SAP T0DIAA ABAP Select data from SAP table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T0DIAA 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 T0DIAA. 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 T0DIAA 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_T0DIAA TYPE STANDARD TABLE OF T0DIAA,
      WA_T0DIAA TYPE T0DIAA,
      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: <T0DIAA> TYPE T0DIAA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T0DIAA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T0DIAA
  INTO TABLE IT_T0DIAA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T0DIAA
*  INTO TABLE @DATA(IT_T0DIAA2).
*--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_T0DIAA INDEX 1 INTO DATA(WA_T0DIAA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T0DIAA ASSIGNING <T0DIAA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T0DIAA>-CLIENT = 1.
<T0DIAA>-WMIN = 1.
<T0DIAA>-WMAX = 1.
<T0DIAA>-WTAU = 1.
<T0DIAA>-AVG_METHOD = 1.

ENDLOOP.

LOOP AT IT_T0DIAA INTO WA_T0DIAA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T0DIAA-SIGNIFICANT, sy-vline,
  WA_T0DIAA-MAX_GROUP, sy-vline,
  WA_T0DIAA-N_FREQUENT, sy-vline,
  WA_T0DIAA-FULL_FP_CODE, sy-vline,
  WA_T0DIAA-PART_FP_CODE, sy-vline,
  WA_T0DIAA-FULL_FP_SYMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T0DIAA 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_T0DIAA 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_T0DIAA INTO WA_T0DIAA.


