ABAP Select data from SAP table DB6PMSA_ST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB6PMSA_ST 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 DB6PMSA_ST. 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 DB6PMSA_ST 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_DB6PMSA_ST TYPE STANDARD TABLE OF DB6PMSA_ST,
      WA_DB6PMSA_ST TYPE DB6PMSA_ST,
      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: <DB6PMSA_ST> TYPE DB6PMSA_ST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6PMSA_ST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6PMSA_ST
  INTO TABLE IT_DB6PMSA_ST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6PMSA_ST
*  INTO TABLE @DATA(IT_DB6PMSA_ST2).
*--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_DB6PMSA_ST INDEX 1 INTO DATA(WA_DB6PMSA_ST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6PMSA_ST ASSIGNING <DB6PMSA_ST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6PMSA_ST>-COMPTIME = 1.
<DB6PMSA_ST>-PARTITN = 1.
<DB6PMSA_ST>-AGENT_ID = 1.
<DB6PMSA_ST>-ARTIF_KEY = 1.
<DB6PMSA_ST>-CALLERFLAG = 1.

ENDLOOP.

LOOP AT IT_DB6PMSA_ST INTO WA_DB6PMSA_ST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6PMSA_ST-DBMSTRTTME, sy-vline,
  WA_DB6PMSA_ST-PRGVERS, sy-vline,
  WA_DB6PMSA_ST-STMT_NDNUM, sy-vline,
  WA_DB6PMSA_ST-STMT_TYPE, sy-vline,
  WA_DB6PMSA_ST-STMT_OPERA, sy-vline,
  WA_DB6PMSA_ST-SECTIONNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6PMSA_ST 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_DB6PMSA_ST 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_DB6PMSA_ST INTO WA_DB6PMSA_ST.


