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Home > Forums > Programmers > DBMS Packages > Oracle: Oracle release 10g Forum

count length

thread1177-1682098
Read More Threads Like This One
Cretin (TechnicalUser)
2 May 12 9:00
Is there a way in PL/SQL to display a count of how many rows in a particular column has a certain length minus leading blanks?

For example how many rows have a customer number less than 9 characters ignoring leading blanks.  

Cretin
 
taupirho (Programmer)
2 May 12 10:41
To get rid of leading blanks use the LTRIM function in Oracle.

So something like

select count(mycol)
from mytable
where length(ltrim(mycol)) < 10


 


In order to understand recursion, you must first understand recursion.

carp (MIS)
2 May 12 10:49
You don't need PL/SQL for this.
Try

CODE

SELECT count(*)
  FROM (SELECT my_column
          FROM my_table
         WHERE length(ltrim(my_column)) = 25);
Just substitute 25 with the length you want.
Cretin (TechnicalUser)
2 May 12 12:10
Worked like a champ thank you.  

Cretin
 
SantaMufasa (TechnicalUser)
2 May 12 13:56
Cretin,

Out of curiosity, why did you specify, "Is there a way in PL/SQL to ..."?

santaMufasa
(aka Dave of Sandy, Utah, USA)
"People may forget what you say, but they will never forget how you made them feel."

Beilstwh (Programmer)
22 May 12 15:16
What about null columns

select count(*)
from mytable
where nvl(length(ltrim(mycol)),0) < 10

Bill
Lead Application Developer
New York State, USA

SantaMufasa (TechnicalUser)
22 May 12 17:12

Quote (Bill)

What about null columns

CODE

select count(*) from mytable where nvl(length(ltrim(mycol)),0) < 10
One could replace the "NVL(<expression>,0)" with "NVL(<expression>,999999999999999999999)" it seems to me.

santaMufasa
(aka Dave of Sandy, Utah, USA)
“People may forget what you say, but they will never forget how you made them feel."

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