CMS_BII_CAG_AST-CHG_AST_PART_UNIT_OF_MEASURE, sy-vline,
  WA_E1CMS_BII_CAG_AST-CHG_AST_PART_VALUE, sy-vline,
  WA_E1CMS_BII_CAG_AST-CHG_ASMT_AMT, sy-vline,
  WA_E1CMS_BII_CAG_AST-CHG_ASMT_CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1CMS_BII_CAG_AST 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_E1CMS_BII_CAG_AST 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_E1CMS_BII_CAG_AST INTO WA_E1CMS_BII_CAG_AST.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_E1CMS_BII_CAG_AST_STR, 
AST_ID TYPE STRING,
SUBAST_ID TYPE STRING,
RANKING_ORDER TYPE STRING,
SEQUENCE TYPE STRING,
CHG_AST_PART_NR TYPE STRING,
CHG_AST_PART_DN TYPE STRING,
CHG_AST_PART_QTY TYPE STRING,
CHG_AST_PART_UNIT_OF_MEASURE TYPE STRING,
CHG_AST_PART_VALUE TYPE STRING,
CHG_ASMT_AMT TYPE STRING,
CHG_ASMT_CURR TYPE STRING,
CHG_ASMT_DATE TYPE STRING,
CHG_DESC TYPE STRING,
AST_TYP TYPE STRING,
AST_CAT TYPE STRING,
AST_DESC TYPE STRING,
AST_VAL_FREQ TYPE STRING,
AST_EXT_REF_NR TYPE STRING,
AST_SEC_ISIN TYPE STRING,
AST_LAST_VALUED_DATE TYPE STRING,
AST_VALUE_BII TYPE STRING,
AST_VALUE_CURR_BII TYPE STRING,
AST_NOM_VALUE TYPE STRING,
AST_VALUE TYPE STRING,
AST_NOM_VALUE_CURR TYPE STRING,
AST_VALUE_CURR TYPE STRING,
AST_UNIT_OF_MEASURE TYPE STRING,
AST_QUANTITY TYPE STRING,
AST_VAL_REC_AT TYPE STRING,
AST_BANK_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1CMS_BII_CAG_AST_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_E1CMS_BII_CAG_AST_STR-AST_ID sy-vline 
WA_E1CMS_BII_CAG_AST_STR-SUBAST_ID sy-vline 
WA_E1CMS_BII_CAG_AST_STR-RANKING_ORDER sy-vline 
WA_E1CMS_BII_CAG_AST_STR-SEQUENCE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_AST_PART_NR sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_AST_PART_DN sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_AST_PART_QTY sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_AST_PART_UNIT_OF_MEASURE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_AST_PART_VALUE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_ASMT_AMT sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_ASMT_CURR sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_ASMT_DATE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-CHG_DESC sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_TYP sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_CAT sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_DESC sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VAL_FREQ sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_EXT_REF_NR sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_SEC_ISIN sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_LAST_VALUED_DATE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VALUE_BII sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VALUE_CURR_BII sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_NOM_VALUE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VALUE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_NOM_VALUE_CURR sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VALUE_CURR sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_UNIT_OF_MEASURE sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_QUANTITY sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_VAL_REC_AT sy-vline 
WA_E1CMS_BII_CAG_AST_STR-AST_BANK_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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