ABAP Select data from SAP table MSQBLOLCKS into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSQBLOLCKS
*  INTO TABLE @DATA(IT_MSQBLOLCKS2).
*--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_MSQBLOLCKS INDEX 1 INTO DATA(WA_MSQBLOLCKS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MSQBLOLCKS ASSIGNING <MSQBLOLCKS>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSQBLOLCKS>-SPID = 1.
<MSQBLOLCKS>-OBJECTNAME = 1.
<MSQBLOLCKS>-LOCKNAME = 1.
<MSQBLOLCKS>-KPID = 1.
<MSQBLOLCKS>-BLOCKEDBY = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSQBLOLCKS-LOCKRSC, sy-vline,
WA_MSQBLOLCKS-DBNAME, sy-vline,
WA_MSQBLOLCKS-LCKTYPE, sy-vline,
WA_MSQBLOLCKS-RSCLCKBIN, sy-vline,
WA_MSQBLOLCKS-LCKVALBLK, sy-vline,
WA_MSQBLOLCKS-INDNAME, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MSQBLOLCKS 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_MSQBLOLCKS 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_MSQBLOLCKS INTO WA_MSQBLOLCKS. *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_MSQBLOLCKS_STR,
SPID TYPE STRING,
OBJECTNAME TYPE STRING,
LOCKNAME TYPE STRING,
KPID TYPE STRING,
BLOCKEDBY TYPE STRING,
LOCKRSC TYPE STRING,
DBNAME TYPE STRING,
LCKTYPE TYPE STRING,
RSCLCKBIN TYPE STRING,
LCKVALBLK TYPE STRING,
INDNAME TYPE STRING,
LCKSTATUS TYPE STRING,
LCKREFCNT TYPE STRING,
LCKCARCNT TYPE STRING,
LCKLFETIME TYPE STRING,
ECID TYPE STRING,
LCKOWNER TYPE STRING,
PROSSTAT TYPE STRING,
PROSUSER TYPE STRING,
HOSTNAME TYPE STRING,
PROGNAME TYPE STRING,
WAITTYPE TYPE STRING,
EXECCMD TYPE STRING,
HOSTPROS TYPE STRING,END OF T_EKKO_STR. DATA: WA_MSQBLOLCKS_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_MSQBLOLCKS_STR-SPID sy-vline
WA_MSQBLOLCKS_STR-OBJECTNAME sy-vline
WA_MSQBLOLCKS_STR-LOCKNAME sy-vline
WA_MSQBLOLCKS_STR-KPID sy-vline
WA_MSQBLOLCKS_STR-BLOCKEDBY sy-vline
WA_MSQBLOLCKS_STR-LOCKRSC sy-vline
WA_MSQBLOLCKS_STR-DBNAME sy-vline
WA_MSQBLOLCKS_STR-LCKTYPE sy-vline
WA_MSQBLOLCKS_STR-RSCLCKBIN sy-vline
WA_MSQBLOLCKS_STR-LCKVALBLK sy-vline
WA_MSQBLOLCKS_STR-INDNAME sy-vline
WA_MSQBLOLCKS_STR-LCKSTATUS sy-vline
WA_MSQBLOLCKS_STR-LCKREFCNT sy-vline
WA_MSQBLOLCKS_STR-LCKCARCNT sy-vline
WA_MSQBLOLCKS_STR-LCKLFETIME sy-vline
WA_MSQBLOLCKS_STR-ECID sy-vline
WA_MSQBLOLCKS_STR-LCKOWNER sy-vline
WA_MSQBLOLCKS_STR-PROSSTAT sy-vline
WA_MSQBLOLCKS_STR-PROSUSER sy-vline
WA_MSQBLOLCKS_STR-HOSTNAME sy-vline
WA_MSQBLOLCKS_STR-PROGNAME sy-vline
WA_MSQBLOLCKS_STR-WAITTYPE sy-vline
WA_MSQBLOLCKS_STR-EXECCMD sy-vline
WA_MSQBLOLCKS_STR-HOSTPROS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.