Database layer
The area of expertise of an SAP Basis Admin should include:
The Queue determines which support packages are inserted into your system in which order by the SAP Patch Manager. If the queue is not yet fully defined, you must define the queue from the available support packages. If the Queue is already fully defined, it is only displayed; they no longer have the ability to change the selection. However, you can delete the queue completely with Queue [page 37]. Note that your system is inconsistent when you delete the queue after objects have been imported (for example, after an error in the DDIC_IMPORT step and following). The deletion in these SPAM steps should only be used for troubleshooting and you should repeat the insertion of the support packages as soon as possible. The SPAM transaction ensures that only support packages that match your system are displayed in the queue. Support packages intended for another release or an uninstalled add-on will not appear in the queue, even if they are loaded into your SAP system. For more information, see Rules for the Queue [page 19]. You must define the queue before you insert support packages. Prerequisites You have loaded the appropriate support packages with the SPAM into your SAP system [page 15]. Procedure To define a queue, select View/Define SPAM on the entry screen of the transaction. The Select Component dialogue box appears. You will see the list of installed software components (e.g. SAP_BASIS, SAP_HR, SAP_BW, Add-On). Select the desired component. You see the available queue. This queue contains the support packages available for the selected component in your system, and any required Conflict Resolution Transports (CRT), as well as associated Add-On Support Packages. You can: If the queue you see matches your wishes, you can accept the queue with Queue confirm and leave this selection window.
The value for abap/heap_area_total can also be set dynamically in the lower pane. Once you click on the "Apply" button, the values are changed until the next reboot of your system. In addition, the report also provides ways to analyse the global extended global memory hidden behind the two buttons "EG Overview" and "EG Dump".
Flexible response to peak loads
Meanwhile, there are other ways to build consensus. But, for the most part, the following three options have proven effective as a consensus mechanism: 1) Proof of Work 2) Proof of Stake 3) Proof of Importance The differences are presented in another blog post. How do blocks form in a blockchain? Each block will build irrevocably on an older block. If you were to remove the block, you would also have to remove all blocks above it, which would destroy the entire chain of blocks. Because each new block also contains information from its predecessor block. This is very important for understanding the immutability of a blockchain. If you were to manipulate a block afterwards, you would have to adjust all the blocks that follow. The effort would be so infinitely large and expensive that such a manipulation can practically not be implemented. You can think of it as this. A blockchain arises from the cryptographically linked blocks (puzzles) full of transactions (puzzle pieces) and therefore cannot be changed without destroying the entire blockchain. For this reason, a blockchain is seen as an immutable transaction history agreed upon by a decentralised community. A blockchain is programmed to work with each miner on the longest part of the blockchain, as this is obviously the chain in which most of the work has been invested.
"Shortcut for SAP Systems" is a PC application that simplifies or even facilitates many activities in the SAP basis.
On "www.sap-corner.de" you will also find useful information about SAP basis.
This includes, among other things, user and authorization management as well as the configuration of interfaces via RFC.