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
If operand1 and operand2 have elementary data types, they are used to determine a common elementary
whose rules are used to perform the comparison. Operands that are not compatible with the comparison type are converted to this type. Comparisons with elementary comparison types are
Other versions: 7.31 | 7.40 | 7.54
Note
Previous assignments made to utility variables with certain types can be used to force comparison types and conversions other than a direct comparison of the operands.