ABAP Select data from SAP table CPS_TASK_LIST_MAINT_CHV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPS_TASK_LIST_MAINT_CHV
*  INTO TABLE @DATA(IT_CPS_TASK_LIST_MAINT_CHV2).
*--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_CPS_TASK_LIST_MAINT_CHV INDEX 1 INTO DATA(WA_CPS_TASK_LIST_MAINT_CHV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPS_TASK_LIST_MAINT_CHV>-MAINTAIN_MODE = 1.
<CPS_TASK_LIST_MAINT_CHV>-FLAG_BAR_POINTER = 1.
<CPS_TASK_LIST_MAINT_CHV>-SEQUENCE_NO = 1.
<CPS_TASK_LIST_MAINT_CHV>-ACTIVITY = 1.
<CPS_TASK_LIST_MAINT_CHV>-OPERATION_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPS_TASK_LIST_MAINT_CHV-INSPCHAR, sy-vline,
  WA_CPS_TASK_LIST_MAINT_CHV-NO_OF_SPEC_VALUE, sy-vline,
  WA_CPS_TASK_LIST_MAINT_CHV-MATERIAL, sy-vline,
  WA_CPS_TASK_LIST_MAINT_CHV-PLANT, sy-vline,
  WA_CPS_TASK_LIST_MAINT_CHV-VENDOR, sy-vline,
  WA_CPS_TASK_LIST_MAINT_CHV-CUSTOMER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPS_TASK_LIST_MAINT_CHV 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_CPS_TASK_LIST_MAINT_CHV 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_CPS_TASK_LIST_MAINT_CHV INTO WA_CPS_TASK_LIST_MAINT_CHV.


*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 SEQUENCE_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPS_TASK_LIST_MAINT_CHV-SEQUENCE_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPS_TASK_LIST_MAINT_CHV-SEQUENCE_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field ACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CPS_TASK_LIST_MAINT_CHV-ACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPS_TASK_LIST_MAINT_CHV-ACTIVITY.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field MEAS_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPS_TASK_LIST_MAINT_CHV-MEAS_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPS_TASK_LIST_MAINT_CHV-MEAS_UNIT.
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_CPS_TASK_LIST_MAINT_CHV_STR, 
MAINTAIN_MODE TYPE STRING,
FLAG_BAR_POINTER TYPE STRING,
SEQUENCE_NO TYPE STRING,
ACTIVITY TYPE STRING,
OPERATION_ID TYPE STRING,
INSPCHAR TYPE STRING,
NO_OF_SPEC_VALUE TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
SEARCH_FIELD TYPE STRING,
ITEM_NO_OF_PRODUCTION_RESOURCE TYPE STRING,
DEC_PLACES TYPE STRING,
MEAS_UNIT TYPE STRING,
MEAS_UNIT_ISO TYPE STRING,
TARGET_VAL TYPE STRING,
TARGET_VAL_NI TYPE STRING,
LW_TOL_LMT TYPE STRING,
LW_TOL_LMT_NI TYPE STRING,
UP_TOL_LMT TYPE STRING,
UP_TOL_LMT_NI TYPE STRING,
NO_OF_VALUE_CLASSES TYPE STRING,
CLASS_WIDTH TYPE STRING,
CLASS_WIDTH_NI TYPE STRING,
CLASS_MIDPOINT TYPE STRING,
CLASS_MIDPOINT_NI TYPE STRING,
UP_LMT_1 TYPE STRING,
UP_LMT_1_NI TYPE STRING,
LW_LMT_1 TYPE STRING,
LW_LMT_1_NI TYPE STRING,
UP_LMT_2 TYPE STRING,
UP_LMT_2_NI TYPE STRING,
LW_LMT_2 TYPE STRING,
LW_LMT_2_NI TYPE STRING,
UP_PLS_LMT TYPE STRING,
UP_PLS_LMT_NI TYPE STRING,
LW_PLS_LMT TYPE STRING,
LW_PLS_LMT_NI TYPE STRING,
UP_NEW_LMT TYPE STRING,
UP_NEW_LMT_NI TYPE STRING,
LW_NEW_LMT TYPE STRING,
LW_NEW_LMT_NI TYPE STRING,
DAT_UP_NEW_LMT TYPE STRING,
DAT_LW_NEW_LMT TYPE STRING,
IND_SELSET_OR_CODEGRP1 TYPE STRING,
CAT_TYPE1 TYPE STRING,
SEL_SET1 TYPE STRING,
PSEL_SET1 TYPE STRING,
IND_SELSET_OR_CODEGRP2 TYPE STRING,
CAT_TYPE2 TYPE STRING,
CODE_GROUP2 TYPE STRING,
PSEL_SET2 TYPE STRING,
IND_SELSET_OR_CODEGRP3 TYPE STRING,
CAT_TYPE3 TYPE STRING,
CODE_GROUP3 TYPE STRING,
PSEL_SET3 TYPE STRING,
IND_SELSET_OR_CODEGRP4 TYPE STRING,
CAT_TYPE4 TYPE STRING,
CODE_GROUP4 TYPE STRING,
PSEL_SET4 TYPE STRING,
IND_SELSET_OR_CODEGRP5 TYPE STRING,
CAT_TYPE5 TYPE STRING,
CODE_GROUP5 TYPE STRING,
PSEL_SET5 TYPE STRING,
MS_OBJECT TYPE STRING,
MS_OBJTYPE TYPE STRING,
MS_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPS_TASK_LIST_MAINT_CHV_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_CPS_TASK_LIST_MAINT_CHV_STR-MAINTAIN_MODE sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-FLAG_BAR_POINTER sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-SEQUENCE_NO sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-ACTIVITY sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-OPERATION_ID sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-INSPCHAR sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-NO_OF_SPEC_VALUE sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MATERIAL sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PLANT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-VENDOR sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CUSTOMER sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-SEARCH_FIELD sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-ITEM_NO_OF_PRODUCTION_RESOURCE sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-DEC_PLACES sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MEAS_UNIT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MEAS_UNIT_ISO sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-TARGET_VAL sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-TARGET_VAL_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_TOL_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_TOL_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_TOL_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_TOL_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-NO_OF_VALUE_CLASSES sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CLASS_WIDTH sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CLASS_WIDTH_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CLASS_MIDPOINT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CLASS_MIDPOINT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_LMT_1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_LMT_1_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_LMT_1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_LMT_1_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_LMT_2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_LMT_2_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_LMT_2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_LMT_2_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_PLS_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_PLS_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_PLS_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_PLS_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_NEW_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-UP_NEW_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_NEW_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-LW_NEW_LMT_NI sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-DAT_UP_NEW_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-DAT_LW_NEW_LMT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-IND_SELSET_OR_CODEGRP1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CAT_TYPE1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-SEL_SET1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PSEL_SET1 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-IND_SELSET_OR_CODEGRP2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CAT_TYPE2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CODE_GROUP2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PSEL_SET2 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-IND_SELSET_OR_CODEGRP3 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CAT_TYPE3 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CODE_GROUP3 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PSEL_SET3 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-IND_SELSET_OR_CODEGRP4 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CAT_TYPE4 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CODE_GROUP4 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PSEL_SET4 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-IND_SELSET_OR_CODEGRP5 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CAT_TYPE5 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-CODE_GROUP5 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-PSEL_SET5 sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MS_OBJECT sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MS_OBJTYPE sy-vline 
WA_CPS_TASK_LIST_MAINT_CHV_STR-MS_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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