*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_DB6PMSA_ST_STR, 
COMPTIME TYPE STRING,
PARTITN TYPE STRING,
AGENT_ID TYPE STRING,
ARTIF_KEY TYPE STRING,
CALLERFLAG TYPE STRING,
DBMSTRTTME TYPE STRING,
PRGVERS TYPE STRING,
STMT_NDNUM TYPE STRING,
STMT_TYPE TYPE STRING,
STMT_OPERA TYPE STRING,
SECTIONNUM TYPE STRING,
QY_COSTEST TYPE STRING,
QY_CARDEST TYPE STRING,
DG_PARA TYPE STRING,
STMT_SORTS TYPE STRING,
TOT_SRT_TM TYPE STRING,
SRT_OF TYPE STRING,
RW_READ TYPE STRING,
RW_WRITTEN TYPE STRING,
INT_RW_DEL TYPE STRING,
INT_RW_UPD TYPE STRING,
INT_RW_INS TYPE STRING,
FETCH_CNT TYPE STRING,
STMT_START TYPE STRING,
STMT_STOP TYPE STRING,
CUR_NAME TYPE STRING,
CREATOR TYPE STRING,
PKG_NAME TYPE STRING,
STMTURCTS TYPE STRING,
STMTURCTMS TYPE STRING,
STMTSYCTS TYPE STRING,
STMTSYCTMS TYPE STRING,
NUM_SS TYPE STRING,
NUM_AGENTS TYPE STRING,
AGENTS_TOP TYPE STRING,
PL_D_LRS TYPE STRING,
PL_D_PRS TYPE STRING,
PL_I_LRS TYPE STRING,
PL_I_PRS TYPE STRING,
PL_TD_LRS TYPE STRING,
PL_TD_PRS TYPE STRING,
PL_TI_LRS TYPE STRING,
PL_TI_PRS TYPE STRING,
BLKCURSOR TYPE STRING,
STMTELAS TYPE STRING,
STMTELAMS TYPE STRING,
CONSISTNCY_TOKEN TYPE STRING,
PACKAGE_VERS_ID TYPE STRING,
PL_TEMP_XDA_L_RD TYPE STRING,
PL_TEMP_XDA_P_RD TYPE STRING,
POOL_XDA_L_READS TYPE STRING,
POOL_XDA_P_READS TYPE STRING,
STMT_LEN TYPE STRING,
STMT_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6PMSA_ST_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_DB6PMSA_ST_STR-COMPTIME sy-vline 
WA_DB6PMSA_ST_STR-PARTITN sy-vline 
WA_DB6PMSA_ST_STR-AGENT_ID sy-vline 
WA_DB6PMSA_ST_STR-ARTIF_KEY sy-vline 
WA_DB6PMSA_ST_STR-CALLERFLAG sy-vline 
WA_DB6PMSA_ST_STR-DBMSTRTTME sy-vline 
WA_DB6PMSA_ST_STR-PRGVERS sy-vline 
WA_DB6PMSA_ST_STR-STMT_NDNUM sy-vline 
WA_DB6PMSA_ST_STR-STMT_TYPE sy-vline 
WA_DB6PMSA_ST_STR-STMT_OPERA sy-vline 
WA_DB6PMSA_ST_STR-SECTIONNUM sy-vline 
WA_DB6PMSA_ST_STR-QY_COSTEST sy-vline 
WA_DB6PMSA_ST_STR-QY_CARDEST sy-vline 
WA_DB6PMSA_ST_STR-DG_PARA sy-vline 
WA_DB6PMSA_ST_STR-STMT_SORTS sy-vline 
WA_DB6PMSA_ST_STR-TOT_SRT_TM sy-vline 
WA_DB6PMSA_ST_STR-SRT_OF sy-vline 
WA_DB6PMSA_ST_STR-RW_READ sy-vline 
WA_DB6PMSA_ST_STR-RW_WRITTEN sy-vline 
WA_DB6PMSA_ST_STR-INT_RW_DEL sy-vline 
WA_DB6PMSA_ST_STR-INT_RW_UPD sy-vline 
WA_DB6PMSA_ST_STR-INT_RW_INS sy-vline 
WA_DB6PMSA_ST_STR-FETCH_CNT sy-vline 
WA_DB6PMSA_ST_STR-STMT_START sy-vline 
WA_DB6PMSA_ST_STR-STMT_STOP sy-vline 
WA_DB6PMSA_ST_STR-CUR_NAME sy-vline 
WA_DB6PMSA_ST_STR-CREATOR sy-vline 
WA_DB6PMSA_ST_STR-PKG_NAME sy-vline 
WA_DB6PMSA_ST_STR-STMTURCTS sy-vline 
WA_DB6PMSA_ST_STR-STMTURCTMS sy-vline 
WA_DB6PMSA_ST_STR-STMTSYCTS sy-vline 
WA_DB6PMSA_ST_STR-STMTSYCTMS sy-vline 
WA_DB6PMSA_ST_STR-NUM_SS sy-vline 
WA_DB6PMSA_ST_STR-NUM_AGENTS sy-vline 
WA_DB6PMSA_ST_STR-AGENTS_TOP sy-vline 
WA_DB6PMSA_ST_STR-PL_D_LRS sy-vline 
WA_DB6PMSA_ST_STR-PL_D_PRS sy-vline 
WA_DB6PMSA_ST_STR-PL_I_LRS sy-vline 
WA_DB6PMSA_ST_STR-PL_I_PRS sy-vline 
WA_DB6PMSA_ST_STR-PL_TD_LRS sy-vline 
WA_DB6PMSA_ST_STR-PL_TD_PRS sy-vline 
WA_DB6PMSA_ST_STR-PL_TI_LRS sy-vline 
WA_DB6PMSA_ST_STR-PL_TI_PRS sy-vline 
WA_DB6PMSA_ST_STR-BLKCURSOR sy-vline 
WA_DB6PMSA_ST_STR-STMTELAS sy-vline 
WA_DB6PMSA_ST_STR-STMTELAMS sy-vline 
WA_DB6PMSA_ST_STR-CONSISTNCY_TOKEN sy-vline 
WA_DB6PMSA_ST_STR-PACKAGE_VERS_ID sy-vline 
WA_DB6PMSA_ST_STR-PL_TEMP_XDA_L_RD sy-vline 
WA_DB6PMSA_ST_STR-PL_TEMP_XDA_P_RD sy-vline 
WA_DB6PMSA_ST_STR-POOL_XDA_L_READS sy-vline 
WA_DB6PMSA_ST_STR-POOL_XDA_P_READS sy-vline 
WA_DB6PMSA_ST_STR-STMT_LEN sy-vline 
WA_DB6PMSA_ST_STR-STMT_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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