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 operatorsDATAandFIELD-SYMBOLdeclare variables or field symbols in operand positions.
- Constructor Operators
The constructor operatorsNEW,VALUE,CONV,CORRESPONDING,CAST,REF,EXACT,REDUCE,FILTER,COND, andSWITCHconstruct 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 addition assignment operator (+=), subtraction assignment operator (-=), multiplication assignment operator (*=), division assignment operator (/=), or concatenation assignment operator (**=) performs a calculation assignment. 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 signs in arithmetic expressions.
- Bit Operators
The bit operatorsBIT-AND,BIT-OR, andBIT-XORjoin two or more byte-like operands with a bit expression. The bit operatorBIT-NOTnegates 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 operatorISqualifies an operand.
- Boolean Operators
The Boolean operatorsAND,OR, andEQUIVjoin the results of individual logical expressions with a logical expression. The result of a logical expression is either true or false. The Boolean operatorNOTnegates 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.