ABAP Select data from SAP table CRM_CATM 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 CRM_CATM 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 CRM_CATM. 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 CRM_CATM 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_CRM_CATM TYPE STANDARD TABLE OF CRM_CATM,
      WA_CRM_CATM TYPE CRM_CATM,
      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: <CRM_CATM> TYPE CRM_CATM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_CATM
*  INTO TABLE @DATA(IT_CRM_CATM2).
*--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_CRM_CATM INDEX 1 INTO DATA(WA_CRM_CATM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRM_CATM ASSIGNING <CRM_CATM>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_CATM>-SESSION_ID = 1.
<CRM_CATM>-LVORN = 1.
<CRM_CATM>-LABLN = 1.
<CRM_CATM>-LMODN = 1.
<CRM_CATM>-LFKTN = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_CATM-MODNR, sy-vline,
WA_CRM_CATM-FKTC, sy-vline,
WA_CRM_CATM-LFDNR, sy-vline,
WA_CRM_CATM-SUBNR, sy-vline,
WA_CRM_CATM-REFNR, sy-vline,
WA_CRM_CATM-PMODN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CRM_CATM 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_CRM_CATM 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_CRM_CATM INTO WA_CRM_CATM. *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_CRM_CATM_STR,
SESSION_ID TYPE STRING,
LVORN TYPE STRING,
LABLN TYPE STRING,
LMODN TYPE STRING,
LFKTN TYPE STRING,
MODNR TYPE STRING,
FKTC TYPE STRING,
LFDNR TYPE STRING,
SUBNR TYPE STRING,
REFNR TYPE STRING,
PMODN TYPE STRING,
SKENN TYPE STRING,
SUBFK TYPE STRING,
TABNA TYPE STRING,
WKENN TYPE STRING,
TCODE TYPE STRING,
MPOOL TYPE STRING,
DYNNR TYPE STRING,
FBAU TYPE STRING,
FCOD1 TYPE STRING,
FCOD2 TYPE STRING,
OCCUR TYPE STRING,
ERRCD TYPE STRING,
MSGID TYPE STRING,
MSGNR TYPE STRING,
EFKTC TYPE STRING,
EOBJC TYPE STRING,
VINDI TYPE STRING,
EOFFI TYPE STRING,
VINDE TYPE STRING,
EOFFE TYPE STRING,
VARF1 TYPE STRING,
VARF2 TYPE STRING,
VARF3 TYPE STRING,
VARF4 TYPE STRING,
VARF5 TYPE STRING,END OF T_EKKO_STR. DATA: WA_CRM_CATM_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_CRM_CATM_STR-SESSION_ID sy-vline
WA_CRM_CATM_STR-LVORN sy-vline
WA_CRM_CATM_STR-LABLN sy-vline
WA_CRM_CATM_STR-LMODN sy-vline
WA_CRM_CATM_STR-LFKTN sy-vline
WA_CRM_CATM_STR-MODNR sy-vline
WA_CRM_CATM_STR-FKTC sy-vline
WA_CRM_CATM_STR-LFDNR sy-vline
WA_CRM_CATM_STR-SUBNR sy-vline
WA_CRM_CATM_STR-REFNR sy-vline
WA_CRM_CATM_STR-PMODN sy-vline
WA_CRM_CATM_STR-SKENN sy-vline
WA_CRM_CATM_STR-SUBFK sy-vline
WA_CRM_CATM_STR-TABNA sy-vline
WA_CRM_CATM_STR-WKENN sy-vline
WA_CRM_CATM_STR-TCODE sy-vline
WA_CRM_CATM_STR-MPOOL sy-vline
WA_CRM_CATM_STR-DYNNR sy-vline
WA_CRM_CATM_STR-FBAU sy-vline
WA_CRM_CATM_STR-FCOD1 sy-vline
WA_CRM_CATM_STR-FCOD2 sy-vline
WA_CRM_CATM_STR-OCCUR sy-vline
WA_CRM_CATM_STR-ERRCD sy-vline
WA_CRM_CATM_STR-MSGID sy-vline
WA_CRM_CATM_STR-MSGNR sy-vline
WA_CRM_CATM_STR-EFKTC sy-vline
WA_CRM_CATM_STR-EOBJC sy-vline
WA_CRM_CATM_STR-VINDI sy-vline
WA_CRM_CATM_STR-EOFFI sy-vline
WA_CRM_CATM_STR-VINDE sy-vline
WA_CRM_CATM_STR-EOFFE sy-vline
WA_CRM_CATM_STR-VARF1 sy-vline
WA_CRM_CATM_STR-VARF2 sy-vline
WA_CRM_CATM_STR-VARF3 sy-vline
WA_CRM_CATM_STR-VARF4 sy-vline
WA_CRM_CATM_STR-VARF5 sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.