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Basic Flow Control in ABAP
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The IF Statement
IF X =5.
WI!" #$ %!&e 'alue o( X is
5).
"*S"IF X =6.
WI!" #$ %!&e 'alue o( X is6).
"*S" .
WI!" #$ %X is neit&er 5 nor
6)."+,IF.
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Logical Expressions
*ogial "/ressions use #
"*A!I+A* "A!S
*ICA* "A!S
S!I+ CAIS+ "A!S
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Comparison Syntax
Is Equal to =, EQ
Is not equal to < >, >, GT
Greater than or equal to > =, = >, GE
Less than
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Logical Operators
AN!"N!T
!&e &ierar& o( t&e logial
o/erators is#
+! A+, and t&en .
7ie di((erent (rom reating 'ie8s9
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Good Programming Practice with
Logical Operators
I# not $ % = & '
or not $ ( = )an*
+ = % or % =
an* $ + = - '
.a*
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String Comparison Operators
Comparison Syntax
Contains only
Contains any
Contains strin/
Contains pattern
Contains not only
Contains not any
Contains no strin/
Contains no pattern
C!
CA
CS
C0
CN
NA
NS
N0
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The CASE Statement
CASE
S(12C!334
on5t #or/et
those
perio*s6
h e n
! S A " E
# $
7hen
8S"T54
h e n ! P I C % # $
h e n ! G E T & # $
h e n
! S R TA #$
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The &O Loop
,.
WI!" #$ %ello
8orld>).
"+,,.
? =4.
, ? !I"S.
WI!" #$ %ello
8orld>)."+,,.
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The 'ILE Loop
I( e/ression e'aluates to
!@" ode in loo/ is
eeuted.
I( e/ression e'aluates to
FA*S" ode in loo/ is
+! eeuted and
ontrol mo'es to a(ter"+,WI*".
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(ested Loops and Control Str)ct)res
, 2 !I"S.
WI!" #$ S-I+,"X.
, 3 !I"S.
WI!" # $ % % S-I+,"X. "+,,.
"+,,.
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The O( C'A(GE OF Statement
S"*"C! B F C@S!".+ CA+" F C@S!"-
C@+! C@S!"-
S!A!".
D.E
"+,+.
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The C'EC% Statement
, 10 !I"S.
C"C S-I+,"X G=
4.
WI!" #$ S-I+,"X.
"+,,.
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The E*IT Statement
IF S-S@HC G0.
"XI!.
"+,IF.
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The CO(TI(+E Statement
, 10 !I"S.
IF S-I+,"X 4.
C+!I+@" .
"+,IF.
WI!" #$ S-I+,"X."+,,.
