ABAP Select data from SAP table CMS_LIQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMS_LIQ
*  INTO TABLE @DATA(IT_CMS_LIQ2).
*--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_CMS_LIQ INDEX 1 INTO DATA(WA_CMS_LIQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMS_LIQ>-MANDT = 1.
<CMS_LIQ>-LIQ_GUID = 1.
<CMS_LIQ>-OBJ_REF_GUID = 1.
<CMS_LIQ>-OBJSYSID = 1.
<CMS_LIQ>-LIQ_TYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMS_LIQ-LIQ_START_DATE, sy-vline,
  WA_CMS_LIQ-LIQ_END_DATE, sy-vline,
  WA_CMS_LIQ-LIQ_INI_BY, sy-vline,
  WA_CMS_LIQ-APPLN_DATE, sy-vline,
  WA_CMS_LIQ-ORDER_DATE, sy-vline,
  WA_CMS_LIQ-ORDER_RCVD_ON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMS_LIQ 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_CMS_LIQ 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_CMS_LIQ INTO WA_CMS_LIQ.


*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_CMS_LIQ_STR, 
MANDT TYPE STRING,
LIQ_GUID TYPE STRING,
OBJ_REF_GUID TYPE STRING,
OBJSYSID TYPE STRING,
LIQ_TYP TYPE STRING,
LIQ_START_DATE TYPE STRING,
LIQ_END_DATE TYPE STRING,
LIQ_INI_BY TYPE STRING,
APPLN_DATE TYPE STRING,
ORDER_DATE TYPE STRING,
ORDER_RCVD_ON TYPE STRING,
CLOSE_DCSN_DATE TYPE STRING,
CLOSE_DN_RCVD_ON TYPE STRING,
VAL_GUAR_AMT TYPE STRING,
VAL_GUAR_CURR TYPE STRING,
CALL_DATE_GUAR TYPE STRING,
ENFC_DATE_GUAR TYPE STRING,
ENFC_OBTAIN_IND TYPE STRING,
ENFC_TITLE_DESC TYPE STRING,
AFFIDAVIT_DATE TYPE STRING,
AFFIDAVIT_DESC TYPE STRING,
AMICABLE_DATE TYPE STRING,
AMICABLE_DESC TYPE STRING,
OBJ_EXP_PRC_TIME TYPE STRING,
OBJ_EXP_PROCEEDS TYPE STRING,
OBJ_EXP_PRC_CURR TYPE STRING,
REG_DATE TYPE STRING,
REQ_DATE TYPE STRING,
ATTCMT_DATE TYPE STRING,
TITLE_REQ_BEFORE TYPE STRING,
SETTLEMENT_DATE TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
SOURCEOFENTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMS_LIQ_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_CMS_LIQ_STR-MANDT sy-vline 
WA_CMS_LIQ_STR-LIQ_GUID sy-vline 
WA_CMS_LIQ_STR-OBJ_REF_GUID sy-vline 
WA_CMS_LIQ_STR-OBJSYSID sy-vline 
WA_CMS_LIQ_STR-LIQ_TYP sy-vline 
WA_CMS_LIQ_STR-LIQ_START_DATE sy-vline 
WA_CMS_LIQ_STR-LIQ_END_DATE sy-vline 
WA_CMS_LIQ_STR-LIQ_INI_BY sy-vline 
WA_CMS_LIQ_STR-APPLN_DATE sy-vline 
WA_CMS_LIQ_STR-ORDER_DATE sy-vline 
WA_CMS_LIQ_STR-ORDER_RCVD_ON sy-vline 
WA_CMS_LIQ_STR-CLOSE_DCSN_DATE sy-vline 
WA_CMS_LIQ_STR-CLOSE_DN_RCVD_ON sy-vline 
WA_CMS_LIQ_STR-VAL_GUAR_AMT sy-vline 
WA_CMS_LIQ_STR-VAL_GUAR_CURR sy-vline 
WA_CMS_LIQ_STR-CALL_DATE_GUAR sy-vline 
WA_CMS_LIQ_STR-ENFC_DATE_GUAR sy-vline 
WA_CMS_LIQ_STR-ENFC_OBTAIN_IND sy-vline 
WA_CMS_LIQ_STR-ENFC_TITLE_DESC sy-vline 
WA_CMS_LIQ_STR-AFFIDAVIT_DATE sy-vline 
WA_CMS_LIQ_STR-AFFIDAVIT_DESC sy-vline 
WA_CMS_LIQ_STR-AMICABLE_DATE sy-vline 
WA_CMS_LIQ_STR-AMICABLE_DESC sy-vline 
WA_CMS_LIQ_STR-OBJ_EXP_PRC_TIME sy-vline 
WA_CMS_LIQ_STR-OBJ_EXP_PROCEEDS sy-vline 
WA_CMS_LIQ_STR-OBJ_EXP_PRC_CURR sy-vline 
WA_CMS_LIQ_STR-REG_DATE sy-vline 
WA_CMS_LIQ_STR-REQ_DATE sy-vline 
WA_CMS_LIQ_STR-ATTCMT_DATE sy-vline 
WA_CMS_LIQ_STR-TITLE_REQ_BEFORE sy-vline 
WA_CMS_LIQ_STR-SETTLEMENT_DATE sy-vline 
WA_CMS_LIQ_STR-CREATED_BY sy-vline 
WA_CMS_LIQ_STR-CREATED_AT sy-vline 
WA_CMS_LIQ_STR-CHANGED_BY sy-vline 
WA_CMS_LIQ_STR-CHANGED_AT sy-vline 
WA_CMS_LIQ_STR-SOURCEOFENTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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