Table Count

Feb 23, 2007

hi all,
how do we sum up all the quantity in table A, and save the summary quantity into table B? can we do it live? i mean evtime quantities in table A change, the total sum in table B also change accordingly.. pliz help... thanks in advance

~~~Focus on problem, not solution~~~

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Table Row Count + Index Row Count

Jul 23, 2005

SQL 2000I have a table with 5,100,000 rows.The table has three indices.The PK is a clustered index and has 5,000,000 rows - no otherconstraints.The second index has a unique constraint and has 4,950,000 rows.The third index has no constraints and has 4,950,000 rows.Why the row count difference ?Thanks,Me.

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Hi all



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any ideas

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I have database test007DB and I need count all table rows then insert into test99 table using ssis packages .

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t2 30
t3 25

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Imports System.Data.SqlClient



Which Import statement I need to use to for Oracle database. I am using a OLE DB Connection.



any idea?

thanks

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Jan 17, 2006

I have 2 tables:
 
TableA:
Name
UserA
UserB
UserC
 
Table B:
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UserA              xxx
UserB              asdasd
UserB              ewrsad
UserC              dsafasc
UserA              sdf
UserB              dfvr4
 
I want to count the total entries in Table B for every user in Table A.  The output would be:
 
Name               Count
UserA              2
UserB              3
UserC              1
 
I can use a Select Count statement, but I will have to make a SQL call for every user in Table A.  Also, Table A is dynamic, so the users are always changing.  Can this be incorporated into one SQL call to count the total rows in Table B for each user in Table A?

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May 23, 2007

Hello all,



I would like to use MDX to identify "contracts" which are in a table A and not in a table B, and count them to have a total per "company".

It should be something like:



Contract / Flag contracts not in table B (1=yes, 0=not)

---------------------------------------------------------------

Contract 1 1

Contract 2 0

Contract 3 1

Contract 4 1

Contract 5 0

Contract 6 0

TOTAL 3



So far I know how to distinguish at contract level which records belong to table A and not table B, but I do not have the total for the company.



In SQL it should be something like that:

SELECT Company,count(*)

FROM tableA

left join tableB

on tableA.Contract = tableB.Contract

WHERE tableB.Contract is null

GROUP BY Company



Thanks,

Guillaume

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0 Table Row Count

Oct 11, 2000

I noticed a web query was running unreasonably slow, so I investigated
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of a table, but instead of using the index seek, it acutually did a index
scan. I don't know why that query didn't use PK index, since the search
was on PK itself.

There is an other SQL server which has the exact same table(same data), I ran
that query against that table, and the query did what it suppose to do,
it used PK index, and was able to retrieve data very fast.

So I ran following commands and see if the systerm would use PK when
running the query:

(recreate all index(all non clusted))
sp_updatestat (all indexes)
sp_recompile (table)

But it didn't work, PK index was still not been used when that query was run.

Although I were able to slove the problem by force the web query to
use PK index, but I really don't like to force useage on any index.

So I thought there might be some corruptions in that table.
I didn't a dbcc showcontig, it showed that Page Density is 95%
and Frag is only 3.4% I also didn't some manual calculation
and only found very very small amount of unused space.

But when I ran sp_spaceused against that table,
and found out that the ROW COUNT for that table is 0!
but if I did select count (*), it returned the correct row count.
So I ran following commands

dbcc checkdb --- no error reported
dbcc checktable --- no error reported
dbcc updateusage (table) --- still got 0 row cound for sp_spaceused
(0 rows count in sysindexes for that table)

Question 1: Why PK index was not been used when the "where" of that query
was PK itself.

Question 2: Why that table has 0 row count?

Question 3: How can I fix the row count problem without introducing a
clustered index on that table or rebuilding that table?

Thanks guys!
Xiao

ps. that table has about 400,000 rows, and size of 20 MB

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Table 1 has columns:
1.A, 1.B, 1.C, 1.D

Table 2 has columns
2.A, 2.B, 2.C, 2.D, 2.Tag

where 2.Tag is a counter of all unique combinations of 1.C and 1.D.
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Therefore, if Table 1 is

x - x - x - x
x - x - x - x
x - x - x - x
x - x - x - y
x - x - x - z

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i was thinking of putting a variable in the select statement, but was unable to increment it.


thanks

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Hi,

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eg.

table-

create table ch1 (a int, b int, c int, d int)

insert ch1 values (1,1,1,1)
insert ch1 values (2,2,2,2)
insert ch1 values (1,1,1,1)
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insert ch1 values (1,3,4,5)

Here distinct row count in a table is 3 which I want to achieve thro a query.

if I do

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Please reply.

Cheers!
Ram.

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