Solved

Oracle - ORA-00932: inconsistent datatypes: expected NUMBER got CHAR

Posted on 2013-01-06
8
4,317 Views
Last Modified: 2013-01-06
Hello all

I have an error in the query bellow saying:
ORA-00932: inconsistent datatypes: expected NUMBER got CHAR

How can i fix this?

The value i have in that column is a rate. I want to have the format 0.00

Thanks again for your help

SELECT 
    'H',
    'M',
    ROW_NUMBER() OVER (ORDER BY TLR.CARRIER_ID) as ROW_NUM,
    TLR.CARRIER_ID,
    LRN.FROM_KEY_NUM,
    LRN.FROM_LOW_KEY_VALUE,
    CASE LRN.FROM_HIGH_KEY_VALUE
        WHEN '0' THEN ''
        ELSE LRN.FROM_HIGH_KEY_VALUE
      END,    
    LRN.FROM_COUNTRY,
    LRN.TO_KEY_NUM,
    LRN.TO_LOW_KEY_VALUE,
     CASE LRN.TO_HIGH_KEY_VALUE
        WHEN '0' THEN ''
        ELSE LRN.TO_HIGH_KEY_VALUE
      END,
    LRN.TO_COUNTRY,
       CASE TRD.UNLOAD_MILE_RATE
        WHEN '0' THEN ''
        ELSE TO_CHAR(TRD.UNLOAD_MILE_RATE,'fm99999.00')
      END,
    TRD.MAX_STOPS
FROM 
    TL_RATE TLR, TL_RATE_DETAIL TRD, LANE_RATE_NETWORK LRN

Open in new window

0
Comment
Question by:Wilder1626
8 Comments
 
LVL 14

Assisted Solution

by:ajexpert
ajexpert earned 140 total points
ID: 38748516
Could you please let us know datatype of UNLOAD_MILE_RATE in TL_RATE_DETAIL table?  I suspect it is already VARCHAR2
0
 
LVL 23

Expert Comment

by:David
ID: 38748526
Try instead, ELSE TO_NUMBER(TRD.UNLOAD_MILE_RATE,'fm99999.00')...

FYI, if you use SQL*Plus to test the statement, the parser will indicate where the error was found -- a faster way to debug the code.
0
 
LVL 11

Author Comment

by:Wilder1626
ID: 38748543
Hi ajexpert

The UNLOAD_MILE_RATE in TL_RATE_DETAIL is NUMBER(10,2) data type.

Hi dvz,

is SQL*PLUS a module i would have to instal?

I'm pretty new in Oracle sql.

also, i still have:
ORA-00932: inconsistent datatypes: expected NUMBER got CHAR

with:
 
 CASE TRD.UNLOAD_MILE_RATE
        WHEN '0' THEN ''
        ELSE TO_NUMBER(TRD.UNLOAD_MILE_RATE,'fm99999.00')
      END,

Open in new window

0
 
LVL 23

Expert Comment

by:David
ID: 38748720
Ok, I was wrong about changing the function, go back to TO_CHAR.  Change the THEN '' to THEN NULL, and try again.

SQL*Plus is a client-side terminal session.  With the target username, password, target database (SID), and TCP/IP port,  one can get into command line mode without any GUI interference.  It's a separate discussion, plenty of how-to in the knowledge base and on Oracle.
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 11

Author Comment

by:Wilder1626
ID: 38748735
I will look at this SQL*Plus.

Now with the update query to:
    CASE TRD.UNLOAD_MILE_RATE
        WHEN '0' THEN NULL
        ELSE TO_CHAR(TRD.UNLOAD_MILE_RATE,'fm99999.00')
      END,

Open in new window


I still have:
ORA-00932: inconsistent datatypes: expected NUMBER got CHAR
0
 
LVL 22

Accepted Solution

by:
Steve Wales earned 200 total points
ID: 38748816
If TRD.UNLOAD_MILE_RATE is a number I think the WHEN is what's causing the problem

You're comparing UNLOAD_MILE_RATE (a number) to '0' (a character).

Try this ?

    CASE TRD.UNLOAD_MILE_RATE
        WHEN 0 THEN NULL
        ELSE TO_CHAR(TRD.UNLOAD_MILE_RATE,'fm99999.00')
      END,

Open in new window

0
 
LVL 23

Assisted Solution

by:David
David earned 160 total points
ID: 38748840
Good catch; '0' should be 0.  However, it raises the question that inbound NULL values should be trapped as well.  Something like, when a rate is > 0, then to_char... else NULL.
0
 
LVL 11

Author Closing Comment

by:Wilder1626
ID: 38749423
Thanks to all, now it works.

It takes a long time to run but it works
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you find yourself in this situation “I have used SELECT DISTINCT but I’m getting duplicates” then I'm sorry to say you are using the wrong SQL technique as it only does one thing which is: produces whole rows that are unique. If the results you a…
Confronted with some SQL you don't know can be a daunting task. It can be even more daunting if that SQL carries some of the old secret codes used in the Ye Olde query syntax, such as: (+)     as used in Oracle;     *=     =*    as used in Sybase …
This video explains at a high level with the mandatory Oracle Memory processes are as well as touching on some of the more common optional ones.
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…

947 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now