ABAP Select data from SAP table PSSCS_GE_CONTEXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSSCS_GE_CONTEXT
*  INTO TABLE @DATA(IT_PSSCS_GE_CONTEXT2).
*--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_PSSCS_GE_CONTEXT INDEX 1 INTO DATA(WA_PSSCS_GE_CONTEXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSSCS_GE_CONTEXT>-SXP_DATA = 1.
<PSSCS_GE_CONTEXT>-HEADER = 1.
<PSSCS_GE_CONTEXT>-VERSIONID = 1.
<PSSCS_GE_CONTEXT>-BEGDA = 1.
<PSSCS_GE_CONTEXT>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSSCS_GE_CONTEXT-REF_GUID, sy-vline,
  WA_PSSCS_GE_CONTEXT-EXTERNAL_ID, sy-vline,
  WA_PSSCS_GE_CONTEXT-PROCESS_TYPE, sy-vline,
  WA_PSSCS_GE_CONTEXT-DESCRIPTION, sy-vline,
  WA_PSSCS_GE_CONTEXT-DESCR_LANGUAGE, sy-vline,
  WA_PSSCS_GE_CONTEXT-LOGICAL_SYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSSCS_GE_CONTEXT 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_PSSCS_GE_CONTEXT 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_PSSCS_GE_CONTEXT INTO WA_PSSCS_GE_CONTEXT.


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

*Conversion exit ISOLA, internal->external for field DESCR_LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_CONTEXT-DESCR_LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_CONTEXT-DESCR_LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit TSTPS, internal->external for field HEAD_CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_CONTEXT-HEAD_CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_CONTEXT-HEAD_CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CRM_CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_CONTEXT-CRM_CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_CONTEXT-CRM_CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field SAVED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_CONTEXT-SAVED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_CONTEXT-SAVED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAIN_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSSCS_GE_CONTEXT-MAIN_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSSCS_GE_CONTEXT-MAIN_PARTNER.
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_PSSCS_GE_CONTEXT_STR, 
SXP_DATA TYPE STRING,
HEADER TYPE STRING,
VERSIONID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
REF_GUID TYPE STRING,
EXTERNAL_ID TYPE STRING,
PROCESS_TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
DESCR_LANGUAGE TYPE STRING,
LOGICAL_SYSTEM TYPE STRING,
CRM_RELEASE TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
HEAD_CHANGED_AT TYPE STRING,
OBJECT_TYPE TYPE STRING,
CRM_CHANGED_AT TYPE STRING,
ARCHIVING_FLAG TYPE STRING,
SAVED_AT TYPE STRING,
BUSINESS_PROCESS TYPE STRING,
CHNG_PROCESS TYPE STRING,
ORDERADM_H_DUMMY TYPE STRING,
BTX_CLASS TYPE STRING,
ACTIVATED TYPE STRING,
GED_EXECUTED TYPE STRING,
GPD_EXECUTED TYPE STRING,
GLAS_SET TYPE STRING,
UI_PROCESS TYPE STRING,
CONFIRMATION TYPE STRING,
EC_RERUN_REQ TYPE STRING,
BENEFIT_PROG TYPE STRING,
MAIN_PARTNER TYPE STRING,
MR_DATE_ID TYPE STRING,
MR_IDENT TYPE STRING,
MR_FAILED TYPE STRING,
IS_PURE_REDUCTION TYPE STRING,
ITEM TYPE STRING,
CUSTOMER_H TYPE STRING,
SXP_ID TYPE STRING,
CUSTOMER_H_DUMMY TYPE STRING,
CUSTOMER_I TYPE STRING,
STATUS TYPE STRING,
PARTNER TYPE STRING,
APPOINTMENT TYPE STRING,
ADDITIONAL_PAYM_RECIPIENTS TYPE STRING,
ELIGIBILITY_H TYPE STRING,
LINKAGE TYPE STRING,
AET_H TYPE STRING,
AET_H_DUMMY TYPE STRING,
DBA_EXT TYPE STRING,
