ABAP Select data from SAP table /ACCGO/CAK_S_SNP_LVL1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/CAK_S_SNP_LVL1 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 /ACCGO/CAK_S_SNP_LVL1. 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 /ACCGO/CAK_S_SNP_LVL1 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_/ACCGO/CAK_S_SNP_LVL1 TYPE STANDARD TABLE OF /ACCGO/CAK_S_SNP_LVL1,
      WA_/ACCGO/CAK_S_SNP_LVL1 TYPE /ACCGO/CAK_S_SNP_LVL1,
      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: </ACCGO/CAK_S_SNP_LVL1> TYPE /ACCGO/CAK_S_SNP_LVL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ACCGO/CAK_S_SNP_LVL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/CAK_S_SNP_LVL1
  INTO TABLE IT_/ACCGO/CAK_S_SNP_LVL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/CAK_S_SNP_LVL1
*  INTO TABLE @DATA(IT_/ACCGO/CAK_S_SNP_LVL12).
*--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_/ACCGO/CAK_S_SNP_LVL1 INDEX 1 INTO DATA(WA_/ACCGO/CAK_S_SNP_LVL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/CAK_S_SNP_LVL1 ASSIGNING </ACCGO/CAK_S_SNP_LVL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/CAK_S_SNP_LVL1>-TPOSN = 1.
</ACCGO/CAK_S_SNP_LVL1>-ELIFN = 1.
</ACCGO/CAK_S_SNP_LVL1>-WAERS_PURCH = 1.
</ACCGO/CAK_S_SNP_LVL1>-ZTERM_SALES = 1.
</ACCGO/CAK_S_SNP_LVL1>-ZTERM = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/CAK_S_SNP_LVL1 INTO WA_/ACCGO/CAK_S_SNP_LVL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/CAK_S_SNP_LVL1-INCO1_MM, sy-vline,
  WA_/ACCGO/CAK_S_SNP_LVL1-INCO2_MM, sy-vline,
  WA_/ACCGO/CAK_S_SNP_LVL1-INCO2_L_MM, sy-vline,
  WA_/ACCGO/CAK_S_SNP_LVL1-INCO1_SD, sy-vline,
  WA_/ACCGO/CAK_S_SNP_LVL1-INCO2_SD, sy-vline,
  WA_/ACCGO/CAK_S_SNP_LVL1-INCO2_L_SD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/CAK_S_SNP_LVL1 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_/ACCGO/CAK_S_SNP_LVL1 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_/ACCGO/CAK_S_SNP_LVL1 INTO WA_/ACCGO/CAK_S_SNP_LVL1.


*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 ELIFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_SNP_LVL1-ELIFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_SNP_LVL1-ELIFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_SNP_LVL1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_SNP_LVL1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_SNP_LVL1-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_SNP_LVL1-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM_TOL_HD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_SNP_LVL1-UOM_TOL_HD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_SNP_LVL1-UOM_TOL_HD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GOVW1, internal->external for field GOV_WEIGHT
CALL FUNCTION 'CONVERSION_EXIT_GOVW1_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_SNP_LVL1-GOV_WEIGHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_SNP_LVL1-GOV_WEIGHT.
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_/ACCGO/CAK_S_SNP_LVL1_STR, 
TPOSN TYPE STRING,
ELIFN TYPE STRING,
WAERS_PURCH TYPE STRING,
ZTERM_SALES TYPE STRING,
ZTERM TYPE STRING,
INCO1_MM TYPE STRING,
INCO2_MM TYPE STRING,
INCO2_L_MM TYPE STRING,
INCO1_SD TYPE STRING,
INCO2_SD TYPE STRING,
INCO2_L_SD TYPE STRING,
IHREZ TYPE STRING,
BSTKD TYPE STRING,
KWMENG TYPE STRING,
MENGE TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
WERKS TYPE STRING,
VAL_POINT TYPE STRING,
PRICING_APPROACH TYPE STRING,
INTENDED_PRICE_TYPE TYPE STRING,
PYMNT_TYPE TYPE STRING,
PYMNT_TERMS TYPE STRING,
PYMNT_DATE TYPE STRING,
PREPAYMENTAGRMTLINKSTATUS TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
TOLRID TYPE STRING,
TOLR_TYP_ID TYPE STRING,
OPTION_T TYPE STRING,
DELIVERY_QTY TYPE STRING,
UOM_TOL_HD TYPE STRING,
NUMBER_OF_VEHICLES TYPE STRING,
VERSION_TIMESTMP TYPE STRING,
SCHEDULE_ID TYPE STRING,
TIMING TYPE STRING,
AT_UNLOAD_LOC TYPE STRING,
GOV_ANALYSIS TYPE STRING,
GOV_WEIGHT TYPE STRING,
GOV_TERM TYPE STRING,
SCHEDULE_GUID TYPE STRING,
OV_FLAG TYPE STRING,
GUID_QTOL TYPE STRING,
TOL_ITEM TYPE STRING,
OPTIONALITY TYPE STRING,
PRC_FIX TYPE STRING,
CANCELLATION TYPE STRING,
DPQS_CHAR TYPE STRING,
DPQS_RANGE TYPE STRING,
FEE TYPE STRING,
CREDIT_SALE TYPE STRING,
UPDKZ TYPE STRING,
OUTPUT_PROCESS TYPE STRING,
SIGNATURE_REL TYPE STRING,
SIGNATURE_STATUS TYPE STRING,
SIG_REL_ITM TYPE STRING,
PRICING_METHOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/CAK_S_SNP_LVL1_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_/ACCGO/CAK_S_SNP_LVL1_STR-TPOSN sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-ELIFN sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-WAERS_PURCH sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-ZTERM_SALES sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-ZTERM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO1_MM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO2_MM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO2_L_MM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO1_SD sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO2_SD sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INCO2_L_SD sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-IHREZ sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-BSTKD sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-KWMENG sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-MENGE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-MATNR sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-ARKTX sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-WERKS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-VAL_POINT sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PRICING_APPROACH sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-INTENDED_PRICE_TYPE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PYMNT_TYPE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PYMNT_TERMS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PYMNT_DATE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PREPAYMENTAGRMTLINKSTATUS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-QUANTITY sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-UNIT sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-DATE_FROM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-DATE_TO sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-TOLRID sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-TOLR_TYP_ID sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-OPTION_T sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-DELIVERY_QTY sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-UOM_TOL_HD sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-NUMBER_OF_VEHICLES sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-VERSION_TIMESTMP sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-SCHEDULE_ID sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-TIMING sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-AT_UNLOAD_LOC sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-GOV_ANALYSIS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-GOV_WEIGHT sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-GOV_TERM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-SCHEDULE_GUID sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-OV_FLAG sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-GUID_QTOL sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-TOL_ITEM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-OPTIONALITY sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PRC_FIX sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-CANCELLATION sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-DPQS_CHAR sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-DPQS_RANGE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-FEE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-CREDIT_SALE sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-UPDKZ sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-OUTPUT_PROCESS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-SIGNATURE_REL sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-SIGNATURE_STATUS sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-SIG_REL_ITM sy-vline 
WA_/ACCGO/CAK_S_SNP_LVL1_STR-PRICING_METHOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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