Integration of SAP notes (error correction instructions)
What are the different areas when working with SAP systems?
Application layer: The application layer is the central component of the SAP ERP system and is therefore also referred to as the base system. All applications and calculations are executed here. The application layer communicates with both the database layer and the presentation layer. On the one hand, it requests data from the database layer, processes it and then passes it on to the presentation layer. On the other hand, data that is newly entered in the presentation layer is passed on to the database layer and stored there.
The prerequisite for employment is a relevant university degree (bachelor's degree, FH diploma) preferably in computer science, business informatics, mathematics or a scientific discipline as well as at least three years of practical experience. Ideally, you also have a completed scientific university education (master's degree, university diploma).
SAP Performance Optimization
The Security Audit Log (SAL) is one of the most important elements when it comes to security in your SAP landscape. With SAL critical and security relevant activities in SAP systems can be recorded and evaluated. The settings in SAL are relevant for secure continuous operation.
In order to make a transaction in cryptocurrencies, you do not have to let your bank know about it as you would for "normal" money, but you have to use the Private Key to prove that you own the coins. The transaction looks like a piece of the puzzle. Half of the puzzle piece consists of information about the coin set, time and public address of the sender or receiver. The other half is the signature of the private key belonging to the sent public address. Both halves make this piece unique. Changing only one piece of information would completely change the whole transaction or the appearance of the puzzle piece. This transaction is transferred to the network or to the miner and is checked for correctness first. If everything fits, the transaction will be sent to other miners who will do the same. Otherwise, the transaction is ignored. Miners try to integrate the transactions into a block. This is called mining and we have described it so that the miners put the puzzle pieces together into a puzzle (block). A small part of a block to be integrated follows from the block that was previously mined. If all miners accept the correctness of a completed block, they will all work the next one immediately. The puzzle (block) is fixed and is irrevocably connected to the block before or after. The blocks form a chain and are called blockchain, which contains all the transactions that have ever been made and is visible and unchangeable by everyone. In doing so, blockchain replaces a central institution and avoids double-spending, which ultimately gives value to a cryptocurrency. Smart Contracts The biggest advance compared to Bitcoin and similar applications is that second-generation blockchains, such as Ethereum, use the so-called Turing-Complete script language Solidity. This enables calculations to be made within the blockchain. While Bitcoin allows only rudimentary multi-signature functions, Ethereum opens the door to much more complex operations called smart contracts. Smart contracts are contracts in which a decentralised blockchain ensures their unchangeability and execution.
Use "Shortcut for SAP Systems" to accomplish many tasks in the SAP basis more easily and quickly.
Be able to start, stop, reconfigure, backup, and troubleshoot an SAP HANA 2.0 database SPS04.
Therefore a new HANA system like all other ERP systems is also interesting for attackers.