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Q: Basic PL SQL question ( Answered 5 out of 5 stars,   0 Comments )
Subject: Basic PL SQL question
Category: Computers > Programming
Asked by: bbsch1245-ga
List Price: $2.50
Posted: 20 Oct 2003 16:58 PDT
Expires: 19 Nov 2003 15:58 PST
Question ID: 268084
What is the PLSQL command that will count the unique entries in a

So if the table has this column ACCOUNT

The answer would be 3.
I tried "Select count unique ACCOUNT from table" and that didn't work
"Select unique ACCOUNT from TABLE" works to list all the unique ones,
but I just want the count of unique ones.

Subject: Re: Basic PL SQL question
Answered By: andyt-ga on 20 Oct 2003 17:24 PDT
Rated:5 out of 5 stars
Hi bbsch1245-ga,

You were close with your try of "Select count unique ACCOUNT from

The proper format is "Select count(distinct ACCOUNT) from table"

Research technique:
sql select count
sql select count(*)

A great sql tutorial can be found at .  
I reference it all the time.  In addition, an example of select count
can be found at

If you need a clarification, don't hesitate to ask,
bbsch1245-ga rated this answer:5 out of 5 stars
Thanks!  I especially appreciate the pointer to the sql tutorial.  If
there's a tutorial specifically for Oracle PL Sql do let me know. 

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