The SAS Output Delivery System and reporting techniques

Selecting Top ten rows

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Super Contributor
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Selecting Top ten rows

I have a large table that I cannot open directly in SAS due to size.  I tried selecting only the top ten rows but the query is taking forever.  Is there a reason why selecting the top ten rows would have a delay at all?

 

data myTable_temp;
set mylibrary.myTable (obs=10);
run;


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Solution
‎05-16-2016 08:25 AM
Super Contributor
Posts: 465

Re: Selecting Top ten rows

I learned that a count(*) on a few actually takes a long time.  When querying large views the idea is to use a where clause.

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Grand Advisor
Posts: 10,251

Re: Selecting Top ten rows

Is your MyLibrary another database and not a native SAS data set?

Or located on a network with possible comminication issues?

Super Contributor
Posts: 465

Re: Selecting Top ten rows

How do I tell?  I see it as a SAS dataset under shared data in Enterprise Guide.

Super Contributor
Posts: 465

Re: Selecting Top ten rows

I tried doing a select count(*) that spins in Oracle on the table for five mintues with no result.

Grand Advisor
Posts: 10,251

Re: Selecting Top ten rows


DavidPhillips2 wrote:

How do I tell?  I see it as a SAS dataset under shared data in Enterprise Guide.


Assuming this is how to see what/where a library or data set may be

In Libraries under the server list right click on the library and select Properties from the menu. It will show the Path to the library and other

properties.

Solution
‎05-16-2016 08:25 AM
Super Contributor
Posts: 465

Re: Selecting Top ten rows

I learned that a count(*) on a few actually takes a long time.  When querying large views the idea is to use a where clause.

Respected Advisor
Posts: 3,124

Re: Selecting Top ten rows

Try this:

proc sql inobs=10;
create table mytable_temp as
select * from mylibrary.mytable;
quit;
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