CURS 2 - Tipuri de Date

7/25/2019 CURS 2 - Tipuri de Date

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DATA TYPES


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Predefned data types

SAP AG 1999

string

Predefined ABAP Types

p

i

f

n

c

d

t

x

xstring

Data type

Numeric types

4

8

1 .. 16

Integer

Floating point numer

Pac!ed numer

"tring#$e%adecimal

Fi%ed

lengt$

Description "tatic lengt$ in

ytes

"e&uence of digits

"e&uence of c$aracters

Date

Time

'e%idecimal code

"e&uence of c$aracters

'e%idecimal code

1 .. 6(()(

1 .. 6(()(

8

6

1 .. 6(()(

are split into*

+ules for storage

,alue range

Arit$metic used

-perations on its

$aracter types

'e%adecimal

+untime system ad/usts lengt$

automatically

$aracter string operations

0alloed for all types2

3 date calculations

3 time calculations

Attriutes

,ariale

lengt$


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Numeric types : TYPE i -

INTEGER Deault feld lengt ! " #ytes

$a%imum feld lengt ! " #ytes

Initial &alue ! '

Te &alue range ( type I num#ers is -)**+, t( )**+,-, andincludes (nly whole

num#ers N(n-integer results ( aritmetic (perati(ns .egracti(ns/ are r(unded0 n(t

truncated

DATA int TYPE i. int = 4 / 10. " result: 0 int = 5 / 10. " result: 1

Y(u can use type I data (r c(unters0 num#ers ( items0 inde%es0time peri(ds0 and s( (n


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Numeric types: TYPE p -

PA12EDDeault lengt ! 3

$a%imum lengt ,4 .in #ytes/

Initial &alue ! '

Type P data all(5s digits ater te decimal p(int Te num#er (decimal places is generic0 and is determined in te pr(gram Te&alue range ( type P data depends (n its si6e and te num#er (digits ater te decimal p(int Te &alid si6e can #e any &alue r(m ,t( ,4 #ytes T5( decimal digits are packe into one !te# whilethe last !te c(ntains (ne digit and te sign 7p t( ," digits are

all(5ed ater te decimal p(int Te initial &alue is 6er(8en 5(r9ing 5it type P data0 it is a g((d idea t( set te pr(gramattri#ute Fixed point arithmetic.Otherwise, type P numbers aretreated as integers.

Y(u can use type P data (r suc &alues as distances0 5eigts0am(unts ( m(ney0 and s( (n


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Numeric types: TYPE -; decimals0 depending (n te $oatin%point arith&etic o' the harware plat'or&. (ince tpe ) atais internally c(n&erted t( a #inary system0 r(unding err(rs can (ccurAlt(ug te A?AP pr(cess(r tries t( minimi6e tese e@ects0 y(u

s(uld n(t use type data i ig accuracy is reuired Instead0 usetype P data

Y(u use type felds 5en y(u need t( c(pe 5it &ery large &alueranges and r(unding err(rs are n(t critical

You shoul there'ore onl use $oatin%*point nu&!ers 'orappro+i&ations.


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Numeric types -summary

SAP AG 1999

"ummary* +ecommendations for sing NumericData Types

If you need t$is*If you need t$is* se t$is predefined ABAP type*se t$is predefined ABAP type*

Integers onlyType i5 since calculations using integer

arit$metic are fastest

Decimal numers for

usiness calculations Type p

Decimal numers for

roug$ calculations

performed on ery small

or ery large numers

Type f


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1aracter types: TYPE c -1BARInitial lengt ! ,

$a%imum lengt ! 4>>+>

Initial &alue ! SPA1E


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1aracter types: TYPE n C

N7$1Initial lengt ! ,


Initial &alue ! '1an c(ntain (nly digits: 'F

1an #e used (r aritmetic calculati(ns


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1aracter types: TYPE d CDATE;engt ! 3

Initial &alue ! ''''''''

(rmat YYYY$$DD

1an #e used (r calculati(ns0 (r e%ample:1an add a num#er t( a date0 te result is a date

1an su#stract a num#er r(m a date0 te result is adate

1an su#stract ) dates0 te result is a num#er .indays/

I (ne date is m(&ed int( a numeric feld0 te resultis te num#er ( days since ',',''',


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1aracter types: TYPE t CTI$E;engt ! 4

Initial &alue ! ''''''

(rmat BB$$SS1an use te same calculati(ns as (r a date

feld0 #ut te &alues 5ill #e in sec(nds (re%ample i 5e e%tract t5( timestamps0 te

result is in sec(nds


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Be%adecimal types: TYPE%Initial lengt ! ,


Deault &alue ! %'',ne !te is represented #y a two*i%it

he+aeci&al ispla. The -els with thistpe are calle he+aeci&al -els.


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ARIA?;E ;ENGTB TYPES :

string AND %stringSTRING ! seuence ( caracters

HSTRING ! e%adecimal c(de

Te lengt is adusted aut(matically #y tesystem at runtime


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;


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;.>/ TYPE nTYPES: tynum TYPE p DE1I$A;S )

TYPES: tymatnr TYPE matnr


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;


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TYPES IN A?APDI1TI


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A?AP DI1TI


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A?AP DI1TI


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;ITERA;SNum#er literals

DATA nu&!er TYPE i 7A28E *194.

;?@.

,7E 100 T, nu&!er.

Te%t literalsDATA te+tB10CTYPE c 7A28E AFDG.

;


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TEHT SY$?


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1


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7sing $


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7sing $


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7SING 8RITE T

CURS 2 - Tipuri de Date

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