*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 WMIN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WMIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WMIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WMAX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WMAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WMAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WTAU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WTAU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WTAU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SIGNIFICANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-SIGNIFICANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-SIGNIFICANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAX_GROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-MAX_GROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-MAX_GROUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field N_FREQUENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-N_FREQUENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-N_FREQUENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FP_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FP_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FP_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FP_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FP_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FP_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FP_SYMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FP_SYMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FP_SYMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FP_SYMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FP_SYMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FP_SYMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FP_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FP_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FP_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FP_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FP_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FP_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FN_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FN_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FN_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FN_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FN_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FN_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FN_SYMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FN_SYMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FN_SYMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FN_SYMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FN_SYMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FN_SYMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FULL_FN_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-FULL_FN_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-FULL_FN_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_FN_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-PART_FN_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-PART_FN_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERR_CODE_IMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERR_CODE_IMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERR_CODE_IMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERR_NEW_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERR_NEW_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERR_NEW_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERR_NEW_SYMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERR_NEW_SYMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERR_NEW_SYMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERR_NEW_LINK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERR_NEW_LINK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERR_NEW_LINK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERR_SUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERR_SUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERR_SUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MIN_ACCESS_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-MIN_ACCESS_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-MIN_ACCESS_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERROR_CATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ERROR_CATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ERROR_CATEGORY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCESS_CATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-ACCESS_CATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-ACCESS_CATEGORY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WACCESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WACCESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WACCESS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WFP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WFP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WFP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-WFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-WFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEVERITY1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-SEVERITY1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-SEVERITY1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEVERITY2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-SEVERITY2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-SEVERITY2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEVERITY3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-SEVERITY3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-SEVERITY3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEVERITY4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T0DIAA-SEVERITY4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T0DIAA-SEVERITY4.
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_T0DIAA_STR, 
CLIENT TYPE STRING,
WMIN TYPE STRING,
WMAX TYPE STRING,
WTAU TYPE STRING,
AVG_METHOD TYPE STRING,
SIGNIFICANT TYPE STRING,
MAX_GROUP TYPE STRING,
N_FREQUENT TYPE STRING,
FULL_FP_CODE TYPE STRING,
PART_FP_CODE TYPE STRING,
FULL_FP_SYMP TYPE STRING,
PART_FP_SYMP TYPE STRING,
FULL_FP_LINK TYPE STRING,
PART_FP_LINK TYPE STRING,
FULL_FN_CODE TYPE STRING,
PART_FN_CODE TYPE STRING,
FULL_FN_SYMP TYPE STRING,
PART_FN_SYMP TYPE STRING,
FULL_FN_LINK TYPE STRING,
PART_FN_LINK TYPE STRING,
ADM_EMAIL TYPE STRING,
AGENT_EMAIL TYPE STRING,
ERR_CODE_IMP TYPE STRING,
ERR_NEW_CODE TYPE STRING,
ERR_NEW_SYMP TYPE STRING,
ERR_NEW_LINK TYPE STRING,
ERR_SUM TYPE STRING,
MIN_ACCESS_NO TYPE STRING,
ERROR_CATEGORY TYPE STRING,
ACCESS_CATEGORY TYPE STRING,
PROPOSAL_EXCEL TYPE STRING,
ERROR_EXCEL TYPE STRING,
ACCESS_EXCEL TYPE STRING,
WACCESS TYPE STRING,
WFP TYPE STRING,
WFN TYPE STRING,
SEVERITY1 TYPE STRING,
SEVERITY2 TYPE STRING,
SEVERITY3 TYPE STRING,
SEVERITY4 TYPE STRING,
NO_SYMPS_WO_SOLS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T0DIAA_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_T0DIAA_STR-CLIENT sy-vline 
WA_T0DIAA_STR-WMIN sy-vline 
WA_T0DIAA_STR-WMAX sy-vline 
WA_T0DIAA_STR-WTAU sy-vline 
WA_T0DIAA_STR-AVG_METHOD sy-vline 
WA_T0DIAA_STR-SIGNIFICANT sy-vline 
WA_T0DIAA_STR-MAX_GROUP sy-vline 
WA_T0DIAA_STR-N_FREQUENT sy-vline 
WA_T0DIAA_STR-FULL_FP_CODE sy-vline 
WA_T0DIAA_STR-PART_FP_CODE sy-vline 
WA_T0DIAA_STR-FULL_FP_SYMP sy-vline 
WA_T0DIAA_STR-PART_FP_SYMP sy-vline 
WA_T0DIAA_STR-FULL_FP_LINK sy-vline 
WA_T0DIAA_STR-PART_FP_LINK sy-vline 
WA_T0DIAA_STR-FULL_FN_CODE sy-vline 
WA_T0DIAA_STR-PART_FN_CODE sy-vline 
WA_T0DIAA_STR-FULL_FN_SYMP sy-vline 
WA_T0DIAA_STR-PART_FN_SYMP sy-vline 
WA_T0DIAA_STR-FULL_FN_LINK sy-vline 
WA_T0DIAA_STR-PART_FN_LINK sy-vline 
WA_T0DIAA_STR-ADM_EMAIL sy-vline 
WA_T0DIAA_STR-AGENT_EMAIL sy-vline 
WA_T0DIAA_STR-ERR_CODE_IMP sy-vline 
WA_T0DIAA_STR-ERR_NEW_CODE sy-vline 
WA_T0DIAA_STR-ERR_NEW_SYMP sy-vline 
WA_T0DIAA_STR-ERR_NEW_LINK sy-vline 
WA_T0DIAA_STR-ERR_SUM sy-vline 
WA_T0DIAA_STR-MIN_ACCESS_NO sy-vline 
WA_T0DIAA_STR-ERROR_CATEGORY sy-vline 
WA_T0DIAA_STR-ACCESS_CATEGORY sy-vline 
WA_T0DIAA_STR-PROPOSAL_EXCEL sy-vline 
WA_T0DIAA_STR-ERROR_EXCEL sy-vline 
WA_T0DIAA_STR-ACCESS_EXCEL sy-vline 
WA_T0DIAA_STR-WACCESS sy-vline 
WA_T0DIAA_STR-WFP sy-vline 
WA_T0DIAA_STR-WFN sy-vline 
WA_T0DIAA_STR-SEVERITY1 sy-vline 
WA_T0DIAA_STR-SEVERITY2 sy-vline 
WA_T0DIAA_STR-SEVERITY3 sy-vline 
WA_T0DIAA_STR-SEVERITY4 sy-vline 
WA_T0DIAA_STR-NO_SYMPS_WO_SOLS sy-vline      INTO ld_text SEPARATED BY SPACE.

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

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