An ESQL operator is a character or symbol that you can use in expressions to specify relationships between fields or values.
ESQL supports the following groups of operators:
There are some restrictions on the application of some operators to data types; not all lead to a meaningful operation. These are documented where they apply to each operator.
Operators that return a boolean value (TRUE or FALSE), for example the greater than operator, are also known as predicates.
Related concepts
Message flows
Mappings
Related tasks
Developing message flow applications
Developing ESQL
Related reference
Built-in nodes
ESQL
ESQL operators
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