ABAP Select data from SAP table CCREQMNTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCREQMNTR
*  INTO TABLE @DATA(IT_CCREQMNTR2).
*--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_CCREQMNTR INDEX 1 INTO DATA(WA_CCREQMNTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCREQMNTR>-MANDT = 1.
<CCREQMNTR>-CHMLCMPLNCREQUESTUUID = 1.
<CCREQMNTR>-CHMLCMPLNCREQUESTNAVGNLINK = 1.
<CCREQMNTR>-MATERIAL = 1.
<CCREQMNTR>-PRODUCTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCREQMNTR-MATERIALGROUP, sy-vline,
  WA_CCREQMNTR-MATERIALGROUPNAME, sy-vline,
  WA_CCREQMNTR-CHMLCMPLNCREQORIGINPROC, sy-vline,
  WA_CCREQMNTR-CHMLCMPLNCREQORIGINPROCNAME, sy-vline,
  WA_CCREQMNTR-CHMLCMPLNCREQUESTORIGINTYPE, sy-vline,
  WA_CCREQMNTR-CHMLCMPLNCREQUESTORIGINNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCREQMNTR 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_CCREQMNTR 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_CCREQMNTR INTO WA_CCREQMNTR.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CCREQMNTR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCREQMNTR-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field PRODCMPLNCLOGSDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCREQMNTR-PRODCMPLNCLOGSDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCREQMNTR-PRODCMPLNCLOGSDOCUMENT.
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_CCREQMNTR_STR, 
MANDT TYPE STRING,
CHMLCMPLNCREQUESTUUID TYPE STRING,
CHMLCMPLNCREQUESTNAVGNLINK TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
CHMLCMPLNCREQORIGINPROC TYPE STRING,
CHMLCMPLNCREQORIGINPROCNAME TYPE STRING,
CHMLCMPLNCREQUESTORIGINTYPE TYPE STRING,
CHMLCMPLNCREQUESTORIGINNAME TYPE STRING,
CHMLCMPLNCBUSINESSPROCESS TYPE STRING,
CHMLCMPLNCBUSINESSPROCESSNAME TYPE STRING,
CHMLCMPLNCREQUESTSUBJECTMATTER TYPE STRING,
COUNTRY TYPE STRING,
SALESORGANIZATION TYPE STRING,
ACTIVEPLANT TYPE STRING,
CHMLCMPLNCREQCMPLNCPROC TYPE STRING,
CHMLCMPLNCREQCMPLNCPROCNAME TYPE STRING,
DUEDATECRITICALITY TYPE STRING,
CHMLCMPLNCREQUESTDUEDATE TYPE STRING,
CHMLCMPLNCREQBPPROCESSOR TYPE STRING,
CHMLCMPLNCREQBPPROCESSORNAME TYPE STRING,
CHMLCMPLNCREQBPREQUESTER TYPE STRING,
CHMLCMPLNCREQBPREQUESTERNAME TYPE STRING,
CHMLCMPLNCREQREQUESTER TYPE STRING,
CHMLCMPLNCREQREQUESTERNAME TYPE STRING,
CHMLCMPLNCREQUESTPROCDATETIME TYPE STRING,
SALESDOCUMENT TYPE STRING,
PRODCMPLNCLOGSDOCUMENT TYPE STRING,
CHMLCMPLNCREQUESTPRGRSSTATUS TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCREQMNTR_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_CCREQMNTR_STR-MANDT sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTUUID sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTNAVGNLINK sy-vline 
WA_CCREQMNTR_STR-MATERIAL sy-vline 
WA_CCREQMNTR_STR-PRODUCTNAME sy-vline 
WA_CCREQMNTR_STR-MATERIALGROUP sy-vline 
WA_CCREQMNTR_STR-MATERIALGROUPNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQORIGINPROC sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQORIGINPROCNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTORIGINTYPE sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTORIGINNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCBUSINESSPROCESS sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCBUSINESSPROCESSNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTSUBJECTMATTER sy-vline 
WA_CCREQMNTR_STR-COUNTRY sy-vline 
WA_CCREQMNTR_STR-SALESORGANIZATION sy-vline 
WA_CCREQMNTR_STR-ACTIVEPLANT sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQCMPLNCPROC sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQCMPLNCPROCNAME sy-vline 
WA_CCREQMNTR_STR-DUEDATECRITICALITY sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTDUEDATE sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQBPPROCESSOR sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQBPPROCESSORNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQBPREQUESTER sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQBPREQUESTERNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQREQUESTER sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQREQUESTERNAME sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTPROCDATETIME sy-vline 
WA_CCREQMNTR_STR-SALESDOCUMENT sy-vline 
WA_CCREQMNTR_STR-PRODCMPLNCLOGSDOCUMENT sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCREQUESTPRGRSSTATUS sy-vline 
WA_CCREQMNTR_STR-CHMLCMPLNCINFOUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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