ABAP Keyword Documentation → ABAP - Reference → ABAP Syntax → ABAP Statements → Operators and Expressions
Operators
ABAP contains the following operators:
- Operators that perform special operations in operand positions:
- Declaration operators
The declaration operatorsDATA
andFIELD-SYMBOL
declare variables or field symbols in operand positions.
- Constructor operators
The constructor operatorsNEW
,VALUE
,CONV
,CORRESPONDING
,CAST
,REF
,EXACT
,REDUCE
,FILTER
,COND
, andSWITCH
construct values for data objects of specific data types in constructor expressions.
- Operators that join multiple operands in a single expression:
- Assignment operators
The assignment operator=
joins the source field and target field of an assignment. In the case of assignments, the special casting operator?=
performs a down cast. The operator=
also joins actual parameters with formal parameters, for example in procedure calls or when working with data clusters.
- Arithmetic operators
The arithmetic operators+
,-
,*
,/
,DIV
,MOD
, and ** join two or more numeric operands with an arithmetic expression. In addition, the characters+
and-
act as plus/minus signs in arithmetic expressions.
- Bit operators
The bit operatorsBIT-AND
,BIT-OR
, andBIT-XOR
join two or more byte-like operands with a bit expression. The bit operatorBIT-NOT
negates a byte-like operand.
- String operators
The string operator&&
chains two character-like operands to a string expression.
- Relational operators
Relational operators occur in relational expressions, which themselves are components of logical expressions. The relational operators=
,<>
,<
, >,<=
,>=
,BETWEEN
, and so on join two or more operands of any data type as a comparison expression. There are additional relational operators for specific data types. The predicate operatorIS
qualifies an operand.
- Boolean operators
The Boolean operatorsAND
,OR
, andEQUIV
join the results of individual logical expressions with a logical expression. The result of a logical expression is either true or false. The Boolean operatorNOT
negates the result of a logical expression.
- Operator that joins two operands in compilations:
- Literal operator
The literal operator&
joins two literals or two string templates with a literal or a string template.