ABAP Select data from SAP table T77WWW_WHO_SRD into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP T77WWW_WHO_SRD 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 T77WWW_WHO_SRD. 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 T77WWW_WHO_SRD 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_T77WWW_WHO_SRD TYPE STANDARD TABLE OF T77WWW_WHO_SRD,
      WA_T77WWW_WHO_SRD TYPE T77WWW_WHO_SRD,
      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: <T77WWW_WHO_SRD> TYPE T77WWW_WHO_SRD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T77WWW_WHO_SRD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T77WWW_WHO_SRD
  INTO TABLE IT_T77WWW_WHO_SRD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T77WWW_WHO_SRD
*  INTO TABLE @DATA(IT_T77WWW_WHO_SRD2).
*--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_T77WWW_WHO_SRD INDEX 1 INTO DATA(WA_T77WWW_WHO_SRD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T77WWW_WHO_SRD ASSIGNING <T77WWW_WHO_SRD>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<T77WWW_WHO_SRD>-CLIENT = 1.
<T77WWW_WHO_SRD>-MOLGA = 1.
<T77WWW_WHO_SRD>-WHO_TYPE = 1.
<T77WWW_WHO_SRD>-WHO_SRD = 1.
<T77WWW_WHO_SRD>-WHO_SRD_CNT = 1.
ENDLOOP.

LOOP AT IT_T77WWW_WHO_SRD INTO WA_T77WWW_WHO_SRD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T77WWW_WHO_SRD-SORT, sy-vline,
WA_T77WWW_WHO_SRD-NUMB, sy-vline,
WA_T77WWW_WHO_SRD-SGNA, sy-vline,
WA_T77WWW_WHO_SRD-NAME, sy-vline,
WA_T77WWW_WHO_SRD-FTEXT, sy-vline,
WA_T77WWW_WHO_SRD-TYPE, sy-vline.
ENDLOOP. *Add any further fields from structure WA_T77WWW_WHO_SRD 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_T77WWW_WHO_SRD 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_T77WWW_WHO_SRD INTO WA_T77WWW_WHO_SRD. *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_T77WWW_WHO_SRD_STR,
CLIENT TYPE STRING,
MOLGA TYPE STRING,
WHO_TYPE TYPE STRING,
WHO_SRD TYPE STRING,
WHO_SRD_CNT TYPE STRING,
SORT TYPE STRING,
NUMB TYPE STRING,
SGNA TYPE STRING,
NAME TYPE STRING,
FTEXT TYPE STRING,
TYPE TYPE STRING,
OLENG TYPE STRING,
DECIMALS TYPE STRING,
CURRY TYPE STRING,
LENG TYPE STRING,
LIKEFIELD TYPE STRING,
INFTY TYPE STRING,
FIELDNAME TYPE STRING,
FIELDKIND TYPE STRING,
DESCRIPTION TYPE STRING,END OF T_EKKO_STR. DATA: WA_T77WWW_WHO_SRD_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_T77WWW_WHO_SRD_STR-CLIENT sy-vline
WA_T77WWW_WHO_SRD_STR-MOLGA sy-vline
WA_T77WWW_WHO_SRD_STR-WHO_TYPE sy-vline
WA_T77WWW_WHO_SRD_STR-WHO_SRD sy-vline
WA_T77WWW_WHO_SRD_STR-WHO_SRD_CNT sy-vline
WA_T77WWW_WHO_SRD_STR-SORT sy-vline
WA_T77WWW_WHO_SRD_STR-NUMB sy-vline
WA_T77WWW_WHO_SRD_STR-SGNA sy-vline
WA_T77WWW_WHO_SRD_STR-NAME sy-vline
WA_T77WWW_WHO_SRD_STR-FTEXT sy-vline
WA_T77WWW_WHO_SRD_STR-TYPE sy-vline
WA_T77WWW_WHO_SRD_STR-OLENG sy-vline
WA_T77WWW_WHO_SRD_STR-DECIMALS sy-vline
WA_T77WWW_WHO_SRD_STR-CURRY sy-vline
WA_T77WWW_WHO_SRD_STR-LENG sy-vline
WA_T77WWW_WHO_SRD_STR-LIKEFIELD sy-vline
WA_T77WWW_WHO_SRD_STR-INFTY sy-vline
WA_T77WWW_WHO_SRD_STR-FIELDNAME sy-vline
WA_T77WWW_WHO_SRD_STR-FIELDKIND sy-vline
WA_T77WWW_WHO_SRD_STR-DESCRIPTION sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.