" In a SAP system, the work process play a very important role. It is seen that a majority of the processing is done by work processes. Work processes execute dialog steps in user transactions, updates, lock administration can display the status of the work process running on your application server after logon. To display the status choose Administration --> System Administration ---> Monitor ---> System Monitoring ----> Process over view or Execute transaction SM50. To get the updated information, the display must be refreshed regularly. The administrator must regularly monitor the system processes for checking the appropriateness of the number and configuration. Generally possesses are monitored to obtain information. The information obtained can be used for many purposes. It can be used to determine, whether the number of work processes in your system is adequate to assess if the instance is working to its ultimate capacity and to gather information for troubleshooting or for tuning. The SAP work processes correspond to operating system processes, these processes can be monitored through other operating systems also. Or it can be said that process ID (PID) of the SAP system is the same as PID of the other operating systems. SAP has a runtime directory /usr/sap//SYS/exe/run. Some programs are present in this runtime directory for monitoring. You can monitor some of the work processes and the dispatcher from the operating system with the help of these monitoring programs. To display the overview of SAP application server choose System Monitoring ---> Servers. You can also display the overview of the work process running on this particular server in the SAP system. To display the overview of the work process first click on the desired server name. "
"A subset of Standard SQL that is fully integrated in ABAP is Open SQL statements. Their role is to help you by giving permission to access data irrespective of the database system, which the R/3 installation is using. The Data Manipulation Language (DML) part of the Standard SQL is present in the Open SQL. In other words, it gives you the permission to read (SELECT) and change (INSERT, UPDATE, DELETE) data. In the R/3 system, the tasks of the Data Definition Language (DDL) and Data Control Language (DCL) parts of the Standard SQL are performed by the ABAP dictionary and the authorization system."
For any ABAP Report or an executable giving the selection criterion is important. Presenting the user with selection screen is very easy using Select-Options and Parameters in SAP ABAP.
The basic for of Select-Options in SAP ABAP is as follows.
Select-options: s_vbeln for vbak-vbeln.
In the above statement s_vbeln is defined as an internal table. And it has the following fields.
SIGN: I OPTION: EQ LOW: 4969 HIGH: _________________________________________
In case the user enters a range from 4969 to 4977 then the output of the above code is
SIGN: I OPTION: BT LOW: 4969 HIGH: 4977 _______________________________________________
In case the user enters only selected values as 4969, 4970, 4971, 4972 the the output will be as follows.
SIGN: I OPTION: EQ LOW: 4969 HIGH: SIGN: I OPTION: EQ LOW: 4970 HIGH: SIGN: I OPTION: EQ LOW: 4971 HIGH: SIGN: I OPTION: EQ LOW: 4972 HIGH: SIGN: I OPTION: EQ LOW: 4973 HIGH: ______________________________________________
Note: The output shown above is for the internal table of select options. The result of the selected Sales Order will be different. You can run the code given above and see the output.
Always specify your conditions in the Where-clause instead of checking
them yourself with check statements. The database system can then use an index
(if possible) and the network load is considerably less.
Always use Pretty Printer and Extended Program Check before releasing the code.
Do not leave unused code in the program. Comment the code thoroughly. Align the comments and the Code. Follow the SAP Standards and SAP Best Practices guidelines. It’s a good practice to take a dump of the code on your local drive.
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