ABAP Select data from SAP table CRMV_ISU_CM_H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMV_ISU_CM_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 CRMV_ISU_CM_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 CRMV_ISU_CM_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_CRMV_ISU_CM_H TYPE STANDARD TABLE OF CRMV_ISU_CM_H,
      WA_CRMV_ISU_CM_H TYPE CRMV_ISU_CM_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: <CRMV_ISU_CM_H> TYPE CRMV_ISU_CM_H.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMV_ISU_CM_H
*  INTO TABLE @DATA(IT_CRMV_ISU_CM_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_CRMV_ISU_CM_H INDEX 1 INTO DATA(WA_CRMV_ISU_CM_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMV_ISU_CM_H>-CLIENT = 1.
<CRMV_ISU_CM_H>-CHECK_CLASS = 1.
<CRMV_ISU_CM_H>-WARNINGS = 1.
<CRMV_ISU_CM_H>-ERRORS = 1.
<CRMV_ISU_CM_H>-STARTED_AT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMV_ISU_CM_H-EXECUTED_AT, sy-vline,
  WA_CRMV_ISU_CM_H-COMPLETED_AT, sy-vline,
  WA_CRMV_ISU_CM_H-RETESTED_AT, sy-vline,
  WA_CRMV_ISU_CM_H-JOBNAME, sy-vline,
  WA_CRMV_ISU_CM_H-JOBCOUNT, sy-vline,
  WA_CRMV_ISU_CM_H-STEPCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMV_ISU_CM_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_CRMV_ISU_CM_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_CRMV_ISU_CM_H INTO WA_CRMV_ISU_CM_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 TSTLC, internal->external for field STARTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMV_ISU_CM_H-STARTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMV_ISU_CM_H-STARTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field EXECUTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMV_ISU_CM_H-EXECUTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMV_ISU_CM_H-EXECUTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field COMPLETED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMV_ISU_CM_H-COMPLETED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMV_ISU_CM_H-COMPLETED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field RETESTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMV_ISU_CM_H-RETESTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMV_ISU_CM_H-RETESTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ISSUE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMV_ISU_CM_H-ISSUE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMV_ISU_CM_H-ISSUE_ID.
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_CRMV_ISU_CM_H_STR, 
CLIENT TYPE STRING,
CHECK_CLASS TYPE STRING,
WARNINGS TYPE STRING,
ERRORS TYPE STRING,
STARTED_AT TYPE STRING,
EXECUTED_AT TYPE STRING,
COMPLETED_AT TYPE STRING,
RETESTED_AT TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
STEPCOUNT TYPE STRING,
CHECK_RUN_GUID TYPE STRING,
ISSUE_ID TYPE STRING,
ISSUE_GUID TYPE STRING,
REF_GUID TYPE STRING,
REF_TYPE TYPE STRING,
REF_ISSUE_RECORD TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGID TYPE STRING,
LINE TYPE STRING,
OUTDATED TYPE STRING,
NEWEST TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ERP_MSG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMV_ISU_CM_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_CRMV_ISU_CM_H_STR-CLIENT sy-vline 
WA_CRMV_ISU_CM_H_STR-CHECK_CLASS sy-vline 
WA_CRMV_ISU_CM_H_STR-WARNINGS sy-vline 
WA_CRMV_ISU_CM_H_STR-ERRORS sy-vline 
WA_CRMV_ISU_CM_H_STR-STARTED_AT sy-vline 
WA_CRMV_ISU_CM_H_STR-EXECUTED_AT sy-vline 
WA_CRMV_ISU_CM_H_STR-COMPLETED_AT sy-vline 
WA_CRMV_ISU_CM_H_STR-RETESTED_AT sy-vline 
WA_CRMV_ISU_CM_H_STR-JOBNAME sy-vline 
WA_CRMV_ISU_CM_H_STR-JOBCOUNT sy-vline 
WA_CRMV_ISU_CM_H_STR-STEPCOUNT sy-vline 
WA_CRMV_ISU_CM_H_STR-CHECK_RUN_GUID sy-vline 
WA_CRMV_ISU_CM_H_STR-ISSUE_ID sy-vline 
WA_CRMV_ISU_CM_H_STR-ISSUE_GUID sy-vline 
WA_CRMV_ISU_CM_H_STR-REF_GUID sy-vline 
WA_CRMV_ISU_CM_H_STR-REF_TYPE sy-vline 
WA_CRMV_ISU_CM_H_STR-REF_ISSUE_RECORD sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGTY sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGNO sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGID sy-vline 
WA_CRMV_ISU_CM_H_STR-LINE sy-vline 
WA_CRMV_ISU_CM_H_STR-OUTDATED sy-vline 
WA_CRMV_ISU_CM_H_STR-NEWEST sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGV1 sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGV2 sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGV3 sy-vline 
WA_CRMV_ISU_CM_H_STR-MSGV4 sy-vline 
WA_CRMV_ISU_CM_H_STR-ERP_MSG sy-vline      INTO ld_text SEPARATED BY SPACE.

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