What is 'reference table query' in SAP BC-SYB-ESP - SAP Event Stream Processor?

reference table query - Overview

• Component: BC-SYB-ESP

• Component Name: SAP Event Stream Processor

• Description: Provides a means of looking up information in an external HANA database in response to an incoming event.

reference table query - Details

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  Key Concepts: 
  A reference table query is a type of query used in SAP Event Stream Processor (ESP) to access data stored in a reference table. A reference table is a database table that stores data that is used to look up values for other fields in the same or other tables. Reference tables are used to store static data, such as codes, descriptions, and other values that are not expected to change often. 
  
  How to use it: 
  Reference table queries are used to retrieve data from a reference table. The query can be used to retrieve a single value or multiple values from the reference table. The query can also be used to filter the data returned from the reference table based on certain criteria. 
  
  Tips & Tricks: 
  When using a reference table query, it is important to ensure that the query is optimized for performance. This can be done by using indexes on the reference table and by using filters in the query to limit the amount of data returned. 
  
  Related Information: 
  Reference tables are often used in conjunction with other database tables, such as master data tables or transaction data tables. It is important to understand how these tables are related and how they interact with each other in order to ensure that the data returned from the reference table query is