The Basis system comprises a total of three layers (Figure 1):
SE90 Repository Info System / Object Navigation
SAP Basis consists of three layers: a database layer, an application layer and a presentation layer. The database layer manages all the data of the SAP system in a database located on the database server and administered by a database management system (DBMS). The database supplies the connected SAP applications with the required data, data tables or system control tables. It also receives and stores new information generated by the user.
This prevents that just because someone would start a new chain, someone would accidentally recognise it as "reality". However, sometimes two miners working on the longest chain find a new block at the same time. This is called Orphan Blocks. The chain now has in principle two end pieces (2 parallel blocks). Different miners now work at different ends of the chain. The blockchain will then continue where the next block will be found first. The other block is called the Orphan Block, and it's sort of a dead branch of the blockchain. So how do you explain the above things to your grandma?
ORGANIZATION
If you want to skip the backgrounds and prefer a direct step-by-step guide, you can jump directly into the last section. Preparation For this workaround, you need access to both the source system and the BW system. In addition, they shall have the possibility to access the SE37 and execute functional modules there. Especially in production systems this is a very critical justification. So assume that you may need a Firefighter user for this action. Working in the BW system Now that the preparations have been completed, you have to call a FuBa on the BW system and on the source system, which solves the connection on the respective page. Beginning on the BW system, go into the transaction SE37 and call the function block "RSAR_LOGICAL_SYSTEM_DELETE": RSAR_LOGICAL_SYSTEM_DELETE Enter the required values here. The following table helps you fill in: Field Description I_LOGSYS The logical name of the source system. The name of the source system, as found in RSA1, will be entered here. In addition, this name can also be found in the DB table TBDLT. I_FORCE_DELETE Boolean, X = Delete despite error messages I_NO_TRANSPORT Boolean, X = This change should not be transported to subsequent systems I_NO_AUTHORITY Boolean, X = Ignore Permission Checks Work in the source system In the source system, go to transaction SE37 and call the function block "RSAP_BIW_DISCONNECT" : The descriptions of the fields are as follows. These can be found in the RSBASIDOC source system connection table Field Description I_BIW_LOGSYS The logical name of the BW system. In the RSBASIDOC table, find the correct value in the column "RLOGSYS". I_OLTP_LOGSYS The logical name of the source system. The column ‘SLOGSYS’ in the table RSBASIDOC. I_FORCE_DELETE The logical name of the BW system. In the RSBASIDOC table, find the correct value in the column "RLOGSYS". Completion In the end, you have to call the respective function block in the BW and source system, fill in the parameters and execute the function block.
Projects: Your SAP Basis administrator plays a key role in planning and executing system upgrades and migrations. He is also responsible for transport management and tests software updates to ensure they are compatible with the landscape. In addition, he must ensure that they are installed in the correct order.
Tools such as "Shortcut for SAP Systems" are extremely useful in basic administration.
Significant changes have also been brought about by SAP's cloud strategy.
The first step is to copy the files to the transport directory of the SAP system.