ABAP Select data from SAP table /PRA/WH_CK_DAC_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/WH_CK_DAC_H
*  INTO TABLE @DATA(IT_/PRA/WH_CK_DAC_H2).
*--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_/PRA/WH_CK_DAC_H INDEX 1 INTO DATA(WA_/PRA/WH_CK_DAC_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/WH_CK_DAC_H>-MANDT = 1.
</PRA/WH_CK_DAC_H>-WH_RUN_ID = 1.
</PRA/WH_CK_DAC_H>-RUN_ID = 1.
</PRA/WH_CK_DAC_H>-CHECK_NO = 1.
</PRA/WH_CK_DAC_H>-OWN_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/WH_CK_DAC_H-VNAME, sy-vline,
  WA_/PRA/WH_CK_DAC_H-DOI_NO, sy-vline,
  WA_/PRA/WH_CK_DAC_H-WL_NO, sy-vline,
  WA_/PRA/WH_CK_DAC_H-WC_NO, sy-vline,
  WA_/PRA/WH_CK_DAC_H-OWN_INT_TYPE_SEQ, sy-vline,
  WA_/PRA/WH_CK_DAC_H-SALE_DT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/WH_CK_DAC_H 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_/PRA/WH_CK_DAC_H 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_/PRA/WH_CK_DAC_H INTO WA_/PRA/WH_CK_DAC_H.


*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 OWN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/WH_CK_DAC_H-OWN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/WH_CK_DAC_H-OWN_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit OIUMY, internal->external for field ACCT_PERIOD
CALL FUNCTION 'CONVERSION_EXIT_OIUMY_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/WH_CK_DAC_H-ACCT_PERIOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/WH_CK_DAC_H-ACCT_PERIOD.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field HEAT_VAL_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/WH_CK_DAC_H-HEAT_VAL_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/WH_CK_DAC_H-HEAT_VAL_UOM.
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_/PRA/WH_CK_DAC_H_STR, 
MANDT TYPE STRING,
WH_RUN_ID TYPE STRING,
RUN_ID TYPE STRING,
CHECK_NO TYPE STRING,
OWN_NO TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
OWN_INT_TYPE_SEQ TYPE STRING,
SALE_DT TYPE STRING,
PD_CD TYPE STRING,
DISB_DECIMAL TYPE STRING,
SAKNR TYPE STRING,
RECORD_TYPE TYPE STRING,
BUKRS TYPE STRING,
ACCT_PERIOD TYPE STRING,
NRI_DECIMAL TYPE STRING,
DN_NO TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
UNIT_VNAME TYPE STRING,
VOL_UOM TYPE STRING,
ENERGY_UOM TYPE STRING,
SUS_RSN_CD TYPE STRING,
PPA_RSN_CD TYPE STRING,
AES_CD TYPE STRING,
GROSS_VOL TYPE STRING,
GROSS_VAL TYPE STRING,
OWNER_GROSS_VAL TYPE STRING,
NET_VAL TYPE STRING,
NET_VOL TYPE STRING,
GROSS_ENERGY TYPE STRING,
OWNER_ENERGY TYPE STRING,
GROSS_TOT_MKT TYPE STRING,
GROSS_TOT_TAXES TYPE STRING,
OWNER_TOT_MKT TYPE STRING,
OWNER_TOT_TAXES TYPE STRING,
OWNER_TOT_OTHER TYPE STRING,
GRS_LESS_TAX_MKT TYPE STRING,
HEAT_VAL TYPE STRING,
HEAT_VAL_UOM TYPE STRING,
PRICE TYPE STRING,
REJ_CD TYPE STRING,
DTL_REJ_CD TYPE STRING,
COMMENT_NO TYPE STRING,
CHECK_DT TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/WH_CK_DAC_H_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_/PRA/WH_CK_DAC_H_STR-MANDT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-WH_RUN_ID sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-RUN_ID sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-CHECK_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWN_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-VNAME sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-DOI_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-WL_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-WC_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWN_INT_TYPE_SEQ sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-SALE_DT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-PD_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-DISB_DECIMAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-SAKNR sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-RECORD_TYPE sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-BUKRS sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-ACCT_PERIOD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-NRI_DECIMAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-DN_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-LAND1 sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-REGIO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-COUNC sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-UNIT_VNAME sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-VOL_UOM sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-ENERGY_UOM sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-SUS_RSN_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-PPA_RSN_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-AES_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GROSS_VOL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GROSS_VAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWNER_GROSS_VAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-NET_VAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-NET_VOL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GROSS_ENERGY sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWNER_ENERGY sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GROSS_TOT_MKT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GROSS_TOT_TAXES sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWNER_TOT_MKT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWNER_TOT_TAXES sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OWNER_TOT_OTHER sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-GRS_LESS_TAX_MKT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-HEAT_VAL sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-HEAT_VAL_UOM sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-PRICE sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-REJ_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-DTL_REJ_CD sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-COMMENT_NO sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-CHECK_DT sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OIU_CRUSER sy-vline 
WA_/PRA/WH_CK_DAC_H_STR-OIU_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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