ABAP Select data from SAP table COTAR_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COTAR_EXT
*  INTO TABLE @DATA(IT_COTAR_EXT2).
*--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_COTAR_EXT INDEX 1 INTO DATA(WA_COTAR_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COTAR_EXT>-GJAHR = 1.
<COTAR_EXT>-VERSN = 1.
<COTAR_EXT>-RLDNR = 1.
<COTAR_EXT>-CATEGORY = 1.
<COTAR_EXT>-OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COTAR_EXT-BWSTRAT, sy-vline,
  WA_COTAR_EXT-PERIO, sy-vline,
  WA_COTAR_EXT-KWAER, sy-vline,
  WA_COTAR_EXT-TKG, sy-vline,
  WA_COTAR_EXT-TKF, sy-vline,
  WA_COTAR_EXT-TKE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COTAR_EXT 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_COTAR_EXT 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_COTAR_EXT INTO WA_COTAR_EXT.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit AC112, internal->external for field TKG
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TKG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TKG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TKF
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TKF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TKF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOG
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TOG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TOG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOF
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TOF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TOF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOGR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TOGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TOGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOFR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TOFR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TOFR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit AC112, internal->external for field TTF
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TTF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TTF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TTG
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TTG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TTG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TTE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COTAR_EXT-TTE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COTAR_EXT-TTE_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_COTAR_EXT_STR, 
GJAHR TYPE STRING,
VERSN TYPE STRING,
RLDNR TYPE STRING,
CATEGORY TYPE STRING,
OBJNR TYPE STRING,
BWSTRAT TYPE STRING,
PERIO TYPE STRING,
KWAER TYPE STRING,
TKG TYPE STRING,
TKF TYPE STRING,
TKE TYPE STRING,
OWAERS TYPE STRING,
TOG TYPE STRING,
TOF TYPE STRING,
TOE TYPE STRING,
OWAERR TYPE STRING,
TOGR TYPE STRING,
TOFR TYPE STRING,
TOER TYPE STRING,
PERNR TYPE STRING,
SRV_COST_LEVEL TYPE STRING,
WORK_ITEM_ID TYPE STRING,
WRTTP TYPE STRING,
PRICING_DATE TYPE STRING,
ICO_RATE TYPE STRING,
OVERTIMECAT TYPE STRING,
OBJNR_REC TYPE STRING,
COMPANY_SEND TYPE STRING,
COMPANY_REC TYPE STRING,
MEINH TYPE STRING,
WSDAT TYPE STRING,
TWAER TYPE STRING,
TTF TYPE STRING,
TTG TYPE STRING,
TTE TYPE STRING,
TTE_UOM TYPE STRING,
TAB_CURR TYPE STRING,
TAB_LEDGER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COTAR_EXT_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_COTAR_EXT_STR-GJAHR sy-vline 
WA_COTAR_EXT_STR-VERSN sy-vline 
WA_COTAR_EXT_STR-RLDNR sy-vline 
WA_COTAR_EXT_STR-CATEGORY sy-vline 
WA_COTAR_EXT_STR-OBJNR sy-vline 
WA_COTAR_EXT_STR-BWSTRAT sy-vline 
WA_COTAR_EXT_STR-PERIO sy-vline 
WA_COTAR_EXT_STR-KWAER sy-vline 
WA_COTAR_EXT_STR-TKG sy-vline 
WA_COTAR_EXT_STR-TKF sy-vline 
WA_COTAR_EXT_STR-TKE sy-vline 
WA_COTAR_EXT_STR-OWAERS sy-vline 
WA_COTAR_EXT_STR-TOG sy-vline 
WA_COTAR_EXT_STR-TOF sy-vline 
WA_COTAR_EXT_STR-TOE sy-vline 
WA_COTAR_EXT_STR-OWAERR sy-vline 
WA_COTAR_EXT_STR-TOGR sy-vline 
WA_COTAR_EXT_STR-TOFR sy-vline 
WA_COTAR_EXT_STR-TOER sy-vline 
WA_COTAR_EXT_STR-PERNR sy-vline 
WA_COTAR_EXT_STR-SRV_COST_LEVEL sy-vline 
WA_COTAR_EXT_STR-WORK_ITEM_ID sy-vline 
WA_COTAR_EXT_STR-WRTTP sy-vline 
WA_COTAR_EXT_STR-PRICING_DATE sy-vline 
WA_COTAR_EXT_STR-ICO_RATE sy-vline 
WA_COTAR_EXT_STR-OVERTIMECAT sy-vline 
WA_COTAR_EXT_STR-OBJNR_REC sy-vline 
WA_COTAR_EXT_STR-COMPANY_SEND sy-vline 
WA_COTAR_EXT_STR-COMPANY_REC sy-vline 
WA_COTAR_EXT_STR-MEINH sy-vline 
WA_COTAR_EXT_STR-WSDAT sy-vline 
WA_COTAR_EXT_STR-TWAER sy-vline 
WA_COTAR_EXT_STR-TTF sy-vline 
WA_COTAR_EXT_STR-TTG sy-vline 
WA_COTAR_EXT_STR-TTE sy-vline 
WA_COTAR_EXT_STR-TTE_UOM sy-vline 
WA_COTAR_EXT_STR-TAB_CURR sy-vline 
WA_COTAR_EXT_STR-TAB_LEDGER sy-vline      INTO ld_text SEPARATED BY SPACE.

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