In SAP's ABAP (Advanced Business Application Programming), operators and expressions are fundamental components for performing various operations and calculations within programs. Here's an overview of ABAP operators and expressions:
1. Arithmetic Operators:
+ (Addition): Adds two operands.
- (Subtraction): Subtracts the second operand from the first.
* (Multiplication): Multiplies two operands.
/ (Division): Divides the first operand by the second.
** (Exponentiation): Raises the first operand to the power of the second.
Example:
DATA lv_result TYPE i. lv_result = 5 + 3. "lv_result will be 8
2. Comparison Operators:
EQ (Equal to)
NE (Not equal to)
GT (Greater than)
LT (Less than)
GE (Greater than or equal to)
LE (Less than or equal to)
Example:
DATA lv_result TYPE abap_bool. lv_result = 5 GT 3. "lv_result will be ABAP_TRUE
3. Logical Operators:
AND (Logical AND)
OR (Logical OR)
NOT (Logical NOT)
Example:
DATA lv_result TYPE abap_bool. lv_result = abap_true AND abap_false. "lv_result will be ABAP_FALSE
4. String Concatenation:
& (String concatenation operator): Combines two strings.
Example:
DATA lv_string TYPE string. lv_string = 'Hello' & ' ' & 'World'. "lv_string will be 'Hello World'
5. Assignment Operator:
= (Assignment operator): Assigns a value to a variable.
Example:
DATA lv_value TYPE i. lv_value = 42.
6. Conditional Operators:
COND (Conditional operator): A shorthand for writing conditional expressions.
Example:
DATA lv_result TYPE i. lv_result = COND #( WHEN 1 EQ 1 THEN 42 ELSE 0 ). "lv_result will be 42
7. Expression Evaluation:
ABAP evaluates expressions based on operator precedence, similar to other programming languages. Parentheses can be used to specify the order of evaluation.
Example:
DATA lv_result TYPE i. lv_result = (5 + 3) * 2. "lv_result will be 16
8. Built-in Functions:
ABAP provides numerous built-in functions for performing operations on data, such as mathematical functions (ABS, CEIL, FLOOR), string functions (CONCATENATE, CONV, SUBSTRING), date and time functions, and more.
Example:
DATA lv_absolute_value TYPE i. lv_absolute_value = ABS(-5). "lv_absolute_value will be 5
