Counting all the rows in a table

I've just come across what I think is a big oversight in the Power Query UI: it doesn't seem to be possible to find the total number of rows in a table using just the functionality available in the UI. I can do this very easily if I write my own expression
using Table.RowCount(), but I would have expected to be able to do this through the UI. At the moment, when I go to the Group By dialog (which is where I'd expect to be able to do this) and delete all the columns in the Group By section the OK button gets
greyed out.
Am I missing something here?
Chris
Check out my MS BI blog I also do
SSAS, PowerPivot, MDX and DAX consultancy and run
public SQL Server and BI training courses in the UK

Hi Miguel,
No, what I was talking about was to be able to use the Group By dialog and have no column to group by - that's to say, I'd just want to be able to count the number of rows in a table (or return the sum of all values in a column, or the min/max etc) and return
a single value. I know I could do this by inserting an artificial column that only contains one distinct value, and using that in the Group By, or by writing my own expression that uses Table.RowCount(), but it seems like a very basic operation that should
be easier to do in the UI.
Chris
Check out my MS BI blog I also do
SSAS, PowerPivot, MDX and DAX consultancy
and run public SQL Server and BI training courses in the UK

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IS
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select table_name, num_rows
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where owner='MAXDEV';
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END LOOP;
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Thanks for any help Tony

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CREATE TYPE email_varray AS VARRAY(3) OF varchar2(30);
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insert into TEST_TAB (ID1, ID2, LAST_MODIFIED)
values ('416208000770698', '336015000385349', to_date('15-11-2009 07:14:56', 'dd-mm-yyyy hh24:mi:ss'));
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insert into TEST_TAB (ID1, ID2, LAST_MODIFIED)
values ('208104000385349', '336015000385349', to_date('15-11-2009 07:15:13', 'dd-mm-yyyy hh24:mi:ss'));
3. Create test procedure:
CREATE OR REPLACE PROCEDURE TEST_PROC IS
TYPE id1_typ is table of TEST_TAB.ID1%TYPE;
TYPE id2_typ is table of TEST_TAB.ID2%TYPE;
id1_arr id1_typ;
id2_arr id2_typ;
CURSOR My_Crs IS
SELECT ID1, ID2
FROM TEST_TAB
WHERE ID2 = '336015000385349'
FOR UPDATE;
BEGIN
OPEN My_Crs;
LOOP
FETCH My_Crs bulk collect
INTO id1_arr, id2_arr LIMIT 1;
Forall i in 1 .. id1_arr.COUNT
UPDATE TEST_TAB
SET LAST_MODIFIED = SYSDATE
where ID2 = id2_arr(i)
and ID1 = id1_arr(i);
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CLOSE My_Crs;
COMMIT;
EXCEPTION
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RAISE_APPLICATION_ERROR(-20000,
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END TEST_PROC;
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create or replace procedure check_record_locked(p_id in TEST_TAB.ID1%type) is
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select 'dummy'
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and ID1 = p_id
for update nowait;
e_resource_busy exception;
pragma exception_init(e_resource_busy, -54);
begin
open c;
close c;
dbms_output.put_line('Record ' || to_char(p_id) || ' is not locked.');
rollback;
exception
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dbms_output.put_line('Record ' || to_char(p_id) || ' is locked.');
end check_record_locked;
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check_record_locked('208104922058401');
check_record_locked('416208000770698');
check_record_locked('208104000385349');
end;
7. you will see that all records are identified as locked.
Is there a way that only 1 row will be locked, and the other 2 will be unlocked?
Thanks,
Yoni.

I don't have database access on weekends (look at it as a template)
suppose you
create table help_iot
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id1    varchar2(20),
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end;Regards
Etbin
introduced the_sysdate if last_modified must be the same for all updated rows
Edited by: Etbin on 29.11.2009 16:48

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