ABAP Select data from SAP table /SAPAPO/DM_PO_SCHED into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/DM_PO_SCHED 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 /SAPAPO/DM_PO_SCHED. 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 /SAPAPO/DM_PO_SCHED 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_/SAPAPO/DM_PO_SCHED TYPE STANDARD TABLE OF /SAPAPO/DM_PO_SCHED,
      WA_/SAPAPO/DM_PO_SCHED TYPE /SAPAPO/DM_PO_SCHED,
      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: </SAPAPO/DM_PO_SCHED> TYPE /SAPAPO/DM_PO_SCHED.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/DM_PO_SCHED
  INTO TABLE IT_/SAPAPO/DM_PO_SCHED.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/DM_PO_SCHED
*  INTO TABLE @DATA(IT_/SAPAPO/DM_PO_SCHED2).
*--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_/SAPAPO/DM_PO_SCHED INDEX 1 INTO DATA(WA_/SAPAPO/DM_PO_SCHED2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/DM_PO_SCHED ASSIGNING </SAPAPO/DM_PO_SCHED>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/DM_PO_SCHED>-METHOD = 1.
</SAPAPO/DM_PO_SCHED>-OM_ORDER_TYPE = 1.
</SAPAPO/DM_PO_SCHED>-ORDERID = 1.
</SAPAPO/DM_PO_SCHED>-SCHEDID = 1.
</SAPAPO/DM_PO_SCHED>-ITEMNO = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/DM_PO_SCHED INTO WA_/SAPAPO/DM_PO_SCHED.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/DM_PO_SCHED-SCHEDNO, sy-vline,
  WA_/SAPAPO/DM_PO_SCHED-PLANNING_TYPE, sy-vline,
  WA_/SAPAPO/DM_PO_SCHED-ORDER_STATUS, sy-vline,
  WA_/SAPAPO/DM_PO_SCHED-START_EFFECTIVITY, sy-vline,
  WA_/SAPAPO/DM_PO_SCHED-END_EFFECTIVITY, sy-vline,
  WA_/SAPAPO/DM_PO_SCHED-NO_GAPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/DM_PO_SCHED 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_/SAPAPO/DM_PO_SCHED 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_/SAPAPO/DM_PO_SCHED INTO WA_/SAPAPO/DM_PO_SCHED.


*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 TSTPS, internal->external for field START_EFFECTIVITY
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/DM_PO_SCHED-START_EFFECTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/DM_PO_SCHED-START_EFFECTIVITY.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit TSTPS, internal->external for field REQUIREMENT_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/DM_PO_SCHED-REQUIREMENT_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/DM_PO_SCHED-REQUIREMENT_TIME.
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_/SAPAPO/DM_PO_SCHED_STR, 
METHOD TYPE STRING,
OM_ORDER_TYPE TYPE STRING,
ORDERID TYPE STRING,
SCHEDID TYPE STRING,
ITEMNO TYPE STRING,
SCHEDNO TYPE STRING,
PLANNING_TYPE TYPE STRING,
ORDER_STATUS TYPE STRING,
START_EFFECTIVITY TYPE STRING,
END_EFFECTIVITY TYPE STRING,
NO_GAPS TYPE STRING,
REQUESTED_TIME_START TYPE STRING,
REQUESTED_TIME_END TYPE STRING,
TRPID TYPE STRING,
TTYPE TYPE STRING,
PRIORITY TYPE STRING,
SBCNTR_PROD_ORDID TYPE STRING,
CUOBJ TYPE STRING,
ACT_STATUS TYPE STRING,
AVAIL_TIME TYPE STRING,
GR_DURATION TYPE STRING,
GR_RESID TYPE STRING,
GR_CAPA_DEMAND TYPE STRING,
GR_BUCKET_DEMAND TYPE STRING,
GR_START_TIME TYPE STRING,
GR_ACTID TYPE STRING,
DELIVERY_TIME TYPE STRING,
TR_DURATION TYPE STRING,
TR_RESID TYPE STRING,
TR_CAPA_DEMAND TYPE STRING,
TR_BUCKET_DEMAND TYPE STRING,
TR_ACTID TYPE STRING,
STAGGING_TIME TYPE STRING,
GI_END_TIME TYPE STRING,
GI_DURATION TYPE STRING,
GI_RESID TYPE STRING,
GI_CAPA_DEMAND TYPE STRING,
GI_BUCKET_DEMAND TYPE STRING,
GI_ACTID TYPE STRING,
REQUIREMENT_TIME TYPE STRING,
TO_PEGAREA TYPE STRING,
TO_QUANTITY TYPE STRING,
TO_REAL_QUANTITY TYPE STRING,
TO_ORIG_QUANTITY TYPE STRING,
TO_CONF_QUANTITY TYPE STRING,
TO_CAT TYPE STRING,
TO_SUBLOC TYPE STRING,
TO_VERSION TYPE STRING,
TO_IGNORE_PEGGING TYPE STRING,
TO_EXT_FIXED TYPE STRING,
FROM_PEGAREA TYPE STRING,
FROM_QUANTITY TYPE STRING,
FROM_REAL_QUANTITY TYPE STRING,
FROM_CONF_QUANTITY TYPE STRING,
FROM_ORIG_QUANTITY TYPE STRING,
FROM_CAT TYPE STRING,
FROM_SUBLOC TYPE STRING,
FROM_VERSION TYPE STRING,
FROM_IGNORE_PEGGING TYPE STRING,
FROM_EXT_FIXED TYPE STRING,
VS_PLANNED TYPE STRING,
VALIDITY_DELDATE TYPE STRING,
R3_UPDCNTR TYPE STRING,
TECHS TYPE STRING,
BUYTYPE_CODE TYPE STRING,
ADVCODE TYPE STRING,
PRIO_REQ TYPE STRING,
SHLF_MIN TYPE STRING,
USE_SHLF TYPE STRING,
NO_REQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/DM_PO_SCHED_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_/SAPAPO/DM_PO_SCHED_STR-METHOD sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-OM_ORDER_TYPE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-ORDERID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-SCHEDID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-ITEMNO sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-SCHEDNO sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-PLANNING_TYPE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-ORDER_STATUS sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-START_EFFECTIVITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-END_EFFECTIVITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-NO_GAPS sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-REQUESTED_TIME_START sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-REQUESTED_TIME_END sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TRPID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TTYPE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-PRIORITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-SBCNTR_PROD_ORDID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-CUOBJ sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-ACT_STATUS sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-AVAIL_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_DURATION sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_RESID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_CAPA_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_BUCKET_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_START_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GR_ACTID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-DELIVERY_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TR_DURATION sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TR_RESID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TR_CAPA_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TR_BUCKET_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TR_ACTID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-STAGGING_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_END_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_DURATION sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_RESID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_CAPA_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_BUCKET_DEMAND sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-GI_ACTID sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-REQUIREMENT_TIME sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_PEGAREA sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_REAL_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_ORIG_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_CONF_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_CAT sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_SUBLOC sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_VERSION sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_IGNORE_PEGGING sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TO_EXT_FIXED sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_PEGAREA sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_REAL_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_CONF_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_ORIG_QUANTITY sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_CAT sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_SUBLOC sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_VERSION sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_IGNORE_PEGGING sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-FROM_EXT_FIXED sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-VS_PLANNED sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-VALIDITY_DELDATE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-R3_UPDCNTR sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-TECHS sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-BUYTYPE_CODE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-ADVCODE sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-PRIO_REQ sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-SHLF_MIN sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-USE_SHLF sy-vline 
WA_/SAPAPO/DM_PO_SCHED_STR-NO_REQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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