ABAP Select data from SAP table /SAPWF/PIQAGR_APPRCHANGE_REQ00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPWF/PIQAGR_APPRCHANGE_REQ00 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 /SAPWF/PIQAGR_APPRCHANGE_REQ00. 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 /SAPWF/PIQAGR_APPRCHANGE_REQ00 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_/SAPWF/PIQAGR_APPRCHANGE_REQ00 TYPE STANDARD TABLE OF /SAPWF/PIQAGR_APPRCHANGE_REQ00,
      WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00 TYPE /SAPWF/PIQAGR_APPRCHANGE_REQ00,
      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: </SAPWF/PIQAGR_APPRCHANGE_REQ00> TYPE /SAPWF/PIQAGR_APPRCHANGE_REQ00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPWF/PIQAGR_APPRCHANGE_REQ00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPWF/PIQAGR_APPRCHANGE_REQ00
  INTO TABLE IT_/SAPWF/PIQAGR_APPRCHANGE_REQ00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPWF/PIQAGR_APPRCHANGE_REQ00
*  INTO TABLE @DATA(IT_/SAPWF/PIQAGR_APPRCHANGE_REQ002).
*--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_/SAPWF/PIQAGR_APPRCHANGE_REQ00 INDEX 1 INTO DATA(WA_/SAPWF/PIQAGR_APPRCHANGE_REQ002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPWF/PIQAGR_APPRCHANGE_REQ00 ASSIGNING </SAPWF/PIQAGR_APPRCHANGE_REQ00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPWF/PIQAGR_APPRCHANGE_REQ00>-SMOBJID = 1.
</SAPWF/PIQAGR_APPRCHANGE_REQ00>-MODREG_ID = 1.
</SAPWF/PIQAGR_APPRCHANGE_REQ00>-SMSTATUS = 1.
</SAPWF/PIQAGR_APPRCHANGE_REQ00>-SMSTATUST = 1.
</SAPWF/PIQAGR_APPRCHANGE_REQ00>-SMSHORT = 1.

ENDLOOP.

LOOP AT IT_/SAPWF/PIQAGR_APPRCHANGE_REQ00 INTO WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-SMSTEXT, sy-vline,
  WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-AGRID, sy-vline,
  WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-ATTNO, sy-vline,
  WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-AGRTYPE, sy-vline,
  WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-AGRSTAT, sy-vline,
  WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00-ARCH_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00 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_/SAPWF/PIQAGR_APPRCHANGE_REQ00 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_/SAPWF/PIQAGR_APPRCHANGE_REQ00 INTO WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00.


*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_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR, 
SMOBJID TYPE STRING,
MODREG_ID TYPE STRING,
SMSTATUS TYPE STRING,
SMSTATUST TYPE STRING,
SMSHORT TYPE STRING,
SMSTEXT TYPE STRING,
AGRID TYPE STRING,
ATTNO TYPE STRING,
AGRTYPE TYPE STRING,
AGRSTAT TYPE STRING,
ARCH_STATUS TYPE STRING,
AGRREMARK TYPE STRING,
AYEAR TYPE STRING,
APERIOD TYPE STRING,
AGRBEGDA TYPE STRING,
AGRENDDA TYPE STRING,
AGRDATEE TYPE STRING,
AGRDATEL TYPE STRING,
AGRWEIGHT TYPE STRING,
UPAGRID TYPE STRING,
LAST_DAY_ATT TYPE STRING,
GRADESYM TYPE STRING,
GRADE TYPE STRING,
GRADESCALE TYPE STRING,
AGRNOTRATED TYPE STRING,
AGRDATE TYPE STRING,
AGRCOMPLETED TYPE STRING,
NOTEID TYPE STRING,
REGNUM TYPE STRING,
GRADECHANGED TYPE STRING,
PUBLICATIONDATE TYPE STRING,
OTYPE TYPE STRING,
REALO TYPE STRING,
PLVAR TYPE STRING,
GRADSYMTEXT TYPE STRING,
GRADESCALETEXT TYPE STRING,
AGRTEXTTXT TYPE STRING,
AGRSTATTEXT TYPE STRING,
AGRREMARKTEXT TYPE STRING,
APPSERTEXT TYPE STRING,
AYEARTEXT TYPE STRING,
APERIODTEXT TYPE STRING,
REQ_GRADESYM TYPE STRING,
REQ_GRADESCALE TYPE STRING,
REQ_GRADE TYPE STRING,
REQ_AGRREMARK TYPE STRING,
REQ_AGRSTAT TYPE STRING,
REQ_GRADESYMTEXT TYPE STRING,
REQ_GRADESCALETEXT TYPE STRING,
REQ_AGRSTATTEXT TYPE STRING,
REQ_AGRREMARKTEXT TYPE STRING,
APPPOVED_GRADESYM TYPE STRING,
APPPOVED_GRADESCALE TYPE STRING,
APPPOVED_GRADE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_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_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-SMOBJID sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-MODREG_ID sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-SMSTATUS sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-SMSTATUST sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-SMSHORT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-SMSTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRID sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-ATTNO sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRTYPE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRSTAT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-ARCH_STATUS sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRREMARK sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AYEAR sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APERIOD sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRBEGDA sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRENDDA sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRDATEE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRDATEL sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRWEIGHT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-UPAGRID sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-LAST_DAY_ATT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADESYM sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADESCALE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRNOTRATED sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRDATE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRCOMPLETED sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-NOTEID sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REGNUM sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADECHANGED sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-PUBLICATIONDATE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-OTYPE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REALO sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-PLVAR sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADSYMTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-GRADESCALETEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRTEXTTXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRSTATTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AGRREMARKTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APPSERTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-AYEARTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APERIODTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_GRADESYM sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_GRADESCALE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_GRADE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_AGRREMARK sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_AGRSTAT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_GRADESYMTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_GRADESCALETEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_AGRSTATTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-REQ_AGRREMARKTEXT sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APPPOVED_GRADESYM sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APPPOVED_GRADESCALE sy-vline 
WA_/SAPWF/PIQAGR_APPRCHANGE_REQ00_STR-APPPOVED_GRADE sy-vline      INTO ld_text SEPARATED BY SPACE.

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