ABAP Keyword Documentation → ABAP - Reference → Program Flow → Expressions and Functions for Logical Expressions → log_exp - Logical Expressions → log_exp - Comparisons → log_exp Comparison Rules → log_exp - Comparing Elementary Data Types
log_exp - Comparing Calculation Expressions
All calculation expressions can be specified as operands for logical comparisons.
The table below lists all combinations that are possible for calculation expressions in logical comparisons:
| One page | Comparison Operator | Other page | |
|---|---|---|---|
| Single operand with numeric data type orarithmetical expression | =, EQ,<>, NE, <, LT, >, GT, <=, LE, >=, GE |
Arithmetical expression | |
| Single operand with any elementary data type orstring expression | =, EQ,<>, NE, <, LT, >, GT, <=,LE, >=, GE,CO, CN,CA, NA, CS, NS, CP, NP |
String expression | |
| Single operand with byte-type data type orbit expression | =, EQ,<>, NE, <, LT, >, GT, <=,LE, >=, GE,BYTE-CO, BYTE-CN,BYTE-CA, BYTE-NA, BYTE-CS,BYTE-NS, O, Z, M |
Bit expression |
The comparison type is determined differently depending on the type of calculation expression.
Other versions: 7.31 | 7.40 | 7.54
Note
Logical expressions cannot yet be compared. Instead, they can be combined using
Boolean operators,
where the link with the operator EQUIV corresponds to the comparison of the resulting
logical values concerning equality.
Continue
log_exp - Comparing Arithmetic Expressions