Like other data objects, you can use internal tables as operands in logical expressions.

.... <itab1> <operator> <itab2> ...

For <operator>, all operators listed in the table in Comparisons Between Data Types can be used (EQ, =, NE, <>, ><, GE, >=, LE, <=, GT, >, LT, <).

If you are using internal tables with header lines, remember that the header line and the body of the table have the same name. If you want to address the body of the table in a comparison, you must place two brackets ([ ]) after the table name.

The first criterion for comparing internal tables is the number of lines they contain. The more lines an internal table contains, the larger it is. If two internal tables contain the same number of lines, they are compared line by line, component by component. If components of the table lines are themselves internal tables, they are compared recursively. If you are testing internal tables for anything other than equality, the comparison stops when it reaches the first pair of components that are unequal, and returns the corresponding result.

Скажите пожалуйста,
есть ли эффективный способ сравнить содержимое двух внутренних таблиц с одинаковой структурой? может в САПе какой-нибудь Ф.М. или оператор грешным делом завалялся?

If iTab1[] = iTab2[].