Refresh is the key word used in sap abap programming to get the fresh and modified data from mysap server. The previous programming sap abap key word is regarding recieve.
Basic form
REFRESH CONTROL ctrl FROM SCREEN scr.
Effect
Initializes the control ctrl defined by a CONTROLS statement according to its description in the screen scr . The screen scr does not have to match the initial screen for the control .
REFRESH - Delete an internal table
Variants
1. REFRESH itab.
2. REFRESH itab FROM TABLE dbtab.
3. REFRESH itab FROM SELECT-OPTIONS.
Variant 1
REFRESH itab.
Effect
The internal table itab is reset to its initial state, i.e. all table entries are deleted.
The return code value SY-SUBRC is undefined.
· The header entry of a table with a header line remains unchanged. It can be reset to its initial value using CLEAR .
· FREE itab can be used to free up the memory allocated to the table.
Variant 2
REFRESH itab FROM TABLE dbtab.
This variant is no longer maintained and should no longer be used (. Please use the SELECT ... INTO TABLE statement instead.
Effect
The internal table itab is deleted and it is then filled with the contents of the database table dbtab .
A generic argument can be used to specify a restriction to a particular part of the database table when filling (LOOP AT dbtab , READ TABLE dbtab ).
The table dbtab must be declared in the program using TABLES.
The return code value SY-SUBRC is undefined.
Example
Deleting an internal table MESSAGES , followed by filling the table with all messages from the table T100 with language key 'D' and ID 'RF' .
TABLES T100.
DATA BEGIN OF MESSAGES OCCURS 200.
INCLUDE STRUCTURE T100.
DATA END OF MESSAGES.
MESSAGES-TEXT = 'Delete me'.
APPEND MESSAGES.
T100-SPRSL = 'D'.
T100-ARBGB = 'RF'.
REFRESH MESSAGES FROM TABLE T100.
Variant 3
REFRESH itab FROM SELECT-OPTIONS.
This variant is no longer supported . The equivalent functionality is now available in the function module
RS_REFRESH_FROM_SELECTOPTIONS .
Effect
Deletes the internal table itab and then transfers the database selections and the selection parameters together with the values entered by the user.
Performance
The runtime for the execution of the REFRESH statement is around 5 ms (standard microseconds).
REFRESH - Refresh the SAPGUI interface
Basic form
REFRESH SCREEN.
This statement is no longer maintained and should therefore not be used.Instead, please use a SET USER-COMMAND f statement.
Effect
Refreshes the SAPGUI interface after receiving the results of the asynchronous Remote Function Call via RECEIVE RESULTS FROM FUNCTION func .
This form of the REFRESH statement simulates pressing the return key.
Using this variant only makes sense in connection with the asynchronous Remote Function Call (CALL FUNCTION func ...STARTING NEW TASK taskname ) after receiving the results of such a call within the FORM routine (RECEIVE RESULTS FROM FUNCTION func ). It has no effect in other environments.
It ensures that the last screen is processed again with the commad '%_RS'. You can see this value in the command<0> field in the top left corner of the current screen.
REFRESH
Delete an internal table
- REFRESH itab.
- REFRESH itab FROM TABLE dbtab.
- REFRESH itab FROM SELECT-OPTIONS.
Refresh the SAPGUI interface
- REFRESH SCREEN.
Initialize a control
- REFRESH CONTROL ctrl FROM SCREEN scr.
129
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Basic form
REFRESH CONTROL ctrl FROM SCREEN scr.
Effect
Initializes the control ctrl defined by a CONTROLS statement according to its description in the screen scr . The screen scr does not have to match the initial screen for the control .
REFRESH - Delete an internal table
Variants
1. REFRESH itab.
2. REFRESH itab FROM TABLE dbtab.
3. REFRESH itab FROM SELECT-OPTIONS.
Variant 1
REFRESH itab.
Effect
The internal table itab is reset to its initial state, i.e. all table entries are deleted.
The return code value SY-SUBRC is undefined.
· The header entry of a table with a header line remains unchanged. It can be reset to its initial value using CLEAR .
· FREE itab can be used to free up the memory allocated to the table.
Variant 2
REFRESH itab FROM TABLE dbtab.
This variant is no longer maintained and should no longer be used (. Please use the SELECT ... INTO TABLE statement instead.
Effect
The internal table itab is deleted and it is then filled with the contents of the database table dbtab .
A generic argument can be used to specify a restriction to a particular part of the database table when filling (LOOP AT dbtab , READ TABLE dbtab ).
The table dbtab must be declared in the program using TABLES.
The return code value SY-SUBRC is undefined.
Example
Deleting an internal table MESSAGES , followed by filling the table with all messages from the table T100 with language key 'D' and ID 'RF' .
TABLES T100.
DATA BEGIN OF MESSAGES OCCURS 200.
INCLUDE STRUCTURE T100.
DATA END OF MESSAGES.
MESSAGES-TEXT = 'Delete me'.
APPEND MESSAGES.
T100-SPRSL = 'D'.
T100-ARBGB = 'RF'.
REFRESH MESSAGES FROM TABLE T100.
Variant 3
REFRESH itab FROM SELECT-OPTIONS.
This variant is no longer supported . The equivalent functionality is now available in the function module
RS_REFRESH_FROM_SELECTOPTIONS .
Effect
Deletes the internal table itab and then transfers the database selections and the selection parameters together with the values entered by the user.
Performance
The runtime for the execution of the REFRESH statement is around 5 ms (standard microseconds).
REFRESH - Refresh the SAPGUI interface
Basic form
REFRESH SCREEN.
This statement is no longer maintained and should therefore not be used.Instead, please use a SET USER-COMMAND f statement.
Effect
Refreshes the SAPGUI interface after receiving the results of the asynchronous Remote Function Call via RECEIVE RESULTS FROM FUNCTION func .
This form of the REFRESH statement simulates pressing the return key.
Using this variant only makes sense in connection with the asynchronous Remote Function Call (CALL FUNCTION func ...STARTING NEW TASK taskname ) after receiving the results of such a call within the FORM routine (RECEIVE RESULTS FROM FUNCTION func ). It has no effect in other environments.
It ensures that the last screen is processed again with the commad '%_RS'. You can see this value in the command<0> field in the top left corner of the current screen.
REFRESH
Delete an internal table
- REFRESH itab.
- REFRESH itab FROM TABLE dbtab.
- REFRESH itab FROM SELECT-OPTIONS.
Refresh the SAPGUI interface
- REFRESH SCREEN.
Initialize a control
- REFRESH CONTROL ctrl FROM SCREEN scr.
129
Related Posts:
Business View and Mysap.com
ERP software selection
ERP implementation process and advantages SAP FINANCE cost center summery
MYsap crm business scenarios and sap solutions
MySAP CRM and customer relationship management
Customer Relationship Management and mysap an introduction
What is SAP R/3 introduction to mysap.comFICO sap abap reporting
