Internal Table Counting

[Former Member]

Hello everyone,

I want to be able to SELECT COUNT(*) from an internal table where a certain

condition exists i.e. COL1 = 'A' like you would do with a normal database table.

Does anyone have any tricks up their sleeves to do this???

Andy

[Former Member]

Hi

If you want to find the maximum, minimum, sum and average value or the count of a database column, use a select list with aggregate functions instead of computing the aggregates yourself. Some of the Aggregate functions allowed in SAP are MAX, MIN, AVG, SUM, COUNT, COUNT( * )

Consider the following extract.

            Maxno = 0.

            Select * from zflight where airln = ‘LF’ and cntry = ‘IN’.

             Check zflight-fligh > maxno.

             Maxno = zflight-fligh.

            Endselect.

The above mentioned code can be much more optimized by using the following code.

Select max( fligh ) from zflight into maxno where airln = ‘LF’ and cntry = ‘IN’.

If you want to count number of records then

LV_COUNT = 0.

LOOP AT IT_OUTPUT INTO WA_OUTPUT.

LV_COUNT = LV_COUNT + 1.

WA_OUTPUT-COUNT = LV_COUNT.

APPEND WA_OUTPUT TO IT_OUTPUT_1.

ENDLOOP.

REFRESH IT_OUTPUT.

IT_OUTPUT = IT_OUTPUT_1.

reward if usefull

[amit_khare]

We cannot directly have the count.

Check these options -

You cannot find the count in one direct statement. You will have to use the count() in your select, or if that is not possible, then:

Easy option:

loop at itab where field1 = condition1.

counter = counter + 1.

endloop.

A lesser easy way, and not always feasible:

itab_copy[] = itab[].

delete itab_copy where field1 NE condition1.

describe table itab_copy lines lv_lines.

~ As found in forum

Regards,

Amit

Reward all helpful replies.

[Former Member]

hi

good

go through this link

http://help.sap.com/saphelp_nw2004s/helpdata/en/9f/dba09d35c111d1829f0000e829fbfe/content.htm

thanks

mrutyun^

[Former Member]

Hi,

Use

loop at itab where field1 = condition1 (e.g col1 = 'A').

counter = counter + 1.

endloop.

If it is helpful pls rewards points.

Regards

Srimanta