DBA_DUMMY TYPE STRING,
CALC_BEGDA TYPE STRING,
CALC_ENDDA TYPE STRING,
FREQUENCY TYPE STRING,
CALC_TSTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSSCS_GE_CONTEXT_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_PSSCS_GE_CONTEXT_STR-SXP_DATA sy-vline 
WA_PSSCS_GE_CONTEXT_STR-HEADER sy-vline 
WA_PSSCS_GE_CONTEXT_STR-VERSIONID sy-vline 
WA_PSSCS_GE_CONTEXT_STR-BEGDA sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ENDDA sy-vline 
WA_PSSCS_GE_CONTEXT_STR-REF_GUID sy-vline 
WA_PSSCS_GE_CONTEXT_STR-EXTERNAL_ID sy-vline 
WA_PSSCS_GE_CONTEXT_STR-PROCESS_TYPE sy-vline 
WA_PSSCS_GE_CONTEXT_STR-DESCRIPTION sy-vline 
WA_PSSCS_GE_CONTEXT_STR-DESCR_LANGUAGE sy-vline 
WA_PSSCS_GE_CONTEXT_STR-LOGICAL_SYSTEM sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CRM_RELEASE sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CREATED_AT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CREATED_BY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CHANGED_AT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CHANGED_BY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-HEAD_CHANGED_AT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-OBJECT_TYPE sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CRM_CHANGED_AT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ARCHIVING_FLAG sy-vline 
WA_PSSCS_GE_CONTEXT_STR-SAVED_AT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-BUSINESS_PROCESS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CHNG_PROCESS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ORDERADM_H_DUMMY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-BTX_CLASS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ACTIVATED sy-vline 
WA_PSSCS_GE_CONTEXT_STR-GED_EXECUTED sy-vline 
WA_PSSCS_GE_CONTEXT_STR-GPD_EXECUTED sy-vline 
WA_PSSCS_GE_CONTEXT_STR-GLAS_SET sy-vline 
WA_PSSCS_GE_CONTEXT_STR-UI_PROCESS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CONFIRMATION sy-vline 
WA_PSSCS_GE_CONTEXT_STR-EC_RERUN_REQ sy-vline 
WA_PSSCS_GE_CONTEXT_STR-BENEFIT_PROG sy-vline 
WA_PSSCS_GE_CONTEXT_STR-MAIN_PARTNER sy-vline 
WA_PSSCS_GE_CONTEXT_STR-MR_DATE_ID sy-vline 
WA_PSSCS_GE_CONTEXT_STR-MR_IDENT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-MR_FAILED sy-vline 
WA_PSSCS_GE_CONTEXT_STR-IS_PURE_REDUCTION sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ITEM sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CUSTOMER_H sy-vline 
WA_PSSCS_GE_CONTEXT_STR-SXP_ID sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CUSTOMER_H_DUMMY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CUSTOMER_I sy-vline 
WA_PSSCS_GE_CONTEXT_STR-STATUS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-PARTNER sy-vline 
WA_PSSCS_GE_CONTEXT_STR-APPOINTMENT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ADDITIONAL_PAYM_RECIPIENTS sy-vline 
WA_PSSCS_GE_CONTEXT_STR-ELIGIBILITY_H sy-vline 
WA_PSSCS_GE_CONTEXT_STR-LINKAGE sy-vline 
WA_PSSCS_GE_CONTEXT_STR-AET_H sy-vline 
WA_PSSCS_GE_CONTEXT_STR-AET_H_DUMMY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-DBA_EXT sy-vline 
WA_PSSCS_GE_CONTEXT_STR-DBA_DUMMY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CALC_BEGDA sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CALC_ENDDA sy-vline 
WA_PSSCS_GE_CONTEXT_STR-FREQUENCY sy-vline 
WA_PSSCS_GE_CONTEXT_STR-CALC_TSTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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