What is 'memory-only merge' in SAP HAN - SAP HANA?

memory-only merge - Overview

• Component: HAN

• Component Name: SAP HANA

• Description: SAP A A delta merge operation triggered manually by SQL statement that passes an optional parameter to omit the final step of the delta merge, that is, persisting main storage to disk.

memory-only merge - Details

• 
  Key Concepts: 
  Memory-only merge is a feature of SAP HANA that allows for the merging of data from multiple sources into a single memory-based table. This feature enables the user to quickly and easily combine data from different sources into one table, without having to write complex SQL queries. 
  
  How to use it: 
  To use memory-only merge, the user must first create a memory-based table in SAP HANA. This table can be created using the CREATE TABLE statement. Once the table is created, the user can then use the MERGE statement to combine data from multiple sources into the memory-based table. The MERGE statement allows the user to specify which columns from each source should be included in the merged table. 
  
  Tips & Tricks: 
  When using memory-only merge, it is important to ensure that all of the data sources being merged have compatible data types. If incompatible data types are used, then errors may occur when attempting to merge the data. Additionally, it is important to ensure that all of the columns being merged have compatible names and formats. 
  
  Related Information: 
  For more information on memory-only merge, please refer to SAP's official documentation on the topic. Additionally, there are many online tutorials and resources available that provide step-by-step instructions on how to use this feature in SAP HANA.